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Poaceae

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Liliopsida
Subclass: Commelinidae
Order: Cyperales
Family: Poaceae

Remove Filters: Spikelet(s)(X)

181 Images of 89 Subjects View Subject List View Image Details View Thumbnails

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Image Subject Name Scientific Name Description
5376424 velvet fingergrass Digitaria velutina Spikelets. FNW taxon.
5376421 African couchgrass Digitaria abyssinica Inflorescence. FNW taxon.  
5376876 Texas millet Urochloa texana Spikelets; in ventral view showing lower glume and sterile lemma (left) and dorsal view showing upper glume (right). Similar to an FNW taxon.
5376874 browntop millet Urochloa ramosa From left to right: spikelet in dorsal view showing upper glume; spikelet in ventral view showing lower glume and sterile lemma; floret in dorsal view showing lemma; floret in ventral view showing palea and margins of fertile lemma. Similar to an FNW taxon.
5376873 liverseedgrass Urochloa panicoides From left to right: Spikelet in ventral view showing lower glume and sterile lemma; spikelet in dorsal view showing upper glume; floret in ventral view showing palea and margins of fertile lemma; floret in dorsal view showing lemma. FNW taxon.
5376844 sudangrass Sorghum bicolor ssp. drummondii Spikelets in ventral view. Similar to an FNW taxon.
5376841 johnsongrass Sorghum halepense Spikelets with apices broken off. FNW taxon.
5376840 johnsongrass Sorghum halepense Portion of inflorescence (left); terminal spikelet with two pedicellate spikelets (middle); spikelet with pedicellate spikelet and rachis segment (right). FNW taxon.
5376839 johnsongrass Sorghum halepense Dorsal view of spikelets. FNW taxon.
5376838 johnsongrass Sorghum halepense Ventral view of spikelets with pedicel and rachis segment. FNW taxon.
5376836 sorghum-almum Sorghum almum Spikelets in ventral view. Similar to an FNW taxon.
5376803 yellow foxtail Setaria pumila Spikelets in dorsal view showing upper glume and lemma. Similar to an FNW taxon.
5376804 yellow foxtail Setaria pumila Spikelet in dorsal view showing upper glume and lemma. Similar to an FNW taxon.
5376801 knotroot foxtail Setaria parviflora Left to right: Two spikelets in dorsal view showing upper glume and fertile lemma; spikelet in ventral view showing lower glume and sterile lemma; floret in dorsal view; floret in ventral view. Similar to an FNW taxon.
5376798 cattail grass Setaria pumila ssp. pallidefusca Spikelets in dorsal view. FNW taxon.
5376797 cattail grass Setaria pumila ssp. pallidefusca Spikelets in ventral view showing lower glume and sterile lemma (top) and dorsal view showing upper glume and fertile lemma (bottom). FNW taxon.
5376780 wild sugarcane Saccharum spontaneum Spikelet. FNW taxon.
5376777 wild sugarcane Saccharum spontaneum Three disseminules, each comprising a spikelet, pedicel, and internode. FNW taxon.
5376778 wild sugarcane Saccharum spontaneum Disseminule comprising spikelet, pedicel, and internode. FNW taxon.
5376776 sugarcane Saccharum officinarum Spikelet. Similar to an FNW taxon.
5376775 sugarcane Saccharum officinarum Spikelet with attached pedicel and internode. Similar to an FNW taxon.
5376773 sugarcane Saccharum officinarum Spikelets in two views. Similar to an FNW taxon.
5471971 Uruguayan pampas grass Cortaderia selloana Male spikelet with stamens missing but some pollen remaining.
5376615 African feathergrass Pennisetum macrourum Spikelets singly and in clusters, each subtended by a fascicle of bristles. FNW taxon.
5376610 kikuyugrass Pennisetum clandestinum Left to right: two spikelets enclosed in leaf sheaths; three spikelets without leaf sheaths. FNW taxon.
5376622 mission grass Pennisetum polystachion Disseminule, which is a spikelet enclosed by a fascicle of bristles. FNW taxon.
5376605 ricegrass paspalum Paspalum scrobiculatum Spikelets in dorsal view showing upper glume (top row) and ventral view showing sterile lemma (bottom row). FNW taxon.
5376564 serrated tussock Nassella trichotoma Spikelets and empty glumes. FNW taxon.
5376502 mucronate sprangeltop Leptochloa panicea ssp. brachiata Portion of inflorescence. Similar to an FNW taxon.
5376496 saramollagrass Ischaemum rugosum Portions of inflorescence. FNW taxon.
5376494 saramollagrass Ischaemum rugosum Disseminules with parts broken off. FNW taxon.
5376493 saramollagrass Ischaemum rugosum Disseminules comprising sessile spikelet, internode, pedicel, and pedicellate spikelet. FNW taxon.
5376489 cogongrass Imperata cylindrica Spikelets. FNW taxon.
5376487 Brazilian satintail Imperata brasiliensis Spikelets and portion of inflorescence axis (far right). FNW taxon.
5376486 Brazilian satintail Imperata brasiliensis Spikelet. FNW taxon.
5376485 Brazilian satintail Imperata brasiliensis Spikelet. FNW taxon.
5376484 Brazilian satintail Imperata brasiliensis Two spikelets. FNW taxon.
5376442 quackgrass Elymus repens Spikelet. FNW taxon.
5376428 velvet fingergrass Digitaria velutina Spikelets in ventral view showing sterile lemma. FNW taxon.
5376427 velvet fingergrass Digitaria velutina Spikelets in dorsal view showing upper glume and fertile lemma. FNW taxon.
5376423 velvet fingergrass Digitaria velutina Mostly spikelets. FNW taxon.
5444769 Pacific bentgrass Agrostis avenacea Part of an inflorescence.
5376366 pilipiliula Chrysopogon aciculatus Close-up of sessile spikelets. FNW taxon.
5376365 pilipiliula Chrysopogon aciculatus Sessile spikelets, all with two pedicellate spikelets except second from right, with just pedicels. FNW taxon.
5469986 large crabgrass Digitaria sanguinalis Dorsal (left) and ventral (right) views of spikelet.
5467298 sorghum Sorghum bicolor Close-up of a fertile spikelet of an uncultivated strain.
5467299 sorghum Sorghum bicolor Three spikelet pairs, each with a sterile pedicellate spikelet and a fertile sessile spikelet.
5467287 small fescue Vulpia microstachys Empty glumes.
5467281 sorghum-almum Sorghum almum Ventral view of fertile spikelets where rough handling has resulted in reduced rachis and pedicel fragments.
5467280 sorghum-almum Sorghum almum Spikelets. A, C—ventral view showing upper glume and tiny remnants of pedicel and/or rachis; B, D, E—dorsal view showing the back of the lower glume.
5467278 green foxtail Setaria viridis Spikelets. Most in dorsal view showing edges of lower glume (at bottom), upper glume, and a bit of fertile lemma.
5467274 green foxtail Setaria viridis Cluster of three normal and one aborted spikelets with their eleven bristles.
5467271 bristly foxtail Setaria verticillata Spikelets in various positions.
5467270 bristly foxtail Setaria verticillata Spikelets in various positions, labeled.
5467266 yellow foxtail Setaria pumila ssp. pumila Spikelet in ventral view with lower glume and sterile lemma removed to reveal sterile palea.
5467263 giant foxtail Setaria faberi Spikelet in dorsal view showing upper glume and fertile lemma.
5467261 giant foxtail Setaria faberi Spikelets in dorsal, ventral and lateral views.
5467259 giant foxtail Setaria faberi Spikelets in ventral view, the one on the left at an angle.
5467256 bur bristlegrass Setaria adhaerens Spikelet in dorsal view.
5467254 bur bristlegrass Setaria adhaerens Spikelet in ventral view.
5467251 bur bristlegrass Setaria adhaerens Spikelet with bristles still attached. (There were originally two spikelets attached, with one bristle per spikelet.) Note that the bristles are retrorsely scabrous.
5467250 common mediterraneangrass Schismus barbatus Spikelet.
5467249 common mediterraneangrass Schismus barbatus Two intact spikelets.
5467232 water-bent Polypogon viridis Spikelets.
5467233 water-bent Polypogon viridis Spikelets. Note persistent pedicel/stipe at base.
5467223 rabbitfoot polypogon Polypogon monspeliensis Spikelet close-up. Note bristly glume apices.
5467224 rabbitfoot polypogon Polypogon monspeliensis Spikelets in lateral view. The lower glume is on the left in the first spikelet and on the right in the remaining spikelets.
5467229 ditch polypogon Polypogon interruptus Spikelets. Note that all awns are easily broken off.
5467225 ditch polypogon Polypogon interruptus Spikelet, labeled.
5467226 ditch polypogon Polypogon interruptus Spikelet.
5466601 Sandberg bluegrass Poa secunda Spikelet with two florets.
5466579 bulbous bluegrass Poa bulbosa ssp. vivipara Glumes subtending a spikelet of bulblets.
5466565 common reed Phragmites australis Two spikelet bases, which include glumes and a sterile floret.
5466564 common reed Phragmites australis Top of a spikelet with six florets.
5466544 crimson fountaingrass Pennisetum setaceum Spikelet measuring 6.8 mm long.
5466545 crimson fountaingrass Pennisetum setaceum Disseminule with some bristles removed to reveal spikelet cluster.
5466543 crimson fountaingrass Pennisetum setaceum Spikelet with glumes removed.
5466541 crimson fountaingrass Pennisetum setaceum Close-up of a plumose bristle.
5466540 buffelgrass Pennisetum ciliare Three fascicles containing spikelet clusters subtended by whorls of bristles.
5466539 buffelgrass Pennisetum ciliare Three fascicles containing spikelet clusters subtended by whorls of bristles.
5466538 buffelgrass Pennisetum ciliare Disseminule (a fascicle) with some bristles removed to show the three spikelets.
5466022 knotgrass Paspalum distichum Two spikelets in ventral view (left) showing sterile lemma and edges of upper glume and two in dorsal view (right) showing upper glume. Note pedicel remnant on the last spikelet.
5466018 dallisgrass Paspalum dilatatum Spikelets in dorsal and ventral views.
5466019 dallisgrass Paspalum dilatatum Spikelet in ventral (left) and dorsal (right) views.
5466017 dallisgrass Paspalum dilatatum Spikelets in dorsal and ventral views. Labeled.
5466012 desert panicgrass Panicum urvilleanum Sterile palea and sterile lemma still attached at their bases, but otherwise removed from the rest of the spikelet.
5466011 desert panicgrass Panicum urvilleanum Spikelet in lateral view.
5466010 desert panicgrass Panicum urvilleanum Spikelets in various views.
5466003 witchgrass Panicum capillare ssp. hillmanii Sterile palea.
5466002 witchgrass Panicum capillare ssp. hillmanii Spikelet in lateral view.
5465999 witchgrass Panicum capillare ssp. hillmanii Spikelet in dorsal (left) and ventral (right) views. Labeled.
5466001 witchgrass Panicum capillare ssp. hillmanii Spikelet in dorsal (left) and ventral (right) views.
5466006 fall panicum Panicum dichotomiflorum Spikelets in ventral and dorsal views.
5465969 sticky sprangletop Leptochloa viscida Lateral view of an immature spikelet with five florets (top) and three pairs of empty glumes on an inflorescence stalk (bottom).
5464470 Mediterranean barley Hordeum marinum ssp. gussonianum Disseminule with fertile floret in dorsal view. Labeled.
5464522 wall barley Hordeum murinum ssp. murinum Three disseminules, each consisting of multiple spikelets and florets.
5464520 wall barley Hordeum murinum ssp. murinum Disseminule with fertile floret in dorsal view.
5464519 wall barley Hordeum murinum ssp. murinum Disseminule with fertile floret in dorsal view. Labeled.
5464508 leporinum barley Hordeum murinum ssp. leporinum Three disseminules, each consisting of multiple spikelets and florets.
5464507 leporinum barley Hordeum murinum ssp. leporinum Disseminule with florets in ventral view. The rachis (to the left) was broken pulling the disseminule apart for a better view.
5464506 leporinum barley Hordeum murinum ssp. leporinum Disseminule with florets in ventral view. The rachis was broken pulling the disseminule apart for a better view. Labeled.
5464504 leporinum barley Hordeum murinum ssp. leporinum Disseminule in dorsal view. Labeled.
5464505 leporinum barley Hordeum murinum ssp. leporinum Disseminule in dorsal view.
5464482 smooth barley Hordeum murinum ssp. glaucum Three disseminules composed of multiple spikelets and florets.
5464480 smooth barley Hordeum murinum ssp. glaucum Disseminule with fertile floret in ventral view. Labeled.
5464481 smooth barley Hordeum murinum ssp. glaucum Disseminule with fertile floret in ventral view.
5464479 smooth barley Hordeum murinum ssp. glaucum Disseminule with fertile floret in dorsal view.
5464478 smooth barley Hordeum murinum ssp. glaucum Disseminule with fertile floret in dorsal view. Labeled.
5464472 Mediterranean barley Hordeum marinum ssp. gussonianum Disseminule with fertile floret in ventral view. Labeled.
5464473 Mediterranean barley Hordeum marinum ssp. gussonianum Disseminule with fertile floret in ventral view.
5464471 Mediterranean barley Hordeum marinum ssp. gussonianum Disseminule with fertile floret in dorsal view.
5464469 Mediterranean barley Hordeum marinum ssp. gussonianum Two disseminules with fertile floret in ventral view.
5464460 common velvetgrass Holcus lanatus Spikelet in lateral view. Note the purple coloring over the glume veins as well as the short awn on the upper glume (top).
5464459 common velvetgrass Holcus lanatus The sterile and fertile florets removed from the spikelet. Note the long callus hairs.
5464456 common velvetgrass Holcus lanatus Spikelets in lateral view.
5463803 prairie cupgrass Eriochloa contracta Spikelet in dorsal (left) and ventral (right) views.
5463802 prairie cupgrass Eriochloa contracta Mature spikelets.
5463798 tapertip cupgrass Eriochloa acuminata var. acuminata Spikelets still attached to inflorescence.
5463796 tapertip cupgrass Eriochloa acuminata var. acuminata Spikelet in dorsal view, showing upper glume.
5463790 India lovegrass Eragrostis pilosa Intact spikelet, close-up.
5463789 India lovegrass Eragrostis pilosa Intact spikelet, close-up. Labeled.
5463787 India lovegrass Eragrostis pilosa Two intact spikelets, one spikelet pedicel with persistent rachillas after florets have detached, one disseminule with palea and lemma, two disseminules with lemma only, and two loose caryopses.
5463782 tufted lovegrass Eragrostis pectinacea Top of a spikelet. The persistent paleas near the base reflect the acropetal disarticulation of disseminules.
5463778 little lovegrass Eragrostis minor Spikelets with glandular rings on their pedicels. Lateral veins of lemmas are green and ribbed.
5463777 little lovegrass Eragrostis minor Spikelets with glandular rings on their pedicels. Lateral veins of lemmas are green and ribbed. Labeled.
5463770 Mexican lovegrass Eragrostis mexicana Spikelet with glumes and basal disseminule missing.
5463764 weeping lovegrass Eragrostis curvula Spikelet tip with two fertile florets still attached. Note that the brown caryopses can be seen through the ± translucent lemmas.
5463755 stinkgrass Eragrostis cilianensis Remnant of the top of a spikelet. Note long cilia on palea veins.
5463751 Mediterranean lovegrass Eragrostis barrelieri Top of a mature spikelet.
5463737 early watergrass Echinochloa oryzoides Outer bracts (glumes and sterile lemma) removed to reveal sterile palea and fertile floret.
5463734 early watergrass Echinochloa oryzoides Spikelets in various views. The upper glume is easily broken off of this disseminule and therefore may be missing.
5463732 early watergrass Echinochloa oryzoides Spikelet in lateral view. Labeled.
5463733 early watergrass Echinochloa oryzoides Spikelet in lateral view.
5463725 rough barnyardgrass Echinochloa muricata var. microstachya Spikelet in dorsal view.
5463723 rough barnyardgrass Echinochloa muricata var. microstachya Spikelets in ventral view.
5463724 rough barnyardgrass Echinochloa muricata var. microstachya Outer bracts (glumes and sterile lemma) removed to reveal sterile palea and fertile floret.
5463720 gulf cockspur Echinochloa crus-pavonis Outer bracts (glumes and sterile lemma) removed to reveal sterile palea and fertile floret.
5463719 gulf cockspur Echinochloa crus-pavonis Spikelets in various views.
5463716 gulf cockspur Echinochloa crus-pavonis Spikelet in ventral view.
5463715 barnyardgrass Echinochloa crus-galli Outer bracts removed to reveal sterile palea and fertile floret.
5463714 barnyardgrass Echinochloa crus-galli Spikelet in ventral view.
5463713 barnyardgrass Echinochloa crus-galli Lateral view of a spikelet with an awned sterile lemma. The upper glume is easily broken off of this disseminule and therefore may be missing from the disseminule.
5463697 junglerice Echinochloa colona Outer bracts (glumes and sterile lemma) removed to reveal sterile palea and fertile floret.
5463696 junglerice Echinochloa colona Spikelets in various views, some with purple coloring.
5463695 junglerice Echinochloa colona Close-up of spikelet in two views.
5462910 large crabgrass Digitaria sanguinalis Spikelets in ventral view.
5462908 large crabgrass Digitaria sanguinalis Spikelets in dorsal view.
5462909 large crabgrass Digitaria sanguinalis Mature spikelets, some in ventral view (showing lower glume and sterile lemma) and some in dorsal view (showing upper glume and fertile lemma). One floret (top right) in ventral view, showing palea and fertile lemma edges.
5462904 smooth crabgrass Digitaria ischaemum Spikelet in ventral view showing sterile lemma.
5462903 smooth crabgrass Digitaria ischaemum Spikelets, most in dorsal view, showing upper glume and a bit of the tip of the fertile lemma.
5462019 field sandbur Cenchrus spinifex Spikelet with the spiny cupule removed.
5462015 field sandbur Cenchrus spinifex Disseminule (cupule of fused bristles surrounding spikelets). Base at bottom.
5462014 field sandbur Cenchrus spinifex Disseminule (cupule of fused bristles surrounding spikelets).
5462013 field sandbur Cenchrus spinifex Close-up view of the disseminule reveals one of the spikelets enclosed by the spiny cupule.
5462012 longspine sandbur Cenchrus longispinus Spikelet with the spiny cupule removed. During dissection the lower glume often detaches from the spikelet.
5462011 longspine sandbur Cenchrus longispinus Spikelet with the spiny cupule removed. During dissection the lower glume often detaches from the spikelet.
5462005 longspine sandbur Cenchrus longispinus Spikelets surrounded by a spiny cupule form the disseminule. Labeled.
5462003 longspine sandbur Cenchrus longispinus Spikelets surrounded by a spiny cupule form the disseminule. Labeled.
5462004 longspine sandbur Cenchrus longispinus Spikelets surrounded by a spiny cupule form the disseminule. Base at bottom.
5444798 Chilean chess Bromus berteroanus Empty glumes.
5444774 creeping bentgrass Agrostis stolonifera Spikelets detached from inflorescence.
5387365 tall fescue Festuca arundinacea spikelets.
5387403 cereal rye Secale cereale spikelets.
5387348 Mexican lovegrass Eragrostis mexicana ssp. virescens spikelets.
5387147 little quakinggrass Briza minor spikelets.
5387332 Mediterranean lovegrass Eragrostis barrelieri spikelets.
5387196 rattlesnake brome Bromus briziformis spikelets.
5387343 Lehmann lovegrass Eragrostis lehmanniana spikelets.
5387123 slender oat Avena barbata spikelets.
5387083 barb goatgrass Aegilops triuncialis spikelets.
5386225 smilograss Piptatherum miliaceum spikelets.
1459056 bermudagrass Cynodon dactylon Sessile spikelets
5387471 early watergrass Echinochloa oryzoides spikelets on inflorescence branch.
5389751 wavyleaf basketgrass Oplismenus hirtellus ssp. undulatifolius spikelets, individual florets have long awns.
0015027 Chinese sprangletop Leptochloa chinensis spikelets with 5-6 florets; upper florets of the spikelet smaller than lower ones; florets 1.3-2 mm long X 0.4-0.55 mm wide
5391886 sweet vernalgrass Anthoxanthum odoratum Spikelets
5391887 sweet vernalgrass Anthoxanthum odoratum Spikelets
5387528 reed canarygrass Phalaris arundinacea spikelets on inflorescence branches.
0015012 longstamen rice Oryza longistaminata Spikelets 7-9 mm long, ca. 2 mm wide
0015008 red rice Oryza punctata Spikelets 5-6.2 mm long, 1.9-2.6 mm wide
0015033 wild sugarcane Saccharum spontaneum Spikelets on the inflorescence are paired, one sessile and the other pedicellate; when separated, the sessile spikelet (illustrated) has attached pedicel and rachis segment; the pedicillate spikelets lack these structures. Spikelets are 3-7 mm long. Callus hairs are 2-3 times as long as the spikelet. There are long silky hairs on the rachis and pedicel; the upper margins of the glumes are ciliate.

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