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 651–700 of 3,365.
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Chamaesyce remyi (A. Gray ex Boiss.) Croizat & O. Deg. var. hanaleiensis (Sherff) O. Deg. & I. Deg. CHREHRemy's sandmat · Euphorbiaceae -
Chamaesyce remyi (A. Gray ex Boiss.) Croizat & O. Deg. var. kauaiensis (O. Deg. & Sherff) O. Deg. & I. Deg. CHREKRemy's sandmat · Euphorbiaceae -
Chamaesyce remyi (A. Gray ex Boiss.) Croizat & O. Deg. var. remyi CHRERRemy's sandmat · Euphorbiaceae - Chamaesyce rockii (Forbes) Croizat & O. Deg. CHRO2Koolau Range sandmat · Euphorbiaceae
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Chamaesyce skottsbergii (Sherff) Croizat & O. Deg. var. skottsbergii CHSKScoastal sandmat · Euphorbiaceae -
Chamaesyce sparsiflora (A. Heller) Koutnik CHSP4wahiawa bog sandmat · Euphorbiaceae - Chamaesyce velleriflora (Klotzsch & Garcke) Millsp. CHVE11Caliche sandmat · Euphorbiaceae
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Chaptalia albicans (Sw.) Vent. ex Steud. CHAL18white sunbonnets · Asteraceae -
Charpentiera densiflora Sohmer CHDE3Napali coast papala · Amaranthaceae -
Charpentiera elliptica (Hillebr.) A. Heller CHELellipticleaf papala · Amaranthaceae -
Charpentiera ovata Gaudich. var. niuensis Sohmer CHOVNKoolau Range papala · Amaranthaceae -
Charpentiera tomentosa Sohmer var. maakuaensis CHTOMWaianae Range papala · Amaranthaceae -
Cheirodendron dominii Krajina CHDO3Domin's club · Araliaceae -
Cheirodendron fauriei Hochr. CHFAFaurie's club · Araliaceae - Cheirodendron forbesii (Sherff) Lowry CHFO4olapa · Araliaceae
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Cheirodendron platyphyllum (Hook. & Arn.) Seem. ssp. kauaiense (Krajina) Lowry CHPLKlapalapa · Araliaceae -
Cheirodendron platyphyllum (Hook. & Arn.) Seem. ssp. platyphyllum CHPLPlapalapa · Araliaceae -
Cheirodendron trigynum (Gaudich.) A. Heller ssp. helleri (Sherff) Lowry CHTRH3olapalapa · Araliaceae -
Chenopodium album L. var. microphyllum Boenn. CHALMlambsquarters · Chenopodiaceae -
Chilopsis linearis (Cav.) Sweet ssp. linearis CHLIL2desert willow · Bignoniaceae - Chlorogalum purpureum Brandegee var. purpureum CHPUP2purple amole · Liliaceae
- Chlorogalum purpureum Brandegee var. reductum Hoover CHPURCamatta Canyon amole · Liliaceae
- Chlorophytum capense (L.) Voss CHCA28bracketplant · Liliaceae
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Chlorophytum comosum (Thunb.) Jacq. CHCO28spider plant · Liliaceae -
Choisya dumosa (Torr.) A. Gray var. mollis (Standl.) L.D. Benson CHDUMMexican orange · Rutaceae - Chorizanthe howellii Goodman CHHO2Mendocino spineflower · Polygonaceae
- Chorizanthe orcuttiana Parry CHORSan Diego spineflower · Polygonaceae
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Chorizanthe pungens Benth. var. hartwegiana Reveal & Hardham CHPUH2Hartweg's spineflower · Polygonaceae - Chorizanthe wheeleri S. Watson CHWH2Santa Barbara spineflower · Polygonaceae
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Chromolaena frustrata (B.L. Rob.) R.M. King & H. Rob. CHFR4Cape Sable thoroughwort · Asteraceae -
Chrozophora tinctoria (L.) Raf. CHTI2giradol · Euphorbiaceae -
Chrysopogon fulvus (Spreng.) Chiov. CHFUred false beardgrass · Poaceae -
Chrysosplenium rosendahlii Packer CHRO4Rosendahl's golden saxifrage · Saxifragaceae -
Chrysothamnus viscidiflorus (Hook.) Nutt. ssp. planifolius L.C. Anderson CHVIP3yellow rabbitbrush · Asteraceae -
Cienfuegosia yucatanensis Millsp. CIYUYucatan flymallow · Malvaceae -
Cinnamomum burmannii (Nees & Th. Nees) Nees ex Blume CIBU2Padang cassia · Lauraceae -
Cirsium clokeyi S.F. Blake CICL2whitespine thistle · Asteraceae - Cirsium fontinale (Greene) Jeps. var. fontinale CIFOFfountain thistle · Asteraceae
- Cirsium fontinale (Greene) Jeps. var. obispoense J.T. Howell CIFOOChorro Creek Bog thistle · Asteraceae
- Cirsium hydrophilum (Greene) Jeps. var. hydrophilum CIHYHSuisun thistle · Asteraceae
- Cirsium hydrophilum (Greene) Jeps. var. vaseyi (A. Gray) J.T. Howell CIHYVVasey's thistle · Asteraceae
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Cirsium kamtschaticum Ledeb. ex DC. CIKAKamchatka thistle · Asteraceae -
Cirsium navajoense J.W. Moore & Frankton CINANavajo thistle · Asteraceae -
Cirsium parryi (A. Gray) Petr. ssp. mogollonicum C. Schaack & G. Goodwin CIPAMMogollon thistle · Asteraceae -
Cirsium peckii L.F. Hend. CIPE4Steen Mountain thistle · Asteraceae - Cirsium praeteriens J.F. Macbr. CIPR2Palo Alto thistle · Asteraceae
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Cirsium pyrenaicum (Jacq.) All. CIPY2Pyrenean thistle · Asteraceae - Cirsium scabrum (Poir.) Bonnet & Barratte CISC4rough thistle · Asteraceae
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Cissampelos pareira L. CIPA4velvetleaf · Menispermaceae - Cistus incanus L. ssp. corsicus (Loisel.) Heywood CIINChairy rockrose · Cistaceae