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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.

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Image Subject Name Scientific Name Description
5376346 orbicular whitetop Lepidium chalepense Fruits. FNW taxon.
5376344 orbicular whitetop Lepidium chalepense Seeds. Hilum at bottom. FNW taxon.
5376305 alectra Alectra sessiliflora Six testa envelopes containing one seed each. FNW taxon.
5376306 alectra Alectra sessiliflora Two testa envelopes containing one seed each. FNW taxon.
5376301 yerba de hierro Melasma melampyroides Six testa envelopes containing one seed each. FNW taxon.
5376303 yerba de hierro Melasma melampyroides Testa-covered seeds. FNW taxon.
5376304 yerba de hierro Melasma melampyroides Two testa envelopes containing one seed each. FNW taxon.
5376302 yerba de hierro Melasma melampyroides Two testa envelopes containing one seed each. FNW taxon.
5376300 alectra Alectra sessiliflora Seeds without testa envelope intact. FNW taxon.
5376299 alectra Alectra sessiliflora Seeds with testa envelope intact. FNW taxon.
5376352 hoary cress Lepidium draba Seeds. Hilum at bottom. FNW taxon.
5376353 hoary cress Lepidium draba Marginal view of two seeds. Hilum at bottom. FNW taxon.
5376421 African couchgrass Digitaria abyssinica Inflorescence. FNW taxon.  
5376424 velvet fingergrass Digitaria velutina Spikelets. FNW taxon.
5376425 velvet fingergrass Digitaria velutina Florets in dorsal (left) and ventral views. FNW taxon.
5376417 field dodder Cuscuta pentagona Fruits with perianth still attached. Similar to an FNW taxon.
5376418 smallseed alfalfa dodder Cuscuta approximata Seeds. Similar to an FNW taxon.
5376412 Japanese dodder Cuscuta japonica Seeds. FNW taxon.
5376377 commelina Commelina coelestis Seeds. Similar to an FNW taxon.
5376318 barwaq Asphodelus tenuifolius Seeds. Similar to an FNW taxon.
5376639 mesquite Prosopis burkartii Seed, hilum at bottom. FNW taxon.
5376600 duck-lettuce Ottelia alismoides Seeds. FNW taxon.
5376584 clustered broomrape Orobanche fasciculata Seeds. Similar to an FNW taxon.
5376585 ivy broomrape Orobanche hederae Seeds. FNW taxon.
5376586 broomrape Orobanche loricata Seeds. FNW taxon.
5376587 small broomrape Orobanche minor Seeds. FNW taxon.
5376588 small broomrape Orobanche minor Fruit surrounded by tiny seeds. FNW taxon.
5376589 branched broomrape Orobanche ramosa Seeds. FNW taxon.
5376578 Egyptian broomrape Orobanche aegyptiaca Seeds. FNW taxon.
5376579 California broomrape Orobanche californica Seeds. Similar to an FNW taxon.
5376581 nodding broomrape Orobanche cernua Seeds. FNW taxon.
5376582 desert broomrape Orobanche cooperi Seeds. Similar to an FNW taxon.
5376583 crenate broomrape Orobanche crenata Seeds. FNW taxon.
5376574 ivy broomrape Orobanche hederae Seeds. FNW taxon.
5376573 clustered broomrape Orobanche fasciculata Seeds. FNW taxon.
5376565 serrated tussock Nassella trichotoma Florets. FNW taxon.
5376566 serrated tussock Nassella trichotoma Spikelet (left) and floret. FNW taxon.
5376567 serrated tussock Nassella trichotoma Caryopses in lateral view. FNW taxon.
5376568 serrated tussock Nassella trichotoma Caryopsis in ventral (left) and dorsal (right) views. FNW taxon.
5376541 climbing hempweed Mikania scandens Fruits. Similar to an FNW taxon.
5376543 giant sensitiveplant Mimosa diplotricha Some variation in seeds. FNW taxon.
5376538 mile-a-minute Mikania micrantha Three fruits. FNW taxon.
5376540 climbing hempweed Mikania scandens Fruits. Similar to an FNW taxon.
5376534 African mile-a-minute Mikania cordata Fruit. FNW taxon.
5376525 Banks melastoma Melastoma malabathricum Sectioned fruit showing seeds. FNW taxon.
5376524 Banks melastoma Melastoma malabathricum Intact fruit. FNW taxon.
5376635 bitter mesquite Prosopis articulata Seeds. Hilum at bottom. FNW taxon.
5376470 cape tulip Moraea collina Close-up of the surface of seeds. FNW taxon.
5376469 cape tulip Moraea collina Seeds. FNW taxon.
5376319 barwaq Asphodelus tenuifolius Dorsal view of seeds. Similar to an FNW taxon.
5376317 barwaq Asphodelus tenuifolius Lateral view (top) and ventral view (bottom) of seeds. Similar to an FNW taxon.
5376875 Texas millet Urochloa texana Left: florets in dorsal and ventral view. Right: fruits in ventral and dorsal view. Similar to an 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.
5376463 common cowparsnip Heracleum maximum Fruits; ventral face of mericarp on right. Similar to an FNW taxon.
5376462 burroweed Isocoma veneta Fruits. Similar to an FNW taxon.
5376461 shrine jimmyweed Isocoma tenuisecta Fruits. Similar to an FNW taxon.
5376870 coat buttons Tridax procumbens Fruits with pappus attached. FNW taxon.
5376868 witchweed Striga asiatica Seeds. FNW taxon.
5376867 purple witchweed Striga hermonthica Seeds. FNW taxon.
5376866 cowpea witchweed Striga gesnerioides Seeds. FNW taxon.
5376865 giant mealie witchweed Striga forbesii Seeds. FNW taxon.
5376863 witchweed Striga aspera Seeds. FNW taxon.
5376864 witchweed Striga euphrasioides Seeds. FNW taxon.
5376852 broadleaf buttonweed Spermacoce alata Dorsal view of seeds. FNW taxon.
5376851 giant burreed Sparganium eurycarpum Fruits. Similar to an FNW taxon.
5376849 branched burreed Sparganium erectum Fruit. FNW taxon.
5376847 branched burreed Sparganium erectum Fruits. FNW taxon.
5376845 sudangrass Sorghum bicolor ssp. drummondii Caryopses in dorsal view (left and middle) and ventral view (right). Similar to an FNW taxon.
5376844 sudangrass Sorghum bicolor ssp. drummondii Spikelets in ventral view. Similar to an FNW taxon.
5376842 johnsongrass Sorghum halepense Caryopses in dorsal view (left) and ventral view (right). 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.
5376835 sorghum-almum Sorghum almum Caryopses in dorsal view (left and middle) and ventral view (right). Similar to an FNW taxon.
5376833 annual sowthistle Sonchus oleraceus Fruits, one with pappus still attached. Similar to an FNW taxon.
5376831 perennial sowthistle Sonchus arvensis Fruits without attached pappus, apex at top. FNW taxon.
5376827 perennial sowthistle Sonchus arvensis Fruit with pappus. FNW taxon.
5376822 tropical soda apple Solanum viarum Seeds. FNW taxon.
5376817 wetland nightshade Solanum tampicense Seed. FNW taxon.
5376816 wetland nightshade Solanum tampicense Seeds. FNW taxon.
5376811 silverleaf nightshade Solanum elaeagnifolium Fruit. Similar to an FNW taxon.
5376809 silverleaf nightshade Solanum elaeagnifolium Marginal view of seeds. Similar to an FNW taxon.
5376808 silverleaf nightshade Solanum elaeagnifolium Seeds. Similar to an FNW taxon.
5376803 yellow foxtail Setaria pumila Spikelets in dorsal view showing upper glume and lemma. Similar to an FNW taxon.
5376805 yellow foxtail Setaria pumila Spikelets in ventral view showing lower glume and sterile lemma. 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.
5376800 cattail grass Setaria pumila ssp. pallidefusca Caryopses in dorsal view (left) and ventral view (right). FNW taxon.
5376798 cattail grass Setaria pumila ssp. pallidefusca Spikelets in dorsal view. FNW taxon.
5376799 cattail grass Setaria pumila ssp. pallidefusca Florets in ventral view showing palea and margins of lemma. 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.
5376796 Mediterranean saltwort Salsola vermiculata Fruits with persistent calyx (i.e., wings). FNW taxon.
5376791 Mediterranean saltwort Salsola vermiculata Base of fruit. FNW taxon.
5376790 Mediterranean saltwort Salsola vermiculata Winged fruits. FNW taxon.
5376789 Russian-thistle Salsola tragus Winged fruits (from upper part of plant) with persistent calyx. Similar to an FNW taxon.
5376787 Russian-thistle Salsola tragus Fruits (from lower part of plant) with wings broken off, or with absent or reduced wings. Similar to an FNW taxon.
5376786 barbwire Russian-thistle Salsola paulsenii Fruits with persistent calyx, showing apex (left) and base (right). Similar to an FNW taxon.
5376785 Russian thistle Salsola kali Winged fruits. Similar to an FNW taxon.
5376784 Russian thistle Salsola kali Basal view of two fruits. Similar to an FNW taxon.
5376782 arrowhead Sagittaria sagittifolia Fruits, attachment scar at bottom. FNW taxon.
5376783 arrowhead Sagittaria sagittifolia Fruits, attachment scar at bottom. FNW taxon.
5376781 California arrowhead Sagittaria montevidensis Fruits, attachment scar at bottom. Similar to an 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.
5376774 sugarcane Saccharum officinarum Spikelet with pedicel and internode attached. Similar to an FNW taxon.
5376773 sugarcane Saccharum officinarum Spikelets in two views. Similar to an FNW taxon.
5376770 blackberry Rubus vulgaris Drupelets. FNW taxon.
5376768 California blackberry Rubus ursinus Drupelets. Similar to an FNW taxon.
5376763 salmonberry Rubus spectabilis Drupelets. Similar to an FNW taxon.
5376761 West Indian raspberry Rubus rosifolius Drupelets. Similar to an FNW taxon.
5376759 blackberry Rubus rosaceus Drupelets. FNW taxon.
5376757 shrubby blackberry Rubus plicatus Drupelets. FNW taxon.
5376754 Molucca raspberry Rubus moluccanus Drupelets. FNW taxon.
5376752 Molucca raspberry Rubus moluccanus Drupelets and style fragments. FNW taxon.
5376749 bristly dewberry Rubus hispidus Drupelets. Similar to an FNW taxon.
5376748 blackberry Rubus chloocladus Dorsal view of two drupelets. FNW taxon.
5376747 blackberry Rubus chloocladus Drupelets. FNW taxon.
5376745 Himalaya blackberry Rubus armeniacus Drupelets. FNW taxon.
5376744 Allegheny blackberry Rubus allegheniensis Dried aggregate fruit. Similar to an FNW taxon.
5376742 Allegheny blackberry Rubus allegheniensis Drupelets. Similar to an FNW taxon.
5376741 itchgrass Rottboellia selloana Portions of inflorescence (left) and four disseminules comprising internode, embedded spikelet, pedicel, +/– pedicellate spikelet (right). Similar to an FNW taxon.
5376740 itchgrass Rottboellia cochinchinensis Caryopsis in ventral (left) and dorsal (right) views. FNW taxon.
5376739 itchgrass Rottboellia cochinchinensis Inflorescence segments. FNW taxon.
5376737 itchgrass Rottboellia cochinchinensis Disseminules comprising internode with embedded spikelet and pedicel; far right: disseminule with pedicellate spikelet. FNW taxon.
5376723 albardon Prosopis sericantha Seeds, hilum at bottom. FNW taxon.
5376720 vinal Prosopis ruscifolia Seeds, hilum at bottom. FNW taxon.
5376708 tornillo Prosopis reptans var. cinerascens Seeds, hilum at bottom. Similar to an FNW taxon.
5376699 palo de hierro Prosopis palmeri Seeds, hilum at bottom. FNW taxon.
5376660 algarrobo patagonica Prosopis denudans Seeds, with hilum at bottom. FNW taxon.
5376647 cusqui Prosopis calingastana Seeds, hilum at bottom. FNW taxon.
5376618 kyasumagrass Pennisetum pedicellatum Fascicles of bristles enclosing one or more spikelets each. FNW taxon.
5376616 kyasumagrass Pennisetum pedicellatum Florets in dorsal view showing lemma (top row) and ventral view showing palea (bottom row). FNW taxon.
5376615 African feathergrass Pennisetum macrourum Spikelets singly and in clusters, each subtended by a fascicle of bristles. FNW taxon.
5376613 African feathergrass Pennisetum macrourum Ventral view of fertile floret showing margins of lemma enclosing palea (left); spikelet subtended by primary bristle showing upper glume and fertile lemma (right). FNW taxon.
5376612 African feathergrass Pennisetum macrourum Spikelet subtended by primary bristle, showing upper glume and fertile lemma. FNW taxon.
5376610 kikuyugrass Pennisetum clandestinum Left to right: two spikelets enclosed in leaf sheaths; three spikelets without leaf sheaths. FNW taxon.
5376611 kikuyugrass Pennisetum clandestinum Fruiting culm. FNW taxon.
5376609 kikuyugrass Pennisetum clandestinum Caryopses in dorsal view (top row) and ventral view (bottom row). FNW taxon.
5376622 mission grass Pennisetum polystachion Disseminule, which is a spikelet enclosed by a fascicle of bristles. FNW taxon.
5376608 ricegrass paspalum Paspalum scrobiculatum Spikelets and florets. FNW taxon.
5376606 ricegrass paspalum Paspalum scrobiculatum Dorsal view of florets showing lemma and remnants of the papery upper glume. FNW taxon.
5376607 ricegrass paspalum Paspalum scrobiculatum Ventral view of florets showing palea and margins of lemma, as well as remnants of the papery sterile lemma and upper glume. FNW taxon.
5376599 duck-lettuce Ottelia alismoides Partial dried fruit. 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.
5376597 brown-beard rice Oryza rufipogon Disseminules (floret + sterile lemmas) and caryopses. FNW taxon.
5376594 brown-beard rice Oryza rufipogon Disseminule. FNW taxon.
5376593 brown-beard rice Oryza rufipogon Disseminules in side view. FNW taxon.
5376592 brown-beard rice Oryza rufipogon Caryopses in side view. FNW taxon.
5376590 longstamen rice Oryza longistaminata Disseminules in side view. FNW taxon.
5376564 serrated tussock Nassella trichotoma Spikelets and empty glumes. FNW taxon.
5376545 giant sensitiveplant Mimosa diplotricha Seeds with clear pleurograms. FNW taxon.
5376530 red melastome Melastoma sanguineum Seeds. Similar to an FNW taxon.
5376529 Banks melastoma Melastoma malabathricum Infertile seeds. FNW taxon.
5376521 Banks melastoma Melastoma malabathricum Two sets of seeds with mature embryos. FNW taxon.
5376520 Banks melastoma Melastoma malabathricum Two sets of seeds without embryos. FNW taxon.
5376519 Banks melastoma Melastoma malabathricum Intact fruit (left) and opened fruit (right) showing numerous seeds. FNW taxon.
5376518 melaleuca Melaleuca quinquenervia Seeds. FNW taxon.
5376517 melaleuca Melaleuca quinquenervia Seeds. FNW taxon.
5376516 melaleuca Melaleuca hypericifolia Seeds. Similar to an FNW taxon.
5376515 melaleuca Melaleuca ericifolia Seeds. Similar to an FNW taxon.
5376506 limnophila Limnophila sessiliflora Fruit. FNW taxon.
5376503 mucronate sprangeltop Leptochloa panicea ssp. brachiata Caryopses in ventral (left) and dorsal (right) views. Similar to an FNW taxon.
5376502 mucronate sprangeltop Leptochloa panicea ssp. brachiata Portion of inflorescence. Similar to an FNW taxon.
5376500 mucronate sprangeltop Leptochloa panicea ssp. brachiata Florets in side view (left), caryopses in side view (right). Similar to an FNW taxon.
5376499 Chinese sprangletop Leptochloa chinensis Left to right: caryopses in ventral, dorsal, ventral and dorsal views. FNW taxon.
5376497 Chinese sprangletop Leptochloa chinensis Spikelets with glumes and without glumes (far left), florets in various views, and a caryopsis (upper right). 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.
5376492 swamp morningglory Ipomoea aquatica Seeds in various positions. FNW taxon.
5376490 swamp morningglory Ipomoea aquatica Ventral view of two seeds showing hilum. FNW taxon.
5376489 cogongrass Imperata cylindrica Spikelets. FNW taxon.
5376487 Brazilian satintail Imperata brasiliensis Spikelets and portion of inflorescence axis (far right). FNW taxon.
5376485 Brazilian satintail Imperata brasiliensis Spikelet. FNW taxon.
5376484 Brazilian satintail Imperata brasiliensis Two spikelets. FNW taxon.
5376482 miramar weed Hygrophila polysperma Seeds. FNW taxon.
5376481 miramar weed Hygrophila polysperma Dehisced fruit (seeds released). FNW taxon.
5376563 blue-tulip Moraea polystachya Seed surface. Similar to an FNW taxon.
5376562 blue-tulip Moraea polystachya Seeds. Similar to an FNW taxon.
5376480 cape tulip Homeria spp. Seeds. May be an FNW taxon.
5376458 goatsrue Galega officinalis Variation in seeds. FNW taxon.
5376445 spiny emex Emex spinosa Fruits with persistent perianth. FNW taxon.
5376444 three-cornered jack Emex australis Fruits with persistent perianth. FNW taxon.
5376604 western wheatgrass Pascopyrum smithii Close-up (left, dorsal view; right, lateral view) of base of lemma. Similar to an FNW taxon.
5376603 western wheatgrass Pascopyrum smithii Sinus and rachilla segment at base of florets. Similar to an FNW taxon.
5376602 western wheatgrass Pascopyrum smithii Florets in ventral (left) and dorsal view (far right). Similar to an FNW taxon.
5376443 quackgrass Elymus repens Floret bases showing bulge at base of lemma. FNW taxon.
5376442 quackgrass Elymus repens Spikelet. FNW taxon.
5376441 quackgrass Elymus repens Floret bases showing sinus and rachilla segment. FNW taxon.
5376440 quackgrass Elymus repens Florets in ventral (left) and dorsal view (far right). FNW taxon.
5376438 waterhyacinth Eichhornia crassipes Seeds with funiculus still attached. Similar to an 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.
5376422 Jamaican crabgrass Cuscuta horizontalis Portion of inflorescence showing spikelets. Similar to an FNW taxon.
5376415 field dodder Cuscuta pentagona Seeds. Similar to an FNW taxon.
5376409 largeseed dodder Cuscuta indecora Seeds. Similar to an FNW taxon.
5376407 dodder Cuscuta hyalina Seeds. FNW taxon.
5376404 swamp dodder Cuscuta gronovii Seeds. Similar to an FNW taxon.
5376402 clover dodder Cuscuta epithymum Seeds. Similar to an FNW taxon.
5376400 flax dodder Cuscuta epilinum Seeds. Similar to an FNW taxon.
5376398 Chinese dodder Cuscuta chinensis Seeds. FNW taxon.
5376399 Chinese dodder Cuscuta chinensis Close-up of hilum. FNW taxon.
5376396 Australian dodder Cuscuta australis Seeds. FNW taxon.
5376395 common crupina Crupina vulgaris Fruits with bristly pappus attached. FNW taxon.
5376389 crupina Crupina crupinastrum Fruits with bristly pappus attached. Similar to an FNW taxon.
5376342 hedge bindweed Calystegia sepium Various views of seeds, hilum at bottom. Similar to an FNW taxon.
5376387 dwarf morning-glory Convolvulus tricolor Side view (top) and ventral view (bottom) of seeds. Similar to an FNW taxon.
5376386 field bindweed Convolvulus arvensis Fruits, one with peduncle still attached. FNW taxon.
5376385 field bindweed Convolvulus arvensis Ventral view of seeds, hilum at bottom. FNW taxon.
5376383 field bindweed Convolvulus arvensis Hilum. FNW taxon.
5376384 field bindweed Convolvulus arvensis Detail of seed surface, hilum at right end. FNW taxon.
5376382 field bindweed Convolvulus arvensis Lateral view of seeds, hilum at bottom. FNW taxon.
5376376 Benghal dayflower Commelina benghalensis Subterranean seeds. FNW taxon.
5376375 Benghal dayflower Commelina benghalensis Aerial seeds?. FNW taxon.
5376372 bull thistle Cirsium vulgare Multiple view of fruits with apex at top. Similar to an FNW taxon.
5376371 yellowspine thistle Cirsium ochrocentrum Two views of fruits with apex at top. 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.
5376363 safflower Carthamus tinctorius Fruits, apex at top. Similar to FNW taxon.
5376357 hairy whitetop Lepidium appelianum Marginal view of seed, funiculus seen at bottom. FNW taxon.
5376356 hairy whitetop Lepidium appelianum Seeds. FNW taxon.
5376355 hairy whitetop Lepidium appelianum Silicles. FNW taxon.
5376338 sterile oat Avena sterilis Close-up of pegged bases of secondary florets. FNW taxon.
5376336 sterile oat Avena sterilis Ventral view of primary florets showing basal attachment scars. FNW taxon.
5376335 sterile oat Avena sterilis Secondary florets in ventral view (left) and dorsal view (right). FNW taxon.
5376330 wild oat Avena fatua Florets with apices and/or bases broken off. Similar to an FNW taxon.
5376329 wild oat Avena fatua Variation in floret size. Similar to an FNW taxon.
5376328 wild oat Avena fatua Caryopses in dorsal view (left) and ventral view (right). Similar to an FNW taxon.
5376327 wild oat Avena fatua Ventral view of florets showing basal attachment scar. Similar to an FNW taxon.
5376326 wild oat Avena fatua Ventral view of florets with basal scars broken off. Similar to an FNW taxon.
5376324 slender oat Avena barbata Three florets. Similar to an FNW taxon.
5376316 onionweed Asphodelus fistulosus Seeds in various positions. FNW taxon.
5376315 onionweed Asphodelus fistulosus Opened capsule with seeds missing. FNW taxon.
5376314 onionweed Asphodelus fistulosus One opened and two unopened fruits. FNW taxon.
5376310 onionweed Asphodelus fistulosus Dehisced capsule (left) and two unopened fruits (right). FNW taxon.
5376308 sessile joyweed Alternanthera sessilis Three fruits with perianth still attached. FNW taxon.
5376296 creeping croftonweed Ageratina riparia Fruits with pappus still attached. FNW taxon.
5376294 croftonweed Ageratina adenophora Fruits with pappus still attached. FNW taxon.
5376293 croftonweed Ageratina adenophora Fruit with apex (with partial pappus) at left. FNW taxon.
5376292 croftonweed Ageratina adenophora Fruits with apices at top. FNW taxon.
5376289 aeginetia Aeginetia spp. Seeds of an unidentified species of aeginetia. FNW taxon.
5376285 Russian knapweed Rhaponticum repens Fruits lying on one of their wider sides. Apex at top. 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.
0015040 Banks melastoma Melastoma malabathricum
0015032 cattail grass Setaria pumila ssp. pallidefusca lemma 2-2.8 mm in length
0015025 mesquite Prosopis ruizlealii seeds 6-8 mm long X 4-5 mm broad X 3-4 mm thick
0015026 mesquite Prosopis ruizlealii seeds one per endocarp segment; 6-8 mm long X 4-5 mm broad X 3-4 mm thick
0015018 alfombrilla Drymaria arenarioides seeds ca. 1 mm long X 0.8 mm broad
0015022 mile-a-minute Mikania micrantha achenes 1.5-2(3) mm in length, black, glabrous, 4- to 5- ribbed, surface sparingly glandular, persistent pappus of 32-38 barbellate, capillary bristles 2-3 mm long
0015023 African mile-a-minute Mikania cordata achenes 2-3 mm long, glabrous, 5-angled, surface finely grandular, with persistent pappus of 40-45 bristles 4-5 mm long
0015015 miramar weed Hygrophila polysperma Seeds ca. 0.6 mm long, ca. 0.5 mm wide
0015016 Mediterranean saltwort Salsola vermiculata fruit and attached perianth segments are 6-12 mm wide; seeds are ca. 2.5 mm
0015010 sessile joyweed Alternanthera sessilis Our descriptive literature says that A. sessilis is unique for the genus in that the tepals (perianth segments) are shorter than (rarely barely as long as) the heart-shaped, one-seeded fruit. This picture shows tepals which exceed the fruit in length.
0015011 broadleaf buttonweed Spermacoce alata Former genus was Borreria(i.e.-Borreria alata)
0015013 African boxthorn Lycium ferocessimum Seeds ca. 2.0-2.5 mm long, ca. 1.5-2.0 wide
0015014 catclaw mimosa Mimosa pellita Seeds 5-5.5 mm long, ca. 2.5 wide; pod segments 0.9-1.4 cm broad
0015024 common crupina Crupina vulgaris achenes subcylindrical, 3-5 mm long X 1.5-4 mm in diameter; persistent pappus of several rows of stiff, forwardly barbed bristles 4-10 mm long and an innermost row of scales ca. 1mm
0015004 onionweed Asphodelus fistulosus Seeds 3-3.5 mm in length
0015005 monochoria Monochoria vaginalis Seeds ca. 1 mm long, ca. 0.6 mm wide
0015006 arrowleaved monochoria Monochoria hastata Seeds ca. 0.7 mm long, ca. 0.5 mm wide
0015020 coat buttons Tridax procumbens achenes 1.5-2.5 mm long X 0.5-1 mm in diameter and densely ascending pubescent; persistent pappus of ca. 20 plumose bristles; bristles of ray achenes 0.5-2 mm in length, bristles of disc achenes alternatly longer and shorter, 3.5-6 mm in length
0015019 wild safflower Carthamus oxyacanthus Seeds 3-5.5 mm long X 2-3.5 mm wide X 1.5-2 mm thick
1148166 witchweed Striga spp. Infested corn roots vs Non-infested corn roots
1149164 branched broomrape Orobanche ramosa
1294022 British yellowhead Inula britannica
1149126 hydrilla Hydrilla verticillata
1149032 swamp morningglory Ipomoea aquatica
2186073 puncturevine Tribulus terrestris
2186059 pterocarpus Pterocarpus spp.
4387072 tropical soda apple Solanum viarum PPQ approved containment facility, Coastal Plain Experiment Station in Tifton, Georgia. Pot experiments testing several herbicides by Dr. Clyde Dowler
0015002 giant hogweed Heracleum mantegazzianum Mericarp (7)9-12 mm long x 6-8(10) mm broad, strongly flattened dorsally

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