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Range and rarity
Rare (≤ 5 counties)
A broader rarity slice: taxa known from five counties or fewer nationwide. Includes single-county endemics plus the next-most-restricted species.
- Matching taxa
- 9,281
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Showing 8,751–8,800 of 9,281.
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Thelypodiopsis shinnersii (M.C. Johnst.) Rollins THSHRio Grande tumblemustard · Brassicaceae -
Thelypodiopsis vaseyi (S. Watson ex B.L. Rob.) Rollins THVALas Vegas tumblemustard · Brassicaceae -
Thelypodium eucosmum B.L. Rob. THEUarrow-leaf thelypody · Brassicaceae -
Thelypodium howellii S. Watson ssp. spectabilis (M. Peck) Al-Shehbaz THHOS2Howell's thelypody · Brassicaceae -
Thelypodium repandum Rollins THRE2wavyleaf thelypody · Brassicaceae -
Thelypodium stenopetalum S. Watson THSTslenderpetal thelypody · Brassicaceae - Thelypodium tenue Rollins THTE3Big Bend thelypody · Brassicaceae
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Thelypodium texanum (Cory) Rollins THTE4Texas thelypody · Brassicaceae -
Thelypodium wrightii A. Gray ssp. oklahomense Al-Shehbaz THWROOklahoma thelypody · Brassicaceae -
Thelypteris augescens (Link) Munz & I.M. Johnst. THAUabrupttip maiden fern · Thelypteridaceae -
Thelypteris grandis A.R. Sm. THGRstately maiden fern · Thelypteridaceae -
Thelypteris opulenta (Kaulf.) Fosberg THOP2jeweled maiden fern · Thelypteridaceae -
Thelypteris patens (Sw.) Small ex R.P. St. John THPA5gridscale maiden fern · Thelypteridaceae - Thelypteris pilosa (M. Martens & Galeotti) Crawford THPI3softhairy maiden fern · Thelypteridaceae
- Thelypteris pilosa (M. Martens & Galeotti) Crawford var. alabamensis Crawford THPIAAlabama maiden fern · Thelypteridaceae
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Thelypteris resinifera (Desv.) Proctor THRE4resinous maiden fern · Thelypteridaceae -
Thelypteris reticulata (L.) Proctor THRE5latticevein fern · Thelypteridaceae -
Thelypteris sclerophylla (Poepp. ex Spreng.) Morton THSCstiff maiden fern · Thelypteridaceae -
Thelypteris tetragona (Sw.) Small THTE5freetip maiden fern · Thelypteridaceae -
Themeda quadrivalvis (L.) Kuntze THQUkangaroo grass · Poaceae -
Themeda quadrivalvis (L.) Kuntze var. helferi (Munro ex Hack.) Bor THQUHkangaroo grass · Poaceae -
Themeda quadrivalvis (L.) Kuntze var. quadrivalvis THQUQkangaroo grass · Poaceae -
Themeda triandra Forssk. THTR8kangaroo grass · Poaceae -
Themeda villosa (Poir.) A. Camus THVI2silky kangaroo grass · Poaceae -
Thermopsis californica S. Watson var. californica THCAC2California goldenbanner · Fabaceae -
Thermopsis californica S. Watson var. semota (Jeps.) C.J. Chen & B.L. Turner THCAS2California goldenbanner · Fabaceae -
Thermopsis macrophylla Hook. & Arn. THMA2Santa Inez goldenbanner · Fabaceae -
Thermopsis montana Nutt. var. hitchcockii (Isely) M. Mendenhall THMOHmountain goldenbanner · Fabaceae -
Thermopsis robusta Howell THRO4showy goldenbanner · Fabaceae - Thinopyrum junceiforme (Á. Löve & D. Löve) Á. Löve THJU3Russian wheatgrass · Poaceae
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Thismia americana N.E. Pfeiffer THAM2banded Trinity · Burmanniaceae -
Thladiantha dubia Bunge THDUManchu tubergourd · Cucurbitaceae -
Thrinax radiata Lodd. ex Schult. & Schult. f. THRA2Florida thatch palm · Arecaceae - Thuidium delicatulum (Hedw.) Schimp. THDE10delicate thuidium moss · Thuidiaceae
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Thunbergia erecta (Benth.) T. Anderson THERbush clockvine · Acanthaceae -
Thunbergia grandiflora Roxb. THGR3Bengal trumpet · Acanthaceae -
Thunbergia laurifolia Lindl. THLA6laurel clockvine · Acanthaceae -
Thymophylla aurea (A. Gray) Greene ex Britton var. polychaeta (A. Gray) Strother THAUPmanyawn pricklyleaf · Asteraceae -
Thymophylla concinna (A. Gray) Strother THCO10Sonoran pricklyleaf · Asteraceae -
Thymophylla pentachaeta (DC.) Small var. hartwegii (A. Gray) Strother THPEHHartweg's pricklyleaf · Asteraceae -
Thymophylla tenuiloba (DC.) Small var. treculii (A. Gray) Strother THTET3Trecul's pricklyleaf · Asteraceae -
Thymophylla tephroleuca (S.F. Blake) Strother THTE8ashy pricklyleaf · Asteraceae - Thymus kosteletzkyanus Opiz THKOEurasian thyme · Lamiaceae
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Thymus vulgaris L. THVUgarden thyme · Lamiaceae -
Thysanocarpus conchuliferus Greene THCO9Santa Cruz Island fringepod · Brassicaceae -
Tibouchina herbacea (DC.) Cogn. TIHE2herbaceous glorytree · Melastomataceae -
Tibouchina longifolia (Vahl) Baill. ex Cogn. TILOlongleaf glorytree · Melastomataceae -
Tibouchina urvilleana (DC.) Cogn. TIURprincess-flower · Melastomataceae -
Tidestromia carnosa (Steyerm.) I.M. Johnst. TICA2fleshy honeysweet · Amaranthaceae - Tidestromia gemmata I.M. Johnst. TIGETrans-Pecos honeysweet · Amaranthaceae