| 1316058 |
sweet-scented Tritonia |
Tritonia squalida |
Sweet-scented tritonia Tritonia squalida |
| 1316056 |
Prickly-leaved massonia |
Massonia muricata |
Prickly-leaved massonia Massonia muricata |
| 1316059 |
Jack in the pulpit |
Arisaema triphyllum |
Zebra-flowered arum Arum triphyllum |
| 1316057 |
Melancholy toad-flax |
Linaria tristis |
Melancholy toad-flax Antirrhinum triste |
| 1316055 |
purple pitcherplant |
Sarracenia purpurea |
Broad-lipped purple side-saddle flower Sarracenia purpurea |
| 1316054 |
Warty St. John's wort |
Hypericum balearicum |
Warty St. John's wort Hypericum balearicum |
| 1316049 |
green hellebore |
Helleborus viridis |
Livid hellebore Helleborus lividus |
| 1316048 |
Hairy wachendorfia |
Wachendorfia hirsuta |
Hairy wachendorfia Wachendorfia hirsuta |
| 1316053 |
Canada lily |
Lilium canadense |
Canadian lily Lilium canadense |
| 1316050 |
Kowhai |
Sophora tetraptera |
Wing-podded sophora Sophora tetraptera |
| 1318010 |
strawberry |
Fragaria spp. |
Pan American strawberry |
| 1316046 |
purple coneflower |
Echinacea purpurea |
Cone flower Rudbeckia purpurea |
| 1316051 |
cobweb houseleek |
Sempervivum arachnoideum |
Cobweb houseleek Sempervivum arachnoideum |
| 2100018 |
bursting-heart |
Euonymus americanus |
|
| 1304019 |
sunflower |
Helianthus spp. |
|
| 0002160 |
hydrilla |
Hydrilla verticillata |
subsoil turions (tubers) at the end of horizontal stolons. These asexual reproductive structures are resistant to herbicides, and allow for rapid recolonization of a treated site |
| 1381003 |
Benghal dayflower |
Commelina benghalensis |
Red hairs on leaf sheath |
| 0022039 |
Russian knapweed |
Rhaponticum repens |
|
| 0002159 |
hydrilla |
Hydrilla verticillata |
heavy infestation, the rapid underwater growth "pushes" a portion of the mat above the water, giving the reservoir a field-like appearance |
| 1392063 |
buffalobur |
Solanum rostratum |
Stem` |
| 1117280 |
Jack in the pulpit |
Arisaema triphyllum |
|
| 1116084 |
leafy spurge |
Euphorbia esula |
|
| 0025051 |
leafy spurge |
Euphorbia esula |
host specificity field testing with Leafy Spurge by EBCL |
| 0021035 |
spotted knapweed |
Centaurea stoebe ssp. micranthos |
Field 20 miles east of Missoula |
| 0021037 |
spotted knapweed |
Centaurea stoebe ssp. micranthos |
Field 20 miles east of Missoula |
| 1116031 |
goldenrod |
Solidago spp. |
|
| 0025053 |
common St. Johnswort |
Hypericum perforatum |
research site near |
| 1355037 |
yellow starthistle |
Centaurea solstitialis |
|
| 1116050 |
star chickweed |
Stellaria pubera |
|
| 1319044 |
sweetpotato |
Ipomoea batatas |
New attractive sweet potato cultivar Ruddy (left) is sweet and moist and resists insects unlike the leading U.S. cultivar Beauregard. |
| 4723002 |
alligatorweed |
Alternanthera philoxeroides |
has opposite, non-succulent leaves |
| 1116085 |
leafy spurge |
Euphorbia esula |
|
| 1116053 |
bigroot morningglory |
Ipomoea pandurata |
In cotton |
| 1116012 |
hoary bowlesia |
Bowlesia incana |
|
| 1116036 |
mayapple |
Podophyllum peltatum |
|
| 0021033 |
diffuse knapweed |
Centaurea diffusa |
|
| 0025096 |
Scotch thistle |
Onopordum acanthium |
|
| 1381001 |
Benghal dayflower |
Commelina benghalensis |
Aerial flower |
| 1265114 |
Canada thistle |
Cirsium arvense |
|
| 0021031 |
diffuse knapweed |
Centaurea diffusa |
|
| 1316001 |
yellow starthistle |
Centaurea solstitialis |
|
| 0022046 |
yellow starthistle |
Centaurea solstitialis |
|
| 0023063 |
sulfur cinquefoil |
Potentilla recta |
|
| 0024037 |
musk thistle |
Carduus nutans |
|
| 0024036 |
musk thistle |
Carduus nutans |
|
| 4723001 |
alligatorweed |
Alternanthera philoxeroides |
mats grow from shore and often cover entire waterways thereby disrupting water flow and causing flooding. |
| 0022041 |
Russian knapweed |
Rhaponticum repens |
|
| 1116017 |
honeyvine swallowwort |
Cynanchum laeve |
|
| 0025022 |
musk thistle |
Carduus nutans |
|
| 0025095 |
Scotch thistle |
Onopordum acanthium |
|
| 0026011 |
musk thistle |
Carduus nutans |
|
| 0024072 |
common St. Johnswort |
Hypericum perforatum |
tallest plant found in old USSR |
| 0021032 |
diffuse knapweed |
Centaurea diffusa |
|
| 0024034 |
blessed milkthistle |
Silybum marianum |
|
| 0024055 |
musk thistle |
Carduus nutans |
over grazed pasture with excessive plants |
| 0025042 |
purple loosestrife |
Lythrum salicaria |
|
| 0024081 |
field bindweed |
Convolvulus arvensis |
15 miles east of Melville |
| 0024090 |
diffuse knapweed |
Centaurea diffusa |
|
| 1116150 |
yellow unicorn-plant |
Ibicella lutea |
Dried fruit |
| 1116055 |
fiveangled dodder |
Cuscuta pentagona var. pentagona |
|
| 1116054 |
fiveangled dodder |
Cuscuta pentagona var. pentagona |
|
| 0023009 |
common St. Johnswort |
Hypericum perforatum |
|
| 0026012 |
musk thistle |
Carduus nutans |
|
| 0026010 |
musk thistle |
Carduus nutans |
|
| 1116145 |
yellow unicorn-plant |
Ibicella lutea |
|
| 1321027 |
daylily |
Hemerocallis spp. |
Beautiful daylilies like these are a perennial favorite in American gardens. But recently they've been plagued by a rusty fungus. ARS scientists did some detective work to find out what was causing the disease. |
| 1116086 |
leafy spurge |
Euphorbia esula |
|
| 1116005 |
alligatorweed |
Alternanthera philoxeroides |
|
| 1116004 |
Palmer amaranth |
Amaranthus palmeri |
|
| 0025032 |
common St. Johnswort |
Hypericum perforatum |
A foot next to plant in the former USSR, the tallest plant in 6 weeks of looking |
| 0022038 |
Russian knapweed |
Rhaponticum repens |
|
| 0023021 |
common crupina |
Crupina vulgaris |
|
| 1116052 |
ivyleaf morningglory |
Ipomoea hederacea |
In cotton |
| 0021002 |
field bindweed |
Convolvulus arvensis |
taken 15 mile east of Melville, Montana |
| 1116040 |
Virginia bluebells |
Mertensia virginica |
|
| 1116099 |
sleepingplant |
Chamaecrista fasciculata var. fasciculata |
|
| 1392077 |
sticky nightshade |
Solanum sisymbriifolium |
|
| 0021092 |
purple loosestrife |
Lythrum salicaria |
|
| 3970065 |
leafy spurge |
Euphorbia esula |
rangeland severly infested |
| 0024098 |
squarrose knapweed |
Centaurea virgata |
|
| 0024096 |
squarrose knapweed |
Centaurea virgata |
|
| 1392074 |
sticky nightshade |
Solanum sisymbriifolium |
|
| 1392050 |
mullein nightshade |
Solanum donianum |
|
| 1392199 |
yellow fringed orchid |
Platanthera ciliaris |
|
| 1116135 |
bristly mallow |
Modiola caroliniana |
|
| 0025033 |
musk thistle |
Carduus nutans |
in full bloom |
| 1392075 |
sticky nightshade |
Solanum sisymbriifolium |
|
| 0025026 |
leafy spurge |
Euphorbia esula |
with intermittent dead plants (Probably from disease) |
| 1392047 |
mullein nightshade |
Solanum donianum |
|
| 1224038 |
ladies'-tresses |
Spiranthes spp. |
|
| 1392066 |
hairy nightshade |
Solanum physalifolium |
|
| 4723003 |
alligatorweed |
Alternanthera philoxeroides |
the white flowers are arranged in stalked, short, headlike spikes, and have a style |
| 0025050 |
horned spurge |
Euphorbia brachycera |
collected for host specificity testing |
| 1392044 |
twoleaf nightshade |
Solanum diphyllum |
|
| 1392076 |
sticky nightshade |
Solanum sisymbriifolium |
|
| 1392065 |
buffalobur |
Solanum rostratum |
|
| 1392170 |
trillium |
Trillium spp. |
|
| 1392205 |
small yellow lady' s slipper |
Cypripedium pubescens |
|
| 1392043 |
twoleaf nightshade |
Solanum diphyllum |
|
| 1392048 |
mullein nightshade |
Solanum donianum |
|
| 1392049 |
mullein nightshade |
Solanum donianum |
|
| 1392156 |
smooth Solomon's seal |
Polygonatum biflorum |
|
| 1392115 |
soybean |
Glycine max |
K-2 Combine |
| 0024070 |
common St. Johnswort |
Hypericum perforatum |
Mature plant |
| 1116034 |
jewelweed |
Impatiens capensis |
|
| 1224035 |
striped gentian |
Gentiana villosa |
|
| 1116136 |
scarlet rosemallow |
Hibiscus coccineus |
|
| 1392163 |
white clintonia |
Clintonia umbellulata |
|
| 1116083 |
leafy spurge |
Euphorbia esula |
|
| 1116028 |
dogfennel |
Eupatorium capillifolium |
|
| 1116025 |
horseweed |
Conyza canadensis |
|
| 0025092 |
Scotch thistle |
Onopordum acanthium |
|
| 0021034 |
spotted knapweed |
Centaurea stoebe ssp. micranthos |
|
| 1392103 |
goatsbeard |
Tragopogon spp. |
|
| 1392046 |
twoleaf nightshade |
Solanum diphyllum |
|
| 1392102 |
goatsbeard |
Tragopogon spp. |
|
| 1392064 |
buffalobur |
Solanum rostratum |
|
| 0025027 |
musk thistle |
Carduus nutans |
|
| 1392042 |
fuzzyfruit nightshade |
Solanum candidum |
|
| 0025049 |
leafy spurge |
Euphorbia esula |
young plant |
| 1392045 |
twoleaf nightshade |
Solanum diphyllum |
|
| 1392165 |
yellow fairybells |
Disporum lanuginosum |
|
| 1392169 |
trillium |
Trillium spp. |
|
| 1319088 |
pennycress |
Thlaspi spp. |
Hyperaccumulators like Thlaspi possess genes that regulate the amount of metals taken up from the soil by roots and deposited at other locations within the plant.. |
| 1392227 |
pickerelweed |
Pontederia cordata |
|
| 1392093 |
birdfoot violet |
Viola pedata |
|
| 1392203 |
small yellow lady' s slipper |
Cypripedium pubescens |
|
| 1392026 |
tall thimbleweed |
Anemone virginiana |
|
| 1392069 |
sticky nightshade |
Solanum sisymbriifolium |
|
| 1116024 |
horseweed |
Conyza canadensis |
|
| 1321003 |
soybean |
Glycine max |
Shading from soybeans leaves decreases the percentage of oleic acid in the seeds in relation to other fatty acids. |
| 1318075 |
soybean |
Glycine max |
|
| 1392051 |
nipplefruit |
Solanum mammosum |
|
| 0025097 |
toadflax |
Linaria spp. |
|
| 1392024 |
buttercup |
Ranunculus spp. |
|
| 1392157 |
smooth Solomon's seal |
Polygonatum biflorum |
|
| 1392095 |
field violet |
Viola arvensis |
|
| 1392072 |
sticky nightshade |
Solanum sisymbriifolium |
|
| 1392168 |
Virginia bunchflower |
Melanthium virginicum |
|
| 1392032 |
licorice weed |
Scoparia dulcis |
|
| 1318074 |
soybean |
Glycine max |
|
| 0024067 |
musk thistle |
Carduus nutans |
from a single seed head |
| 1117279 |
Jack in the pulpit |
Arisaema triphyllum |
|
| 1116152 |
devil's-claw |
Proboscidea louisianica |
|
| 1392023 |
Alabama larkspur |
Delphinium alabamicum |
|
| 1116027 |
purple coneflower |
Echinacea purpurea |
|
| 0024054 |
musk thistle |
Carduus nutans |
in pasture |
| 1116114 |
ground ivy |
Glechoma hederacea |
|
| 2153062 |
meadow hawkweed |
Hieracium caespitosum |
|
| 0024021 |
Canada thistle |
Cirsium arvense |
|
| 0024065 |
purple loosestrife |
Lythrum salicaria |
|
| 1392022 |
round-lobed hepatica |
Hepatica nobilis var. obtusa |
Over sandstone |
| 2100028 |
bristly mallow |
Modiola caroliniana |
|
| 2100019 |
copper iris |
Iris fulva |
|
| 2100033 |
ragweed parthenium |
Parthenium hysterophorus |
|
| 0024050 |
musk thistle |
Carduus nutans |
|
| 2100003 |
stinking chamomile |
Anthemis cotula |
|
| 1392068 |
hairy nightshade |
Solanum physalifolium |
|
| 1392071 |
sticky nightshade |
Solanum sisymbriifolium |
|
| 1116155 |
jumpseed |
Polygonum virginianum |
|
| 1117277 |
false aloe |
Manfreda virginica |
|
| 1116041 |
lesser swinecress |
Coronopus didymus |
|
| 2100031 |
showy evening-primrose |
Oenothera speciosa |
|
| 1116159 |
narrowleaf spring-beauty |
Claytonia virginica |
|
| 1316066 |
Dyer's woad |
Isatis tinctoria |
|
| 5309074 |
morningglory |
Ipomoea spp. |
Leaves of various morningglories; From Left to Right: red (Ipomoea coccinea L. ), pitted (Ipomoea lacunosa L.), entireleaf (Ipomoea hederacea var. integriuscula Gray), and ivyleaf (Ipomoea hederacea Jacq.). |
| 1317055 |
giant salvinia |
Salvinia molesta |
Giant salvinia is a fast-growing fern that can clog ponds and lakes. Forming mats up to 2 feet thick, the plant gobbles up oxygen and blocks sunlight needed by other water dwellers. |
| 0026020 |
common tansy |
Tanacetum vulgare |
|
| 0026016 |
common tansy |
Tanacetum vulgare |
|
| 0026005 |
common tansy |
Tanacetum vulgare |
common tansy |
| 0026017 |
common tansy |
Tanacetum vulgare |
|
| 1117268 |
water fern |
Salvinia minima |
Hattiesburg Convention Center |
| 1116160 |
narrowleaf spring-beauty |
Claytonia virginica |
|
| 0026022 |
Mediterranean sage |
Salvia aethiopis |
Before control |
| 0026021 |
Mediterranean sage |
Salvia aethiopis |
After control |
| 0026008 |
common tansy |
Tanacetum vulgare |
|
| 0026007 |
common tansy |
Tanacetum vulgare |
common tansy |
| 1299182 |
dandelion |
Taraxacum officinale |
in lawn; early in year |
| 0022074 |
purple loosestrife |
Lythrum salicaria |
|
| 1116153 |
common pokeweed |
Phytolacca americana |
Growing out of a fence post |
| 0021001 |
field bindweed |
Convolvulus arvensis |
|
| 1116154 |
standing-cypress |
Ipomopsis rubra |
|
| 0024053 |
musk thistle |
Carduus nutans |
|
| 0025093 |
Scotch thistle |
Onopordum acanthium |
|
| 1116048 |
spiderflower |
Cleome spinosa |
|
| 1392147 |
trillium |
Trillium spp. |
|
| 0025094 |
Scotch thistle |
Onopordum acanthium |
|
| 0022045 |
yellow starthistle |
Centaurea solstitialis |
|
| 1116079 |
nodding spurge |
Chamaesyce nutans |
|
| 1116003 |
Palmer amaranth |
Amaranthus palmeri |
|
| 1117278 |
false aloe |
Manfreda virginica |
|
| 1117270 |
water fern |
Salvinia minima |
|
| 1117271 |
water fern |
Salvinia minima |
|
| 1116061 |
field bindweed |
Convolvulus arvensis |
|
| 0026009 |
musk thistle |
Carduus nutans |
|
| 0024019 |
Canada thistle |
Cirsium arvense |
|
| 1392153 |
trillium |
Trillium spp. |
|
| 1392176 |
turk's-cap lily |
Lilium superbum |
|
| 1392181 |
fairywand |
Chamaelirium luteum |
|
| 1317078 |
yellow starthistle |
Centaurea solstitialis |
|
| 2153100 |
sulfur cinquefoil |
Potentilla recta |
|
| 1116021 |
eclipta |
Eclipta prostrata |
|
| 1392204 |
small yellow lady' s slipper |
Cypripedium pubescens |
|
| 1392197 |
showy orchid |
Galearis spectabilis |
|
| 1392139 |
dwarf crested iris |
Iris cristata |
|
| 1392172 |
trillium |
Trillium spp. |
|
| 0023013 |
common St. Johnswort |
Hypericum perforatum |
|
| 1117242 |
green dragon |
Arisaema dracontium |
|
| 0022001 |
squarrose knapweed |
Centaurea virgata |
|
| 1117273 |
water fern |
Salvinia minima |
|
| 1392141 |
dwarf crested iris |
Iris cristata |
|
| 0024051 |
musk thistle |
Carduus nutans |
|
| 1392177 |
turk's-cap lily |
Lilium superbum |
|
| 1117243 |
green dragon |
Arisaema dracontium |
|
| 1117274 |
water fern |
Salvinia minima |
|
| 1116047 |
spiderflower |
Cleome spinosa |
|
| 1116119 |
wild senna |
Senna marilandica |
|
| 1392067 |
hairy nightshade |
Solanum physalifolium |
|
| 1392151 |
trillium |
Trillium spp. |
|
| 1392142 |
crocosmia |
Crocosmia spp. |
|
| 2100044 |
ragweed parthenium |
Parthenium hysterophorus |
|
| 2100029 |
bristly mallow |
Modiola caroliniana |
|
| 1116109 |
squirrel corn |
Dicentra canadensis |
|
| 1392195 |
Kentucky lady's slipper |
Cypripedium kentuckiense |
|
| 0023082 |
leafy spurge |
Euphorbia esula |
|
| 1116020 |
Canada goldenrod |
Solidago canadensis var. scabra |
|
| 0022068 |
Mediterranean sage |
Salvia aethiopis |
rosette |
| 1116115 |
purple deadnettle |
Lamium purpureum |
|
| 1116142 |
American squawroot |
Conopholis americana |
|
| 2100012 |
Alabama croton |
Croton alabamensis |
Underside of leaf |
| 1392196 |
spiked crested coralroot |
Hexalectris spicata |
|
| 1555434 |
hemp dogbane |
Apocynum cannabinum |
|
| 1392150 |
trillium |
Trillium spp. |
|
| 1392145 |
nodding trillium |
Trillium cernuum |
|
| 2100010 |
plains coreopsis |
Coreopsis tinctoria |
|
| 1392173 |
bashful wakerobin |
Trillium catesbaei |
|
| 0022044 |
yellow starthistle |
Centaurea solstitialis |
|
| 1392185 |
purple fiveleaf orchid |
Isotria verticillata |
|
| 2100001 |
velvetleaf |
Abutilon theophrasti |
|
| 1392184 |
downy rattlesnake plantain |
Goodyera pubescens |
|
| 1392171 |
trillium |
Trillium spp. |
|
| 1392062 |
buffalobur |
Solanum rostratum |
|
| 1392029 |
Canadian lousewort |
Pedicularis canadensis |
|
| 1392180 |
turk's-cap lily |
Lilium superbum |
|
| 1392191 |
pink lady's-slipper |
Cypripedium acaule |
|
| 1392187 |
palegreen orchid |
Platanthera flava |
|
| 1392052 |
nipplefruit |
Solanum mammosum |
|
| 1392186 |
small yellow lady' s slipper |
Cypripedium pubescens |
|
| 1392152 |
trillium |
Trillium spp. |
|
| 1392025 |
red columbine |
Aquilegia canadensis |
|
| 1392193 |
showy orchid |
Galearis spectabilis |
|
| 1392086 |
violet |
Viola spp. |
|
| 1392028 |
tiny bluet |
Houstonia pusilla |
|
| 0022048 |
yellow starthistle |
Centaurea solstitialis |
|
| 1116015 |
Harper's heartleaf |
Hexastylis speciosa |
|
| 1392189 |
purple fringeless orchid |
Platanthera peramoena |
|
| 1392140 |
dwarf violet iris |
Iris verna |
|
| 1392188 |
purple fiveleaf orchid |
Isotria verticillata |
|
| 1392158 |
feathery false lily of the valley |
Maianthemum racemosum ssp. racemosum |
|
| 1392041 |
fuzzyfruit nightshade |
Solanum candidum |
|
| 1392030 |
sharpsepal beardtongue |
Penstemon tenuis |
|
| 1392036 |
Chinese thorn-apple |
Datura quercifolia |
|
| 1392092 |
birdfoot violet |
Viola pedata |
|
| 1392090 |
violet |
Viola spp. |
|
| 1392201 |
crippled cranefly |
Tipularia discolor |
|
| 1392198 |
showy orchid |
Galearis spectabilis |
|
| 1392174 |
yellow wakerobin |
Trillium luteum |
|
| 1392166 |
little sweet betsy |
Trillium cuneatum |
|
| 1392088 |
violet |
Viola spp. |
|
| 1392085 |
violet |
Viola spp. |
|
| 1392033 |
sacred thorn-apple |
Datura wrightii |
|
| 1392190 |
purple fringeless orchid |
Platanthera peramoena |
|
| 1392034 |
Chinese thorn-apple |
Datura quercifolia |
|
| 1392161 |
white clintonia |
Clintonia umbellulata |
|
| 1392160 |
Indian cucumber |
Medeola virginiana |
|
| 1392164 |
yellow fairybells |
Disporum lanuginosum |
|
| 1392200 |
crippled cranefly |
Tipularia discolor |
|
| 1392061 |
buffalobur |
Solanum rostratum |
|
| 1392089 |
violet |
Viola spp. |
|
| 1116014 |
American ginseng |
Panax quinquefolius |
|
| 1392149 |
red trillium |
Trillium erectum |
|
| 1117244 |
green dragon |
Arisaema dracontium |
Green fruit |
| 2153099 |
sulfur cinquefoil |
Potentilla recta |
|
| 1116046 |
gooseweed |
Sphenoclea zeylanica |
|
| 1392101 |
redstem filaree |
Erodium cicutarium |
|
| 1392037 |
cutleaf groundcherry |
Physalis angulata |
|
| 1116016 |
redring milkweed |
Asclepias variegata |
|
| 1116023 |
purple coneflower |
Echinacea purpurea |
|
| 2100030 |
bristly mallow |
Modiola caroliniana |
|
| 1392091 |
longspur violet |
Viola rostrata |
|
| 1116037 |
mayapple |
Podophyllum peltatum |
|
| 1117247 |
dwarf palmetto |
Sabal minor |
|
| 1392087 |
birdfoot violet |
Viola pedata |
|
| 1116026 |
purple coneflower |
Echinacea purpurea |
|
| 1224037 |
ladies'-tresses |
Spiranthes spp. |
|
| 1392159 |
feathery false lily of the valley |
Maianthemum racemosum ssp. racemosum |
|
| 1116035 |
pale touch-me-not |
Impatiens pallida |
|
| 1116101 |
bigpod sesbania |
Sesbania herbacea |
|
| 1116149 |
yellow unicorn-plant |
Ibicella lutea |
|
| 0022037 |
Russian knapweed |
Rhaponticum repens |
|
| 1321026 |
common bean |
Phaseolus vulgaris |
|
| 1392182 |
fairywand |
Chamaelirium luteum |
|
| 1116022 |
pinnate prairie coneflower |
Ratibida pinnata |
|
| 1392183 |
Blue Ridge wakerobin |
Trillium stamineum |
|
| 1116030 |
blessed milkthistle |
Silybum marianum |
|
| 1116029 |
blessed milkthistle |
Silybum marianum |
|
| 0025098 |
toadflax |
Linaria spp. |
|
| 1116033 |
dandelion |
Taraxacum officinale |
|
| 0025061 |
leafy spurge |
Euphorbia esula |
seed heads |
| 1392060 |
buffalobur |
Solanum rostratum |
|
| 1392031 |
sharpsepal beardtongue |
Penstemon tenuis |
|
| 1116113 |
scarlet beebalm |
Monarda didyma |
Blue Ridge Parkway |
| 1224034 |
striped gentian |
Gentiana villosa |
|
| 1116032 |
dandelion |
Taraxacum officinale |
|
| 1224032 |
striped gentian |
Gentiana villosa |
|
| 1392167 |
little sweet betsy |
Trillium cuneatum |
|
| 1117269 |
water fern |
Salvinia minima |
|
| 1116140 |
evening-primrose |
Oenothera spp. |
|
| 1116148 |
yellow unicorn-plant |
Ibicella lutea |
|
| 0002015 |
waterlettuce |
Pistia stratiotes |
|
| 1392073 |
sticky nightshade |
Solanum sisymbriifolium |
|
| 1116111 |
harvestbells |
Gentiana saponaria |
|
| 1224036 |
striped gentian |
Gentiana villosa |
|
| 0024020 |
Canada thistle |
Cirsium arvense |
research site |
| 1392035 |
Chinese thorn-apple |
Datura quercifolia |
|
| 1392094 |
field violet |
Viola arvensis |
|
| 1392144 |
nodding trillium |
Trillium cernuum |
|
| 2153098 |
sulfur cinquefoil |
Potentilla recta |
|
| 1116144 |
yellow unicorn-plant |
Ibicella lutea |
|
| 1116019 |
yellow thistle |
Cirsium horridulum |
|
| 1116121 |
purpleflower pinkroot |
Spigelia gentianoides var. alabamensis |
|
| 1392148 |
red trillium |
Trillium erectum |
|
| 1197043 |
coco yam, wild taro |
Colocasia esculenta |
|
| 1392178 |
turk's-cap lily |
Lilium superbum |
|
| 0023061 |
sulfur cinquefoil |
Potentilla recta |
|
| 1116151 |
yellow unicorn-plant |
Ibicella lutea |
|
| 1392202 |
small yellow lady' s slipper |
Cypripedium pubescens |
|
| 1392194 |
Kentucky lady's slipper |
Cypripedium kentuckiense |
|
| 1116018 |
common cocklebur |
Xanthium strumarium |
|
| 1116141 |
American squawroot |
Conopholis americana |
Steep slope in white oak sink |
| 1392179 |
turk's-cap lily |
Lilium superbum |
|
| 1224033 |
striped gentian |
Gentiana villosa |
|
| 1224031 |
striped gentian |
Gentiana villosa |
|
| 0026013 |
musk thistle |
Carduus nutans |
|
| 1116146 |
yellow unicorn-plant |
Ibicella lutea |
|
| 1381004 |
Benghal dayflower |
Commelina benghalensis |
|
| 1381002 |
Benghal dayflower |
Commelina benghalensis |
Double flower in profile |
| 1117264 |
horsetail |
Equisetum spp. |
Emerging plant |
| 2100032 |
ragweed parthenium |
Parthenium hysterophorus |
|
| 1392192 |
pink lady's-slipper |
Cypripedium acaule |
|
| 1392021 |
round-lobed hepatica |
Hepatica nobilis var. obtusa |
|
| 1117241 |
green dragon |
Arisaema dracontium |
|
| 1392146 |
trillium |
Trillium spp. |
|
| 1116102 |
bigpod sesbania |
Sesbania herbacea |
|
| 1116147 |
yellow unicorn-plant |
Ibicella lutea |
|
| 1319071 |
waxweed |
Cuphea spp. |
Cuphea in bloom. |
| 1392053 |
nipplefruit |
Solanum mammosum |
|
| 1116110 |
Virginia pennywort |
Obolaria virginica |
|
| 1117272 |
water fern |
Salvinia minima |
|
| 1392175 |
yellow wakerobin |
Trillium luteum |
|
| 0024097 |
squarrose knapweed |
Centaurea virgata |
|
| 0023062 |
sulfur cinquefoil |
Potentilla recta |
|
| 1552254 |
common milkweed |
Asclepias syriaca |
leaf surface |
| 1224238 |
birdsrape mustard |
Brassica rapa |
|
| 5309058 |
evening-primrose |
Oenothera spp. |
|
| 1318003 |
kenaf |
Hibiscus cannabinus |
Fifty-five percent of dried kenaf stalks will be used to make paper. Waste products from the process can be made into fertilizer and feed binder. |
| 0002016 |
waterlettuce |
Pistia stratiotes |
a severe infestation |
| 0002132 |
giant salvinia |
Salvinia molesta |
covering a farm pond restricts commercial and recreational use and degrades aesthetics |
| 0022047 |
yellow starthistle |
Centaurea solstitialis |
in flower |
| 1392057 |
West Indian nightshade |
Solanum ptycanthum |
In cotton field |
| 1392056 |
West Indian nightshade |
Solanum ptycanthum |
In cottonfield |
| 1392059 |
West Indian nightshade |
Solanum ptycanthum |
|
| 1392058 |
West Indian nightshade |
Solanum ptycanthum |
|
| 0025062 |
leafy spurge |
Euphorbia esula |
in flower |
| 1116143 |
maypop passionflower |
Passiflora incarnata |
|
| 1556408 |
giant ironweed |
Vernonia gigantea gigantea |
|
| 1560193 |
common yarrow |
Achillea millefolium |
in flower |
| 1560162 |
white vervain |
Verbena urticifolia |
|
| 1560096 |
yellow toadflax |
Linaria vulgaris |
in flower |
| 1560064 |
Canada thistle |
Cirsium arvense |
|
| 1560061 |
Canada thistle |
Cirsium arvense |
|
| 1560045 |
Canada thistle |
Cirsium arvense |
|
| 1560022 |
bull thistle |
Cirsium vulgare |
basal rosette |
| 1560009 |
common teasel |
Dipsacus fullonum |
basal rosette |
| 1551208 |
common yarrow |
Achillea millefolium |
|
| 1551056 |
hawkweeds |
Hieracium spp. |
|
| 1551053 |
hawkweeds |
Hieracium spp. |
|
| 1550291 |
garlic mustard |
Alliaria petiolata |
|
| 1550285 |
garlic mustard |
Alliaria petiolata |
|
| 1550284 |
garlic mustard |
Alliaria petiolata |
in flower |
| 1550263 |
creeping buttercup |
Ranunculus repens |
|
| 1550247 |
common mouse-ear chickweed |
Cerastium fontanum |
in flower |
| 1550245 |
common mouse-ear chickweed |
Cerastium fontanum |
|
| 1550246 |
common mouse-ear chickweed |
Cerastium fontanum |
|
| 1550235 |
common pokeweed |
Phytolacca americana |
|
| 1550228 |
common pokeweed |
Phytolacca americana |
flowers and immature fruit |
| 1550226 |
common pokeweed |
Phytolacca americana |
immature |
| 1550227 |
common pokeweed |
Phytolacca americana |
|
| 1550225 |
common pokeweed |
Phytolacca americana |
cotyledons |
| 1550224 |
wild four-o'clock |
Mirabilis nyctaginea |
|
| 1550220 |
wild four-o'clock |
Mirabilis nyctaginea |
|
| 1550212 |
red sorrel |
Rumex acetosella |
flowers and fruits |
| 1550210 |
red sorrel |
Rumex acetosella |
|
| 1550155 |
European stinging nettle |
Urtica dioica ssp. dioica |
|
| 1550152 |
European stinging nettle |
Urtica dioica ssp. dioica |
in flower |
| 1550125 |
tawny daylily |
Hemerocallis fulva |
|
| 1550120 |
tawny daylily |
Hemerocallis fulva |
|
| 1550007 |
field horsetail |
Equisetum arvense |
|
| 1559370 |
touch-me-not |
Impatiens spp. |
|
| 1559366 |
touch-me-not |
Impatiens spp. |
|
| 1559365 |
touch-me-not |
Impatiens spp. |
in flower |
| 1559363 |
jewelweed |
Impatiens capensis |
|
| 1559266 |
perennial sowthistle |
Sonchus arvensis |
|
| 1559259 |
red sorrel |
Rumex acetosella |
|
| 1559249 |
red sorrel |
Rumex acetosella |
|
| 1559246 |
red sorrel |
Rumex acetosella |
|
| 1559158 |
western salsify |
Tragopogon dubius |
|
| 1559153 |
western salsify |
Tragopogon dubius |
|
| 1557461 |
moth mullein |
Verbascum blattaria |
basal rosette |
| 1557442 |
common mullein |
Verbascum thapsus |
|
| 1557290 |
honeyvine swallowwort |
Cynanchum laeve |
|
| 1558293 |
common pokeweed |
Phytolacca americana |
fruiting along edge of corn field |
| 1558216 |
buckhorn plantain |
Plantago lanceolata |
in flower with roots |
| 1558214 |
buckhorn plantain |
Plantago lanceolata |
|
| 1558208 |
buckhorn plantain |
Plantago lanceolata |
|
| 1558203 |
broadleaf plantain |
Plantago major |
fruiting |
| 1558178 |
blackseed plantain |
Plantago rugelii |
Base of plant |
| 1558017 |
European stinging nettle |
Urtica dioica ssp. dioica |
|
| 1558012 |
European stinging nettle |
Urtica dioica ssp. dioica |
urticating hairs |
| 1558005 |
European stinging nettle |
Urtica dioica ssp. dioica |
fruiting |
| 1557049 |
Japanese knotweed |
Fallopia japonica |
|
| 1556419 |
ground ivy |
Glechoma hederacea |
|
| 1556409 |
giant ironweed |
Vernonia gigantea gigantea |
|
| 1556407 |
giant ironweed |
Vernonia gigantea gigantea |
|
| 1556390 |
giant ironweed |
Vernonia gigantea gigantea |
|
| 1556190 |
goldenrod |
Solidago spp. |
|
| 1556081 |
wild four-o'clock |
Mirabilis nyctaginea |
in flower |
| 1555353 |
tawny daylily |
Hemerocallis fulva |
base of plant. |
| 1556029 |
common evening-primrose |
Oenothera biennis |
|
| 1556026 |
common evening-primrose |
Oenothera biennis |
|
| 1555394 |
broadleaf dock |
Rumex obtusifolius |
|
| 1555322 |
dandelion |
Taraxacum officinale |
|
| 1555225 |
rough cinquefoil |
Potentilla norvegica |
|
| 1555147 |
big chickweed |
Cerastium fontanum ssp. vulgare |
in flower |
| 1555161 |
big chickweed |
Cerastium fontanum ssp. vulgare |
in flower |
| 1555119 |
common cattail |
Typha latifolia |
|
| 1555111 |
hairy cat's ear |
Hypochaeris radicata |
|
| 1555073 |
wild carrot |
Daucus carota ssp. carota |
|
| 1555061 |
wild carrot |
Daucus carota ssp. carota |
|
| 1553273 |
common yarrow |
Achillea millefolium |
|
| 1553266 |
Canada thistle |
Cirsium arvense |
|
| 1553263 |
Canada thistle |
Cirsium arvense |
fruiting |
| 1553261 |
Canada thistle |
Cirsium arvense |
|
| 1553239 |
goatsbeard |
Tragopogon spp. |
milky sap |
| 1553197 |
hawkweeds |
Hieracium spp. |
|
| 1553186 |
Canada goldenrod |
Solidago canadensis |
in flower |
| 1553188 |
Canada goldenrod |
Solidago canadensis |
|
| 1553187 |
Canada goldenrod |
Solidago canadensis |
|
| 1553175 |
dandelion |
Taraxacum spp. |
in flower |
| 1553174 |
dandelion |
Taraxacum spp. |
|
| 1553145 |
hairy cat's ear |
Hypochaeris radicata |
|
| 1553143 |
common burdock |
Arctium minus |
|
| 1553141 |
common burdock |
Arctium minus |
|
| 1553138 |
common burdock |
Arctium minus |
|
| 1553120 |
Jerusalem artichoke |
Helianthus tuberosus |
in flower |
| 1553118 |
Jerusalem artichoke |
Helianthus tuberosus |
|
| 1553117 |
Jerusalem artichoke |
Helianthus tuberosus |
|
| 1553108 |
teasel |
Dipsacus spp. |
basal rosette |
| 1553106 |
teasel |
Dipsacus spp. |
|
| 1553072 |
smooth bedstraw |
Cruciata laevipes |
|
| 1553068 |
bracted plantain |
Plantago aristata |
|
| 1553050 |
blackseed plantain |
Plantago rugelii |
|
| 1553048 |
blackseed plantain |
Plantago rugelii |
|
| 1553049 |
blackseed plantain |
Plantago rugelii |
|
| 1553028 |
moth mullein |
Verbascum blattaria |
basal rosette |
| 1553023 |
common mullein |
Verbascum thapsus |
|
| 1553022 |
bittersweet nightshade |
Solanum dulcamara |
|
| 1553015 |
bittersweet nightshade |
Solanum dulcamara |
in flower |
| 1553014 |
nightshade |
Solanum spp. |
|
| 1553013 |
nightshade |
Solanum spp. |
|
| 1553010 |
nightshade |
Solanum spp. |
|
| 1553005 |
smooth groundcherry |
Physalis longifolia var. subglabrata |
|
| 1553004 |
smooth groundcherry |
Physalis longifolia var. subglabrata |
fruiting |
| 1553001 |
smooth groundcherry |
Physalis longifolia var. subglabrata |
|
| 1552345 |
ground ivy |
Glechoma hederacea |
in flower |
| 1552346 |
ground ivy |
Glechoma hederacea |
|
| 1552332 |
catnip |
Nepeta cataria |
|
| 1552331 |
catnip |
Nepeta cataria |
|
| 1552333 |
catnip |
Nepeta cataria |
in flower |
| 1552301 |
bigroot morningglory |
Ipomoea pandurata |
|
| 1552278 |
field bindweed |
Convolvulus arvensis |
|
| 1552270 |
honeyvine swallowwort |
Cynanchum laeve |
|
| 1552255 |
common milkweed |
Asclepias syriaca |
|
| 1552253 |
common milkweed |
Asclepias syriaca |
|
| 1552252 |
common milkweed |
Asclepias syriaca |
in flower |
| 1552251 |
common milkweed |
Asclepias syriaca |
|
| 1552242 |
butterfly milkweed |
Asclepias tuberosa |
in flower |
| 1552243 |
butterfly milkweed |
Asclepias tuberosa |
|
| 1552231 |
hemp dogbane |
Apocynum cannabinum |
|
| 1552222 |
wild parsnip |
Pastinaca sativa |
|
| 1552215 |
wild parsnip |
Pastinaca sativa |
|
| 1552207 |
Queen Anne's lace, wild carrot |
Daucus carota |
in flower |
| 1552205 |
Queen Anne's lace, wild carrot |
Daucus carota |
|
| 1552193 |
evening-primrose |
Oenothera spp. |
|
| 1552233 |
hemp dogbane |
Apocynum cannabinum |
|
| 1552183 |
purple loosestrife |
Lythrum salicaria |
|
| 1552184 |
purple loosestrife |
Lythrum salicaria |
|
| 1552235 |
hemp dogbane |
Apocynum cannabinum |
in flower |
| 1552175 |
St. Andrew's cross |
Hypericum hypericoides |
|
| 1552259 |
common milkweed |
Asclepias syriaca |
|
| 1554304 |
creeping buttercup |
Ranunculus repens |
|
| 1554176 |
bouncingbet |
Saponaria officinalis |
|
| 1554087 |
smooth bedstraw |
Galium mollugo |
|
| 1554080 |
smooth bedstraw |
Galium mollugo |
in flower |
| 1554305 |
creeping buttercup |
Ranunculus repens |
|
| 1551162 |
perennial sowthistle |
Sonchus arvensis |
leaf margin |
| 1551160 |
perennial sowthistle |
Sonchus arvensis |
|
| 1551155 |
red sorrel |
Rumex acetosella |
|
| 1551024 |
common comfrey |
Symphytum officinale |
|
| 1551019 |
sulfur cinquefoil |
Potentilla recta |
|
| 1550185 |
Japanese knotweed |
Fallopia japonica |
|
| 1550181 |
Japanese knotweed |
Fallopia japonica |
|
| 1551002 |
white heath aster |
Symphyotrichum ericoides var. ericoides |
|
| 5309085 |
wild four-o'clock |
Mirabilis nyctaginea |
|
| 5309069 |
honeyvine swallowwort |
Cynanchum laeve |
|
| 5309053 |
eclipta |
Eclipta prostrata |
|
| 5309078 |
pitted morningglory |
Ipomoea lacunosa |
cotyledons |
| 5309051 |
yellow woodsorrel |
Oxalis stricta |
|
| 5309047 |
burcucumber |
Sicyos angulatus |
|
| 5309068 |
hemp sesbania |
Sesbania exaltata |
|
| 5309094 |
wild carrot |
Daucus carota ssp. carota |
|
| 5309067 |
hemp sesbania |
Sesbania exaltata |
mature plant |
| 5309050 |
common chickweed |
Stellaria pallida |
|
| 5309082 |
red morningglory |
Ipomoea coccinea |
cotyledons |
| 5309049 |
spreading dayflower |
Commelina diffusa |
Commelina diffusa flower in profile |
| 5309063 |
hemp dogbane |
Apocynum cannabinum |
flowers and fruit |
| 5309076 |
Benghal dayflower |
Commelina benghalensis |
Peanuts infested with Bengal dayflower (2 wks after planting) |
| 5309046 |
Benghal dayflower |
Commelina benghalensis |
Bengal dayflower with peanut in lower right corner |
| 5309048 |
Benghal dayflower |
Commelina benghalensis |
close up of Bengal dayflower in cotton |
| 5309064 |
hemp dogbane |
Apocynum cannabinum |
perennial shoot |
| 5309065 |
hemp dogbane |
Apocynum cannabinum |
|
| 5309070 |
ivyleaf morningglory |
Ipomoea hederacea |
|
| 5309066 |
hemp dogbane |
Apocynum cannabinum |
|
| 5309045 |
Benghal dayflower |
Commelina benghalensis |
plots weeded at 2 weeks after planting |
| 5309052 |
Benghal dayflower |
Commelina benghalensis |
seed recovered from gut contents of dove |
| 5309086 |
bitter sneezeweed |
Helenium amarum |
|
| 5309100 |
stinking chamomile |
Anthemis cotula |
|
| 5309095 |
sulfur cinquefoil |
Potentilla recta |
|
| 5309096 |
sulfur cinquefoil |
Potentilla recta |
|
| 5309083 |
redstem stork's bill |
Erodium cicutarium ssp. cicutarium |
|
| 5309097 |
bull thistle |
Cirsium vulgare |
|
| 5309099 |
stinking chamomile |
Anthemis cotula |
|
| 5310001 |
stinking chamomile |
Anthemis cotula |
|
| 5309098 |
bull thistle |
Cirsium vulgare |
|
| 5309037 |
Indiantobacco |
Lobelia inflata |
|
| 5309059 |
giant ragweed |
Ambrosia trifida |
mature plant |
| 5309084 |
tropic croton |
Croton glandulosus var. septentrionalis |
|
| 5309060 |
giant ragweed |
Ambrosia trifida |
|
| 5309081 |
purple deadnettle |
Lamium purpureum |
|
| 5309080 |
purple deadnettle |
Lamium purpureum |
purple dead nettle in corn stubble |
| 5309072 |
jimsonweed |
Datura stramonium |
|
| 5309073 |
jimsonweed |
Datura stramonium |
|
| 5309071 |
jimsonweed |
Datura stramonium |
cotyledons |
| 5309077 |
pink purslane |
Portulaca pilosa |
|
| 5309079 |
ladysthumb |
Persicaria maculosa |
|
| 5309090 |
prickly lettuce |
Lactuca serriola |
|
| 5309088 |
Queen Anne's lace, wild carrot |
Daucus carota |
|
| 5309038 |
common ragweed |
Ambrosia artemisiifolia |
|
| 5309089 |
sulfur cinquefoil |
Potentilla recta |
|
| 5309041 |
Benghal dayflower |
Commelina benghalensis |
in cotton gin trash |
| 5309044 |
Benghal dayflower |
Commelina benghalensis |
|
| 5309042 |
Benghal dayflower |
Commelina benghalensis |
in peanut 6 weeks into the season |
| 5309043 |
Benghal dayflower |
Commelina benghalensis |
|
| 5309087 |
common chickweed |
Stellaria pallida |
|
| 1319049 |
hairy vetch |
Vicia villosa |
Geneticist Thomas Devine inspects flowering of hairy vetch plants. Early-flowering hairy vetch is a more useful winter cover crop for farmers. |
| 1316052 |
wild bergamot |
Monarda fistulosa |
Crimson monarda Monarda fistulosa |
| 1316047 |
Norfolk-island lagunaea |
Lagunaea patersonia |
Norfolk-island lagunaea Lagunaea patersonia |
| 1319038 |
soybean |
Glycine max |
Plywood panels glued with a soy flour-based foamed adhesive, which is more environmentally friendly and less costly than the plywood industry's current glue. |
| 1319045 |
soybean |
Glycine max |
At USDA's Henry A. Wallace Beltsville (Maryland) Agricultural Research Center, the ARS National Visitor Center tour bus fueled with soy-based biodiesel passes a soybean field ready for harvesting. While USDA leads the way in using biofuels for vehicles and heating buildings, ARS scientists work to improve the production efficiency of soy diesel, ethanol, and other biofuels. |
| 1319039 |
soybean |
Glycine max |
|
| 1324015 |
common waterhemp |
Amaranthus rudis |
Early growth stage of water-hemp, a weed that is becoming resistant to certain herbicides. |
| 1320039 |
kenaf |
Hibiscus cannabinus |
Kenaf being harvested in the Rio Grande Valley of Texas. |
| 1323093 |
safflower |
Carthamus tinctorius |
A field of safflower, Carthamus tinctorius L. |
| 2514040 |
false garlic |
Nothoscordum bivalve |
False Garlic 15 April 1994 |
| 2514006 |
black-eyed susan |
Rudbeckia hirta |
|
| 2514023 |
partridgepea |
Chamaecrista fasciculata |
Cassia fasciculata Partridge pea |
| 2514024 |
partridgepea |
Chamaecrista fasciculata |
Partridge pea Cassia fasciculata |
| 2514035 |
pride of Ohio |
Dodecatheon meadia |
Dodecatheon meadia Oaky Woods 15 march 1992 |
| 2514036 |
pride of Ohio |
Dodecatheon meadia |
Dodecatheon meadia Oaky Woods 15 march 1992 |
| 2514037 |
pride of Ohio |
Dodecatheon meadia |
Dodecatheon meadia Oaky Woods 15 march 1992 |
| 2514042 |
green and gold |
Chrysogonum virginianum |
Chrysogonum Virginianum 23 Feb 1992 Linelsey Property. |
| 2514041 |
healall |
Prunella vulgaris |
|
| 2514025 |
tuberous vervain |
Verbena rigida |
Verbena rigida |
| 2514027 |
tuberous vervain |
Verbena rigida |
Verbena rigida |
| 2514028 |
rosering gaillardia |
Gaillardia pulchella |
Raysred tipped with Yellow.Callowhee, NC. Gaillardia pulchelli. |
| 2514029 |
rosering gaillardia |
Gaillardia pulchella |
Raysred tipped with Yellow.Callowhee, NC. Gaillardia pulchelli. |
| 2514026 |
common evening-primrose |
Oenothera biennis |
Oenothero biennis |
| 2514022 |
bitter sneezeweed |
Helenium amarum |
Helenium ararum 28 Aug 1993 |
| 2514034 |
lanceleaf wakerobin |
Trillium lancifolium |
Trillium lancifolium Oaky Woods. 15 March 1992. |
| 2514038 |
meadow alexanders |
Zizia trifoliata |
Zizia trifoliata 2 April1992 Oaky Woods. |
| 2514001 |
Atamasco lily |
Zephyranthes atamasca |
Atamasco lily Zephranthes atamasco spring 1993 |
| 2514032 |
Canadian lousewort |
Pedicularis canadensis |
Pedicularis canadensis Oaky weeds 2 April 1992. |
| 2514033 |
Canadian lousewort |
Pedicularis canadensis |
Pedicularis canadensis Oaky weeds 2 April 1992. |
| 2514002 |
candyroot |
Polygala nana |
|
| 2514005 |
scarlet beebalm |
Monarda didyma |
Monarda didyma at Crwafords |
| 1224149 |
jewelweed |
Impatiens capensis |
Jewelweed. |
| 2514004 |
yellow wakerobin |
Trillium luteum |
Trillium luteum Duncan Yard- Macon, GA |
| 1224143 |
sensitive partridgepea |
Chamaecrista nictitans |
Portridge Pea. |
| 1224144 |
milkweed |
Asclepias spp. |
Milkweed. |
| 2514007 |
Indian pink |
Spigelia marilandica |
Spigelia marilandica Indian Macon, GA 7 May 91 |
| 2514003 |
lady lupine |
Lupinus villosus |
Lupinus villosus April 22 1993 |
| 2513061 |
green pitcherplant |
Sarracenia oreophila |
|
| 2513047 |
piedmont mock bishopweed |
Ptilimnium nodosum |
|
| 2513062 |
Mohr's Barbara's buttons |
Marshallia mohrii |
|
| 2513050 |
Confederate wakerobin |
Trillium reliquum |
|
| 2513066 |
Cooley's meadow-rue |
Thalictrum cooleyi |
|
| 2513058 |
persistent wakerobin |
Trillium persistens |
|
| 1321067 |
soybean |
Glycine max |
As part of the ridge-tillage system practiced at the John Van Meter farm, OSU assistant farm manager Wayne Lewis cultivates for weed control in soybeans. |
| 1320027 |
birdsfoot trefoil |
Lotus corniculatus |
Birdsfoot trefoil contains tannin, a natural antibloating compound. |
| 1322084 |
sweet iris |
Iris pallida |
Purple iris, Iris pallida. |
| 1320086 |
larkspur |
Delphinium spp. |
On high mountain rangelands in central Utah, range technician Gus Warr collects larkspur samples to measure alkaloid levels. (K4377-14) |
| 1316035 |
alfalfa |
Medicago sativa |
Flowering alfalfa. |
| 1322085 |
bloody geranium |
Geranium sanguineum |
Geranium sanguineum, in the herb garden at the U.S. National Arboretum. |
| 1322086 |
oxeye daisy |
Leucanthemum vulgare |
Daisylike flower, Leucanthemum vulgare |
| 1322033 |
alpine pennycress |
Thlaspi montanum |
Alpine pennycress doesn't just thrive on soils contaminated with zinc and cadmium it cleans them up by removing the excess metals. |
| 1319070 |
boreal sweetvetch |
Hedysarum boreale |
Geneticist Tom Jones examines Utah sweetvetch flowering at North Ogden Pass in the Wasatch Mountains. |
| 2513049 |
northern waterplantain |
Alisma plantago-aquatica |
|
| 1316036 |
barrel medick |
Medicago truncatula |
Plant physiologist Carroll Vance evaluates roots of alfalfa, Medicago truncatula, as part of his efforts to help the crop fix more nitrogen and take in more phosphorus. |
| 1317075 |
safflower |
Carthamus tinctorius |
Biologist Craig Cavin examines safflower leaves inoculated with Puccinia carthami (left), an indigenous safflower pathogen, and Puccinia jaceae (right), a candidate for biological control of yellow starthistle. |
| 1318027 |
bird-of-paradise |
Strelitzia reginae |
Flower of bird-of-paradise |
| 1318047 |
strawberry |
Fragaria x ananassa |
|
| 1318045 |
strawberry |
Fragaria spp. |
Plant pathologist Carolee Bull (left) and technicians Joel Stryker (center) and Adria Bordas discuss the effectiveness of biological weed and disease control at a research site on grower Rod Koda's ranch. |
| 1318042 |
strawberry |
Fragaria spp. |
Ranchers in California set aside portions of their farms for collaborative studies on methyl bromide alternatives for strawberries. Carolee Bull (right) and Adria Bordas evaluate biologically based methods for weed and disease control at Rod Koda's ranch. |
| 1318044 |
strawberry |
Fragaria spp. |
Farm manager Arthur Ayala and Carolee Bull discuss commercial variety trials being conducted at the farm of Dale and Christine Coke in San Juan Bautista, California. |
| 1319013 |
strawberry |
Fragaria spp. |
Small-fruit geneticist Stan Hokanson displays several elite wild strawberries collected by collaborators. The small, highly aromatic berries (left) are from plants collected in Alberta, Canada. The larger berries are from a type collected in Alaska that may prove to be cold hardy. |
| 1321098 |
fire lily |
Cyrtanthus spp. |
Fire lily, a Cyrtanthus hybrid. |
| 1324012 |
annual wormwood |
Artemisia annua |
Annual wormwood, Artemisia annua L., yields the important antimalarial drug artemisinin. |
| 1321025 |
soybean |
Glycine max |
To determine the effect of elevated CO2 on plant growth, University of Illinois students harvest aboveground growth of soybean plants. |
| 1321096 |
wood sorrel |
Oxalis acetosella |
Wood sorrel, Oxalis. |
| 1321100 |
chihuahua flower |
Tacitus bellus |
Tacitus bellus. |
| 1322079 |
melon |
Cucumis melo |
Cantaloupes, sometimes called muskmelons. |
| 1322080 |
melon |
Cucumis melo |
Cantaloupes, sometimes called muskmelons. |
| 1324037 |
common bean |
Phaseolus vulgaris |
A closeup look at Burke, the latest pinto bean from ARS and university plant scientists. It resists a host of harmful fungi and viruses that can otherwise cheat growers of a bountiful harvest. |
| 1228071 |
maypop passionflower |
Passiflora incarnata |
|
| 1228072 |
maypop passionflower |
Passiflora incarnata |
and bumble bee |
| 1392162 |
white clintonia |
Clintonia umbellulata |
|
| 1392118 |
soybean |
Glycine max |
Rolling cover crop prior to soybean planting |
| 1392019 |
bigpod sesbania |
Sesbania herbacea |
Cotoran |
| 1197044 |
coco yam, wild taro |
Colocasia esculenta |
|
| 1355036 |
yellow starthistle |
Centaurea solstitialis |
Morning dew on a yellow starthistle leaf. Evening inoculations with rust spores (from Puccinia jaceae var. solstitialis) are made to catch the overnight dew needed for spore germination and infection. |
| 1117081 |
globe sedge |
Cyperus croceus |
|
| 1116103 |
bigpod sesbania |
Sesbania herbacea |
N-Fixing nodules on Sesbania |
| 1355034 |
yellow starthistle |
Centaurea solstitialis |
California Department of Food and Agriculture lab assistant Viola Popescu uses a cyclone spore collector developed at the Fort Detrick lab to harvest inoculum from plants at the CDFA greenhouse in Sacramento. |
| 1355035 |
yellow starthistle |
Centaurea solstitialis |
Small, rust-colored spots on starthistle leaves. The presence of these spots indicates that the first field releases of rust spores on starthistle are a success. |
| 1355033 |
yellow starthistle |
Centaurea solstitialis |
Three weeks after yellow starthistle was inoculated with rust spores, ARS plant pathologist Bill Bruckart (left) and California Department of Food and Agriculture plant pathologist Dale Woods inspect one of 20 test sites to learn about the pathogen's performance. |
| 1355040 |
giant salvinia |
Salvinia molesta |
Entomologist Philip Tipping collects samples of common salvinia at the Loxahatchee wildlife refuge in Florida. |
| 1355041 |
giant salvinia |
Salvinia molesta |
Here, in a greenhouse, Student Conservation Association intern Melissa Martin and entomologist Philip Tipping record giant salvinia biomass. |
| 1322064 |
peanut |
Arachis hypogaea |
When you add it all up, peanuts aren't just peanuts-they're quite an important crop. The United States produces between 3 and 4 billion pounds of peanuts annually, and about 40 percent of these go into processed foods, from salted peanuts, candy, crackers, and cookies to peanut butter. They're a major source of vegetable oil too.
peanuts have been the object of scientific study since George Washington Carver's day. ARS scientists have worked to improve peanut flavor and quality both by breeding better peanuts and by finding better ways to process them. Success came with the discovery of ways to extend the shelf life of peanut products, since unstable fatty acids in peanuts can cause unpleasant flavor changes. We've also found ways to remove part of the oil from the peanut without serious loss of flavor. Partially defatted peanuts are now sold by several companies, and the market is growing.
With the help of precision lab instruments and the sensitive noses of volunteers, ARS chemists have pinpointed chemicals that are crucial to that unmistakable peanutty flavor. This work reveals that roasted peanuts probably owe their rich, nutty aroma to a blend of about a dozen natural compounds. The findings could be used to enrich the flavor of roasted peanuts by adding back compounds that are sometimes lost in processing. |
| 1320087 |
soybean |
Glycine max |
Mature soybeans, sitting within their pod. |
| 1320088 |
soybean |
Glycine max |
|
| 1320057 |
strawberry |
Fragaria x ananassa |
Sweet, juicy strawberries not only taste good, they're also full of nutrition. Low in calories and carbohydrates, the raw fruit is a good source of fiber potassium, iron, and vitamin C. |
| 1228025 |
tropical passionflower |
Passiflora anadenia |
|
| 1228016 |
maypop passionflower |
Passiflora incarnata |
|
| 1228023 |
maypop passionflower |
Passiflora incarnata |
|
| 1228017 |
maypop passionflower |
Passiflora incarnata |
|
| 1228013 |
maypop passionflower |
Passiflora incarnata |
|
| 1228015 |
maypop passionflower |
Passiflora incarnata |
|
| 1228012 |
maypop passionflower |
Passiflora incarnata |
|
| 1228014 |
maypop passionflower |
Passiflora incarnata |
|
| 0025063 |
leafy spurge |
Euphorbia esula |
research site |
| 0025064 |
leafy spurge |
Euphorbia esula |
Horses running through research site |
| 0024049 |
yellow starthistle |
Centaurea solstitialis |
a Russian entomologist examining a seed head |
| 0021038 |
spotted knapweed |
Centaurea stoebe ssp. micranthos |
Field 20 miles east of Missoula |
| 0021036 |
spotted knapweed |
Centaurea stoebe ssp. micranthos |
Field 20 miles east of Missoula |
| 0002161 |
hydrilla |
Hydrilla verticillata |
Joe Balciunas surveying for hydrilla agents (August 1983) at Lake Dal. Of the four agents approved for release two were shipped from India. |
| 0002158 |
hydrilla |
Hydrilla verticillata |
growing tip |
| 0002133 |
water fern |
Salvinia minima |
hairs are separated by the tips |
| 0022049 |
yellow starthistle |
Centaurea solstitialis |
|
| 0022050 |
yellow starthistle |
Centaurea solstitialis |
|
| 0025054 |
common St. Johnswort |
Hypericum perforatum |
light background showing through glands in the leaves of St. Johnswort |
| 0023011 |
common St. Johnswort |
Hypericum perforatum |
|
| 0025058 |
common St. Johnswort |
Hypericum perforatum |
showing deep tap root |
| 0024080 |
leafy spurge |
Euphorbia esula |
attacke by a fungus disease |
| 0024042 |
leafy spurge |
Euphorbia esula |
broken exuding latex sap. |
| 0025052 |
leafy spurge |
Euphorbia esula |
studying feeding damage in host specificity study |
| 0025082 |
leafy spurge |
Euphorbia esula |
Feet with 1/10th meter daubenmeyer frame for sampling a site in the pilot program |
| 0025025 |
leafy spurge |
Euphorbia esula |
root |
| 0024041 |
leafy spurge |
Euphorbia esula |
10 foot trench showing the length of exposed roots |
| 0026023 |
purple loosestrife |
Lythrum salicaria |
before shot |
