Steve Dewey's Images
Title: Extension Weed SpecialistOrganization: Utah State University
Unit: Plants, Soils, and Biometeorology Dept
Country: United States
Professional Societies:
| 43 Images of 38 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 1459579 | spiny sowthistle | Sonchus asper | |
| 1459358 | birdsrape mustard | Brassica rapa | |
| 1459315 | purple loosestrife | Lythrum salicaria | |
| 1459883 | common yarrow | Achillea millefolium | |
| 1459178 | jointed goatgrass | Aegilops cylindrica | |
| 1459749 | thistle | Cirsium spp. | Musk thistle - left; Bull thistle - right |
| 1459205 | poison-hemlock | Conium maculatum | the leaf on the right is from poison hemlock (Conium maculatum), and the leaf on the left is from western water hemlock (Cicuta douglasii). |
| 1459160 | Siberian elm | Ulmus pumila | |
| 1459198 | giantseed goosefoot | Chenopodium simplex | |
| 1459305 | prickly lettuce | Lactuca serriola | |
| 1459641 | ridgeseed spurge | Chamaesyce glyptosperma | |
| 1459725 | bull thistle | Cirsium vulgare | |
| 1459740 | New Mexico thistle | Cirsium neomexicanum | |
| 1459730 | meadow thistle | Cirsium scariosum | |
| 1459373 | bittersweet nightshade | Solanum dulcamara | |
| 1459398 | Russian-olive | Elaeagnus angustifolia | |
| 1459136 | oxeye daisy | Leucanthemum vulgare | |
| 1459531 | common St. Johnswort | Hypericum perforatum | |
| 1459880 | common yarrow | Achillea millefolium | |
| 1459366 | European stinging nettle | Urtica dioica ssp. dioica | |
| 1459704 | common teasel | Dipsacus fullonum | |
| 1459188 | goatsrue | Galega officinalis | |
| 1459156 | dogfennel | Eupatorium capillifolium | |
| 1459811 | Dalmatian toadflax | Linaria dalmatica | |
| 1459755 | Canada thistle | Cirsium arvense | |
| 1459292 | ladysthumb | Persicaria maculosa | |
| 1459545 | tamarisk | Tamarix spp. | |
| 1459462 | eastern poison-ivy | Toxicodendron radicans | |
| 1459779 | musk thistle | Carduus nutans | |
| 1459784 | spiny plumeless thistle | Carduus acanthoides | |
| 1459774 | musk thistle | Carduus nutans | |
| 1459661 | yellow starthistle | Centaurea solstitialis | |
| 1459213 | spotted waterhemlock | Cicuta maculata | |
| 1459102 | camelthorn | Alhagi maurorum | |
| 1459108 | sulfur cinquefoil | Potentilla recta | |
| 1459356 | common mullein | Verbascum thapsus | |
| 1459480 | puncturevine | Tribulus terrestris | |
| 1459590 | perennial sowthistle | Sonchus arvensis | |
| 1459722 | bull thistle | Cirsium vulgare | |
| 1459940 | bermudagrass | Cynodon dactylon | |
| 1459303 | prickly lettuce | Lactuca serriola | Rosette |
| 1459687 | yellow sweetclover | Melilotus officinalis | Sweetclover - left; alfalfa - right |
| 1459585 | spiny sowthistle | Sonchus asper | S. asper on left, S. oleraceus on right |
