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USDA Animal and Plant Health Inspection Service (APHIS)

USDA Animal and Plant Health Inspection Service (APHIS)

The Animal and Plant Health Inspection Service is a multi-faceted Agency with a broad mission area that includes protecting and promoting U.S. agricultural health, regulating genetically engineered organisms, administering the Animal Welfare Act and carrying out wildlife damage management activities. These efforts support the overall mission of USDA, which is to protect and promote food, agriculture, natural resources and related issues.

To protect agricultural health, APHIS is on the job 24 hours a day, 7 days a week working to defend America’s animal and plant resources from agricultural pests and diseases. In the event that a pest or disease of concern is detected, APHIS implements emergency protocols and partners with affected States to quickly manage or eradicate the outbreak. This aggressive approach has enabled APHIS to successfully prevent and respond to potential pest and disease threats to U.S. agriculture.

Remove Filters: Plants(X) Spikelet(s)(X)
47 Images of 28 Subjects View Subject List View Image Details View Thumbnails

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Image Subject Name Scientific Name Description
5376421 African couchgrass Digitaria abyssinica Inflorescence. FNW taxon.  
5376424 velvet fingergrass Digitaria velutina Spikelets. 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.
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.
5376422 Jamaican crabgrass Cuscuta horizontalis Portion of inflorescence showing spikelets. Similar to an FNW taxon.
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.
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
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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