Aceraceae GH: 01794149 Acer saccharum Marshall USA: Arkansas Limestone cliffs northeast of White River at... R. D. Thomas 20567 1970-8-6
Aizoaceae GH: 01860085 Sesuvium maritimum (Walter) Britton, Sterns & Poggenburg USA: Louisiana south of Point Chen R. D. Thomas 19691 1970-6-27
GH: 01860140 Sesuvium portulacastrum (Linnaeus) Linnaeus USA: Louisiana Beach of Gulf of Mexico, 9 miles west of Hol... R. D. Thomas and family 24588 1971-8-22
GH: 01860268 Trianthema portulacastrum Linnaeus USA: Louisiana Beside railroad tracks behind Windsor Marine... R. D. Thomas 17442 1969-11-14
Anacardiaceae GH: 01866515 Cotinus obovatus Rafinesque USA: Arkansas Beside Ark. 58 just northeast of Guion, Ark.... R. D. Thomas 19975 1970-7-16
Apocynaceae GH: 02180645 Amsonia rigida Shuttleworth USA: Louisiana Beside U.S. 167 just south of Tannehill, Sec... R. D. Thomas 60406 1978-9-7
GH: 00914478 Apocynum cannabinum Linnaeus USA: Louisiana along La. 572, 4 miles east of Bayou Macon B... R. D. Thomas 76128 1981-5-6
GH: 02179861 Apocynum cannabinum Linnaeus USA: Louisiana Beside Old Sterlington Road and railroad jus... R. D. Thomas 23419 1971-6-8
Araceae GH: 01634025 Acorus calamus Linnaeus USA: Louisiana Small pond beside Business Route U.S. 165S a... R. D. Thomas 41083 1974-8-5
Aristolochiaceae GH: 01681886 Aristolochia tomentosa Sims USA: Louisiana [data not captured] R. D. Thomas 28480 1972-4-30
Asteraceae GH: 02215033 Bigelowia nuttallii L. C. Anderson USA: Louisiana [data not captured] R. D. Thomas 25750 1971-9-22
GH: 02215031 Bigelowia nuttallii L. C. Anderson USA: Louisiana [data not captured] R. D. Thomas [data not captured] 73843 2337 1980-10-4
GH: 02215030 Bigelowia nuttallii L. C. Anderson USA: Louisiana [data not captured] R. D. Thomas [data not captured] 82097 1982-9-25
GH: 02215440 Brintonia discoidea (Elliott) Greene USA: Louisiana [data not captured] R. D. Thomas 74619 1980-10-31
GH: 02579328 Chaptalia tomentosa Ventenat USA: Mississippi Jackson: Horn Island, Mississippi Sound, Gul... R. D. Thomas 6986 1968-4-10
GH: 02215839 Chloracantha spinosa (Bentham) G. L. Nesom USA: Louisiana [data not captured] R. D. Thomas 82616 1982-10-30
GH: 02142817 Crepis pulchra Linnaeus USA: Louisiana [data not captured] R. D. Thomas 80752 1982-4
GH: 02204975 Doellingeria sericocarpoides Small USA: Louisiana [data not captured] R. D. Thomas 74407 1980-10-25
GH: 02352835 Erigeron procumbens (Miller) G. L. Nesom USA: Louisiana [data not captured] R. D. Thomas 81336 1982-5-25
GH: 01833390 Hypochaeris glabra Linnaeus USA: Louisiana [data not captured] R. D. Thomas 64744 1979-5-23
GH: 01833352 Hypochaeris microcephala albiflora (Kuntze) Cabrera USA: Louisiana [data not captured] R. D. Thomas 43548 1975-4-29
Betulaceae A: 02071170 Carpinus caroliniana Walter USA: Louisiana [data not captured] R. D. Thomas 12986 1969-4-1
GH: 02071675 Corylus americana Walter USA: Louisiana [data not captured] R. D. Thomas [data not captured] 22466 1971-2-28
A: 02071672 Corylus americana Walter USA: Louisiana [data not captured] R. D. Thomas [data not captured] 17504 1970-2-27
GH: 02103096 Corylus cornuta Marshall USA: Tennessee [data not captured] R. D. Thomas 73384 1980-9-25
Boraginaceae A: 01995493 Lappula sp. USA: Arkansas Beside Polk Bayou, N. of road from Cushman t... R. D. Thomas 15227 1969-7-21
Brassicaceae A: 01097550 Cakile edentula (Bigelow) Hooker USA: Mississippi [data not captured] R. D. Thomas 6952 1968-4-10
GH: 00983536 Cardamine flagellifera O. E. Schulz USA: Tennessee [data not captured] R. D. Thomas 71035 1980-4-23
GH: 00983600 Cardamine hirsuta Linnaeus USA: Louisiana [data not captured] R. D. Thomas 22432 1971-2-24
GH: 00983635 Cardamine hirsuta Linnaeus USA: Tennessee [data not captured] R. D. Thomas 28163 1972-4-3
A: 00999098 Cardamine parviflora arenicola (Britton) O. E. Schulz USA: Louisiana [data not captured] R. D. Thomas 17507 1970-3-1
GH: 00999436 Cardamine pensylvanica Muhlenberg ex Willdenow USA: Louisiana [data not captured] R. D. Thomas 22546 1971-3-16
GH: 01087629 Chorispora tenella (Pallas) de Candolle USA: Louisiana [data not captured] R. D. Thomas 65096 1979-5-29
GH: 01103651 Draba brachycarpa Nuttall USA: Louisiana [data not captured] R. D. Thomas 6388 1968-2-25
GH: 01548519 Lepidium didymum Linnaeus USA: Louisiana [data not captured] R. D. Thomas 22728 1971-4-12
GH: 01736421 Streptanthus squamiformis Goodman USA: Oklahoma Cedar Bluff Mountain Nature Trail in Beavers... R. D. Thomas [data not captured] 75466 & 2602 1981-4-11
Caesalpiniaceae GH: 01852317 Chamaecrista fasciculata (Michaux) Greene USA: Texas beside I-30 between Texas 105 exit and Lake ... R. D. Thomas 25166 1971-9-11
GH: 01852475 Chamaecrista nictitans (Linnaeus) Moench USA: Arkansas NW slope and creek banks near Chinn Spring, ... R. D. Thomas 20494 1970-8-3
GH: 01676744 Gymnocladus dioicus (Linnaeus) K. Koch USA: Arkansas Beside Ark. 14 at Sylamore Creek, Allison R. D. Thomas 19971 1970-7-14
Ceratophyllaceae GH: 02073278 Ceratophyllum demersum Linnaeus USA: Louisiana [data not captured] R. D. Thomas 13704 1969-5-16
GH: 02073277 Ceratophyllum demersum Linnaeus USA: Louisiana [data not captured] R. D. Thomas 40244 1974-7-24
Chenopodiaceae GH: 01784071 Cycloloma atriplicifolium (Sprengel) J. M. Coulter USA: Louisiana [data not captured] R. D. Thomas 67500, 1602 1979-9-14
GH: 01785474 Suaeda linearis (Elliott) Moquin-Tandon USA: Louisiana [data not captured] R. D. Thomas 82646 1982-10-31
Crassulaceae GH: 01871875 Crassula longipes (Rose) Bywater & Wickens USA: Louisiana Field beside Horseshoe Lake, 8 mi. NNW of Co... R. D. Thomas 17939 1970-4-5
Cupressaceae A: 02106735 Juniperus virginiana Linnaeus USA: Louisiana [data not captured] R. D. Thomas 6254 1968
A: 02106734 Juniperus virginiana Linnaeus USA: Louisiana [data not captured] R. D. Thomas 6521 1968-3-25
Cyperaceae GH: 02394238 Carex crus-corvi Shuttleworth USA: Louisiana [data not captured] R. D. Thomas 28996 1972-5-5
Droseraceae GH: 01143512 Drosera brevifolia Pursh USA: Louisiana Near Area 7 of Cheniere Lake, west of West M... R. D. Thomas 13752 1969-5-16
GH: 01143813 Drosera intermedia Hayne USA: Louisiana Beside Lawrence Creek north of La. 10 2 mile... R. D. Thomas 40391 1974-7-27
Dysphaniaceae GH: 01784218 Dysphania ambrosioides (Linnaeus) Mosyakin & Clemants USA: Louisiana [data not captured] R. D. Thomas 26098 1971-9-30
Ericaceae GH: 01593170 Gaylussacia mosieri Small USA: Louisiana west of La. 21 one mile north of Angie, Sec.... R. D. Thomas 81169 1982-5-24
GH: 01718130 Lyonia lucida (Lamarck) K. Koch USA: Mississippi beside Miss. 35, 1 mile south of Sandy Hook. R. D. Thomas 19608 1970-6-26
GH: 01718291 Lyonia mariana (Linnaeus) D. Don USA: Louisiana along Myrtis Mill Creek, 3 1/2 miles S. of L... R. D. Thomas 33683 1974-11-7
GH: 00310702 Monotropsis odorata Schweinitz USA: Tennessee Pinus rigida forest along crest of Bearwallo... R. D. Thomas 18201 1970-4-25
GH: 00310705 Monotropsis odorata Schweinitz USA: Tennessee Pinus rigida woods on summit of Bear Wallow ... R. D. Thomas 22859 1971-4-20
Fabaceae GH: 01881490 Centrosema virginianum (Linnaeus) Bentham USA: Arkansas Cliffs north of railroad and White River, 1/... R. D. Thomas 20512 1970-8-4
GH: 02087072 Lespedeza hirta (Linnaeus) Hornemann USA: Arkansas Oak woods near junction of roads from Lock a... R. D. Thomas 20448 1970-8-1
A: 02177718 Lupinus perennis Linnaeus USA: Alabama [data not captured] R. D. Thomas 6880 1968-4-8
GH: 02129149 Lupinus villosus Willdenow USA: Louisiana [data not captured] R. D. Thomas 18584 1970-5-9
GH: 02129846 Medicago minima Linnaeus & Desrousseaux USA: Louisiana [data not captured] R. D. Thomas 64465 1979-5-15
GH: 02129870 Medicago orbicularis (Linnaeus) Bartalini USA: Louisiana [data not captured] R. D. Thomas [data not captured] 51921,3031 1977-5-2
GH: 02131924 Pediomelum digitatum (Nuttall ex Torrey & A. Gray) J. W. Grimes USA: Louisiana [data not captured] R. D. Thomas 81392 1982-6-11
A: 02135968 Sesbania punicea (Cavanilles) Bentham USA: Louisiana [data not captured] R. D. Thomas [data not captured] 2750 1967-5-20
GH: 02137299 Tephrosia spicata (Walter) Torrey & A. Gray USA: Louisiana [data not captured] R. D. Thomas [data not captured] 60024 1978-8-15
GH: 02137992 Trifolium arvense Linnaeus USA: Louisiana [data not captured] R. D. Thomas [data not captured] 64419 1979-5-9
GH: 02342705 Trifolium dubium Sibthorp USA: Louisiana [data not captured] R. D. Thomas 22572 1971-3-22
GH: 02343277 Trifolium lappaceum Linnaeus USA: Louisiana [data not captured] R. D. Thomas 29195 1972-5-13
GH: 02344324 Trifolium vesiculosum Savi USA: Louisiana [data not captured] R. D. Thomas 65133 1979-5-29
A: 02347276 Vicia minutiflora D. Dietrich USA: Louisiana [data not captured] R. D. Thomas 1862 1967-3-19
GH: 02347272 Vicia minutiflora D. Dietrich USA: Louisiana [data not captured] R. D. Thomas [data not captured] 22587
GH: 02347477 Vicia tetrasperma (Linnaeus) Schreber USA: Louisiana [data not captured] R. D. Thomas [data not captured] 80480 1982-3-29
GH: 02347593 Vicia villosa varia (Host) Corbière USA: Louisiana [data not captured] R. D. Thomas 65455 1979-6-6
GH: 02347860 Zornia bracteata J. F. Gmelin USA: Louisiana [data not captured] R. D. Thomas 60591 1978-9-7
Gentianaceae GH: 02165737 Sabatia campestris Nuttall USA: Texas Right-of-way of I-20 East just west of rest ... R. D. Thomas [data not captured] 44628 1975-6-1
Juncaceae GH: 02400251 Juncus biflorus Elliott USA: Louisiana [data not captured] R. D. Thomas 81477 1982-6-14
GH: 02101118 Juncus capitatus Weigel USA: Oklahoma Along north roadbank of Oklahoma 3 just east... R. D. Thomas 128,791 1992-5-22
GH: 02101117 Juncus capitatus Weigel USA: Louisiana [data not captured] R. D. Thomas 129,099 1992-5-29
GH: 02101116 Juncus capitatus Weigel USA: Louisiana [data not captured] R. D. Thomas 128,633 1992-5-14
GH: 02101115 Juncus capitatus Weigel USA: Louisiana [data not captured] R. D. Thomas 128,670 1992-5-22
GH: 02398044 Juncus repens Michaux USA: Louisiana [data not captured] R. D. Thomas 40876 1974-8-3
GH: 02398043 Juncus repens Michaux USA: Louisiana [data not captured] R. D. Thomas 40961 1974-8-3
Lamiaceae GH: 01580909 Agastache nepetoides (Linnaeus) Kuntze USA: Arkansas Northwest slope and creek bank near Chinn Sp... R. D. Thomas 20466 1970-8-3
A: 01555561 Clinopodium arkansanum (Nuttall) House USA: Arkansas Along Pine Hollow Rd, where it crosses Laffe... R. D. Thomas 7986 1968-6-6
Lentibulariaceae GH: 01975020 Utricularia inflata Walter USA: Louisiana At Waterside Park Subdivision, E. of Monroe. R. D. Thomas 18619 1970-5-11
Onagraceae GH: 01780299 Ludwigia peploides (Kunth) P. H. Raven USA: Kansas Crawford County State Lake Park beside U.S. ... R. D. Thomas 36574 1973-8-8
Orchidaceae GH: 02031497 Calopogon pallidus Chapman USA: Louisiana beside La. 36, 2.2 miles west of Hickory R. D. Thomas 81264 1982-5-25
GH: 01939167 Pteroglossaspis ecristata (Fernald) Rolfe USA: Louisiana near Tabor Road, SW of Georgetown. R. D. Thomas 21575 1970-10-4
Parnassiaceae GH: 01855138 Lepuropetalon spathulatum Muhlenberg ex Elliott USA: Texas beside I-20 E of Canton, Texas at jct. of Fa... R. D. Thomas 22392 1971-2-21
Plantaginaceae GH: 01046361 Bacopa egensis (Poeppig) Pennell USA: Louisiana [data not captured] R. D. Thomas 33172 1972-10-12
A: 01046362 Bacopa egensis (Poeppig) Pennell USA: Louisiana [data not captured] R. D. Thomas 11977 1968-8-11
GH: 01046423 Bacopa monnieri (Linnaeus) Wettstein USA: Louisiana [data not captured] R. D. Thomas 74715 1980-11-1
GH: 00466659 Callitriche heterophylla Pursh USA: Arkansas Aquatic in Spring River at U. S. 63, Mammoth... R. D. Thomas 20434 1970-7-29
GH: 00466900 Callitriche nuttallii Torrey USA: Louisiana [data not captured] R. D. Thomas 17918 1970-4-3
GH: 02212827 Chaenorhinum minus (Linnaeus) Lange USA: Louisiana [data not captured] R. D. Thomas 65115 1979-5-29
GH: 02212826 Chaenorhinum minus (Linnaeus) Lange USA: Louisiana [data not captured] R. D. Thomas 80763 1982-5-2
GH: 01999959 Gratiola virginiana Linnaeus USA: Louisiana [data not captured] R. D. Thomas 38139 1974-3-15
GH: 01999958 Gratiola virginiana Linnaeus USA: Louisiana [data not captured] R. D. Thomas 21423 1970-10-1
GH: 02000775 Leucospora multifida (Michaux) Nuttall USA: Louisiana [data not captured] R. D. Thomas 26093 1971-9-30
GH: 02122907 Penstemon tenuis Small USA: Louisiana [data not captured] R. D. Thomas 80730 1982-4-28
GH: 01804332 Plantago wrightiana Decaisne USA: Louisiana [data not captured] R. D. Thomas 81310 1982-5-25
GH: 01804452 Scoparia dulcis Linnaeus USA: Louisiana [data not captured] R. D. Thomas 74802 1980-11-2
GH: 01805207 Veronica anagallis-aquatica Linnaeus USA: Arkansas [data not captured] R. D. Thomas 20430 1970-7-29
A: 01805251 Veronica anagallis-aquatica Linnaeus USA: Missouri [data not captured] R. D. Thomas 9721 1968-7-3
A: 01805454 Veronica arvensis Linnaeus USA: Louisiana [data not captured] R. D. Thomas 6414 1968-2-27
A: 01805992 Veronica peregrina Linnaeus USA: Louisiana [data not captured] R. D. Thomas 1739 1967-3-14
Poaceae GH: 01653843 Andropogon gerardi Vitman USA: Arkansas [data not captured] R. D. Thomas 20513 1970-8-4
GH: 01853071 Andropogon glomeratus (Walter) Britton, Sterns & Poggenburg USA: Louisiana [data not captured] R. D. Thomas 82373 1982-10-5
GH: 01813489 Arthraxon hispidus (Thunberg) Makino USA: Louisiana [data not captured] R. D. Thomas et. al. 5000 1967-9-30
GH: 01814459 Imperata brasiliensis Trinius USA: Louisiana [data not captured] R. D. Thomas 64029 1979-4-29
GH: 01814570 Rottboellia cochinchinensis (Loureiro) W. D. Clayton USA: Louisiana [data not captured] R. D. Thomas 72321 1980-7-31
Polemoniaceae GH: 01104107 Ipomopsis longiflora (Torrey) V. E. Grant USA: Oklahoma beside Okla. 74, north bank of Cimarron Rive... R. D. Thomas [data not captured] 21695 1970-10-9
GH: 01104339 Ipomopsis rubra (Linnaeus) Wherry USA: Texas beside I-20 west of Winona, east of Fm. Rd. ... R. D. Thomas [data not captured] 23214 1971-5-22
Polygonaceae GH: 02362469 Persicaria pensylvanica (Linnaeus) M. Gomez USA: Louisiana [data not captured] R. D. Thomas [data not captured] 26867 1971-10-29
GH: 02362655 Persicaria punctata (Elliott) Small USA: Arkansas [data not captured] R. D. Thomas [data not captured] 112708 1989-9-15
GH: 02362794 Persicaria punctata (Elliott) Small USA: Louisiana [data not captured] R. D. Thomas [data not captured] 26883 1971-10-29
GH: 02361464 Polygonum americanum (Fischer & C. A. Meyer) T. M. Schuster & Reveal USA: Louisiana [data not captured] R. D. Thomas 25965 1971-9-26
GH: 02006288 Rumex acetosella Linnaeus USA: Louisiana [data not captured] R. D. Thomas 13753 1969-5-19
Pontederiaceae A: 01919064 Heteranthera dubia MacMillan USA: Arkansas Buffalo River at Ark. 14, S. of Yellville R. D. Thomas 16144 1969-8-4
Ranunculaceae GH: 01658552 Delphinium carolinianum Walter USA: Arkansas E. of ark. 8, Sec. 13, T13S, R9W, Geocarpon ... R. D. Thomas 18669 1970-5-16
A: 01661467 Hydrastis canadensis Linnaeus USA: Arkansas Woods beside Polk Bayou, 6 mi. E. of Cushman... R. D. Thomas 8251 1968-6-10
Rosaceae GH: 00994258 Gillenia stipulata (Muhlenberg ex Willdenow) Nuttall USA: Arkansas Beside Ark. 81, 3 miles N. of Lacey-pine woo... R. D. Thomas 18760 1970-5-16
GH: 00247869 Pyrus communis Linnaeus USA: Louisiana Old homestead in pine woods beside La. 139 n... R. D. Thomas 22550 1971-3-16
Rubiaceae GH: 02359024 Galium aparine Linnaeus USA: Louisiana [data not captured] R. D. Thomas 128,657 1992-5-22
GH: 02359020 Galium aparine Linnaeus USA: Louisiana [data not captured] R. D. Thomas 128,657 1992-5-22
A: 02358441 Galium arkansanum A. Gray USA: Arkansas [data not captured] R. D. Thomas 8925 1968-6-20
GH: 02358426 Galium arkansanum A. Gray USA: Arkansas [data not captured] R. D. Thomas 20454 1970-8-1
GH: 02358893 Mitracarpus hirtus (Linnaeus) de Candolle USA: Louisiana [data not captured] R. D. Thomas 69000 1979-10-19
Sapindaceae GH: 01869620 Cardiospermum halicacabum Linnaeus USA: Texas Eastern edge of Lake Ray Hubbard Beside I-30... R. D. Thomas 25147 1971-9-11
Simaroubaceae GH: 02168501 Leitneria floridana Chapman USA: Arkansas on Bayou Meta Game Management Area east of W... R. D. Thomas [data not captured] 44275 1975-5-25
Urticaceae GH: 02171037 Urtica chamaedryoides Pursh USA: Louisiana [data not captured] R. D. Thomas 22369 1971-2-16
