Explore / Range and rarity / Single-county taxa
Range and rarity
Single-county taxa
Taxa documented in only a single county across the entire catalogue. Mostly local endemics, sub-rank curiosities, and rarely-collected outliers — the eccentric edge of the flora.
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Showing 3,151–3,200 of 3,373.
- Tectaria ×amesiana A.A. Eaton (pro sp.) [coriandrifolia × fimbriata] TEAMhalberd fern · Dryopteridaceae
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Teesdalia coronopifolia (Bergeret) Thell. TECO7lesser shepherdscress · Brassicaceae -
Tephroseris atropurpurea (Ledeb.) Holub ssp. atropurpurea TEATAarctic groundsel · Asteraceae -
Tephrosia angustissima Shuttlw. ex Chapm. var. angustissima TEANAnarrowleaf hoarypea · Fabaceae - Tephrosia angustissima Shuttlw. ex Chapm. var. corallicola (Small) Isely TEANCnarrowleaf hoarypea · Fabaceae
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Tetracoccus ilicifolius Coville & Gilman TEILhollybush · Euphorbiaceae -
Tetramolopium arenarium (A. Gray) Hillebr. ssp. arenarium var. confertum Sherff TEARCMaui tetramolopium · Asteraceae - Tetramolopium arenarium (A. Gray) Hillebr. ssp. laxum Lowrey TEARLMaui tetramolopium · Asteraceae
- Tetramolopium capillare (Gaudich.) H. St. John TECA7pamakani · Asteraceae
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Tetramolopium consanguineum (A. Gray) Hillebr. ssp. consanguineum TECOCforest tetramolopium · Asteraceae - Tetramolopium consanguineum (A. Gray) Hillebr. ssp. leptophyllum (Sherff) Lowrey TECOLforest tetramolopium · Asteraceae
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Tetramolopium filiforme Sherff TEFI2ridgetop tetramolopium · Asteraceae - Tetramolopium filiforme Sherff var. filiforme TEFIFridgetop tetramolopium · Asteraceae
- Tetramolopium filiforme Sherff var. polyphyllum (Sherff) Lowrey TEFIPridgetop tetramolopium · Asteraceae
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Tetramolopium humile (A. Gray) Hillebr. ssp. haleakalae Lowrey TEHUHHaleakala tetramolopium · Asteraceae - Tetramolopium humile (A. Gray) Hillebr. ssp. humile var. sublaeve Sherff TEHUS2alpine tetramolopium · Asteraceae
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Tetramolopium lepidotum (Less.) Sherff ssp. arbusculum (A. Gray) Lowrey TELEAWaianae Range tetramolopium · Asteraceae -
Tetramolopium remyi (A. Gray) Hillebr. TERE3Awalua Ridge tetramolopium · Asteraceae -
Tetramolopium rockii Sherff TEROdune tetramolopium · Asteraceae - Tetramolopium rockii Sherff var. calcisabulorum (H. St. John) Lowrey TEROCdune tetramolopium · Asteraceae
- Tetramolopium rockii Sherff var. rockii TERORdune tetramolopium · Asteraceae
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Tetramolopium tenerrimum (Less.) Nees TETE5Oahu tetramolopium · Asteraceae - Tetraneuris verdiensis R.A.Denham & B.L.Turner TEVE3Verde four-nerve daisy · Asteraceae
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Tetraphis pellucida Hedw. TEPE70tetraphis moss · Tetraphidaceae - Tetraplasandra gymnocarpa (Hillebr.) Sherff TEGYKoolau Range 'ohe · Araliaceae
- Tetraplasandra waialealae Rock TEWAMt. Waialeale 'ohe · Araliaceae
- Tetraplasandra waimeae Wawra TEWA3'ohe kiko 'ola · Araliaceae
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Teucrium fruticans L. TEFR3shrubby germander · Lamiaceae -
Thalictrum aquilegifolium L. THAQcolumbine meadow-rue · Ranunculaceae -
Thelia lescurii Sull. THLE6Lescur's thelia moss · Theliaceae -
Thelocactus bicolor (Galeotti ex N.E. Pfeiffer) Britton & Rose var. flavidispinus Backeb. THBIFglory of Texas · Cactaceae -
Thelypodiopsis juniperorum (Payson) Rydb. THJUjuniper tumblemustard · Brassicaceae -
Thelypodium stenopetalum S. Watson THSTslenderpetal thelypody · Brassicaceae - Thelypodium tenue Rollins THTE3Big Bend thelypody · Brassicaceae
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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 sclerophylla (Poepp. ex Spreng.) Morton THSCstiff maiden fern · Thelypteridaceae -
Themeda quadrivalvis (L.) Kuntze var. helferi (Munro ex Hack.) Bor THQUHkangaroo grass · Poaceae -
Themeda triandra Forssk. THTR8kangaroo 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
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Thismia americana N.E. Pfeiffer THAM2banded Trinity · Burmanniaceae -
Thladiantha dubia Bunge THDUManchu tubergourd · Cucurbitaceae -
Thunbergia erecta (Benth.) T. Anderson THERbush 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 -
Thysanocarpus conchuliferus Greene THCO9Santa Cruz Island fringepod · Brassicaceae