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 3,251–3,300 of 3,373.
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Triphora amazonica Schltr. TRAM18broadleaf noddingcaps · Orchidaceae -
Triplaris melaenodendron (Bertol.) Standl. & Steyerm. TRME2long John · Polygonaceae - Tripogon major Hook. f. TRMA21big tripogon · Poaceae
- Trisetum inaequale Whitney TRIN4Whitney's false oat · Poaceae
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Triteleia clementina Hoover TRCLSan Clemente Island triteleia · Liliaceae - Triteleia versicolor Hoover TRVE3pinto triteleia · Liliaceae
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Triticum turgidum L. TRTU2rivet wheat · Poaceae -
Tropidia polystachya (Sw.) Ames TRPO5young palm orchid · Orchidaceae -
Tsuga ×jeffreyi (Henry) Henry [heterophylla × mertensiana] TSJEhybrid hemlock · Pinaceae -
Tulipa clusiana DC. TUCLlady tulip · Liliaceae -
Tulipa gesneriana L. TUGEDidier's tulip · Liliaceae - Twisselmannia californica Al-Shehbaz TWCAking's gold · Brassicaceae
- Ulva clathratioides L.G. Kraft, Kraft, & R.F. Waller ULCLsea lettuce · Ulvaceae
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Umbellularia californica (Hook. & Arn.) Nutt. var. fresnensis Eastw. UMCAFCalifornia laurel · Lauraceae -
Uncinia brevicaulis Thouars UNBRfalse watermeal · Cyperaceae -
Uncinia hamata (Sw.) Urb. UNHAbirdcatching sedge · Cyperaceae -
Urera kaalae Wawra URKAopuhe · Urticaceae -
Urochloa arrecta (Hack. ex T. Dur. & Schinz) O. Morrone & F. Zuloaga URAR2African signalgrass · Poaceae -
Vachellia cornigera (L.) Seigler & Ebinger VACO10bullhorn wattle · Fabaceae -
Vachellia tortuosa (L.) Seigler & Ebinger VATO2poponax · Fabaceae - Vachellia ×ruthvenii Seigler & Ebinger bravoensis × rigidula VARU2hybrid acacia · Fabaceae
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Vallesia antillana Woodson VAAN3tearshrub · Apocynaceae -
Vanilla inodora Schiede VAINscentless vanilla · Orchidaceae -
Vanilla pompona Schiede VAPO2West Indian vanilla · Orchidaceae -
Verbascum chaixii Vill. VECH4nettle-leaf mullein · Scrophulariaceae -
Verbascum olympicum Boiss. VEOLOlympic mullein · Scrophulariaceae -
Verbascum pulverulentum Vill. VEPU9broad-leaf mullein · Scrophulariaceae - Verbascum ×kerneri Fritsch [phlomoides × thaspus] VEKE2mullein · Scrophulariaceae
- Verbascum ×pterocaulon Franch. [blattaria × thapsus] VEPTmullein · Scrophulariaceae
- Verbena abramsii Moldenke VEABSan Bernardino vervain · Verbenaceae
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Verbena californica Moldenke VECA9Red Hills vervain · Verbenaceae -
Verbesina dissita A. Gray VEDIbigleaf crownbeard · Asteraceae -
Veronica cymbalaria Bodard VECY80glandular speedwell · Scrophulariaceae -
Veronica grandiflora Gaertn. VEGRlargeflower speedwell · Scrophulariaceae - Veronica officinalis L. var. tournefortii (Vill.) Rchb. VEOFTcommon gypsyweed · Scrophulariaceae
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Veronica prostrata L. VEPR7prostrate speedwell · Scrophulariaceae -
Veronica undulata Wall. VEUNundulate speedwell · Scrophulariaceae - Viburnum australe Morton VIAUMexican arrowwood · Caprifoliaceae
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Viburnum prunifolium × rufidulum [unnamed hybrid] VIPR2hybrid blackhaw · Caprifoliaceae -
Viburnum rhytidophyllum Hemsl. VIRHleatherleaf arrowwood · Caprifoliaceae -
Viburnum wrightii Miq. VIWRWright's viburnum · Caprifoliaceae -
Vicia bithynica (L.) L. VIBI6Bithynian vetch · Fabaceae -
Vicia hybrida L. VIHY80hairy yellow vetch · Fabaceae -
Vicia menziesii Spreng. VIMEHawai'i vetch · Fabaceae -
Vicia peregrina L. VIPE80wandering vetch · Fabaceae -
Vigna hosei (Craib) Backer VIHO80Sarawak bean · Fabaceae -
Vigna radiata (L.) R. Wilczek VIRA4mung bean · Fabaceae -
Viguiera dentata (Cav.) Spreng. var. lancifolia S.F. Blake VIDEL2toothleaf goldeneye · Asteraceae -
Villadia squamulosa (S. Watson) Rose VISQrat's-tail succulent · Crassulaceae -
Viola chamissoniana Gingins ssp. chamissoniana VICHColopu · Violaceae