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 751–800 of 3,373.
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Clermontia waimeae Rock CLWA2swampforest clermontia · Campanulaceae -
Clerodendrum glabrum E. Mey. CLGL2Natal glorybower · Verbenaceae -
Clerodendrum kaempferi (Jacq.) Siebold CLKA2Kaempfer's glorybower · Verbenaceae -
Coccocypselum hirsutum Bartl. ex DC. COHI9yerba de guava · Rubiaceae -
Cojoba graciliflora (S.F. Blake) Britton & Rose COGR22Guadeloupe blackbead · Fabaceae -
Collomia debilis (S. Watson) Greene var. camporum Payson CODECalpine collomia · Polemoniaceae -
Colubrina greggii S. Watson COGR7Sierra nakedwood · Rhamnaceae -
Commelina coelestis Willd. COCO28commelina · Commelinaceae -
Commelina forskaolii Vahl COFO3rat's ear · Commelinaceae -
Conradina etonia Kral & McCartney COETEtoniah rosemary · Lamiaceae -
Consolea corallicola Small COCO14semaphore pricklypear · Cactaceae -
Consolida orientalis (J. Gay) Schroedinger COOR4Oriental knight's-spur · Ranunculaceae -
Convolvulus pilosellifolius Desr. COPI7soft bindweed · Convolvulaceae -
Convolvulus tricolor L. COTR17dwarf morning-glory · Convolvulaceae -
Conyza laevigata (L.C. Rich) Pruski COLA21manzanilla horseweed · Asteraceae -
Coprosma cymosa Hillebr. COCY3Hawai'i mirrorplant · Rubiaceae -
Coprosma elliptica W.R.B. Oliv. COEL3bog mirrorplant · Rubiaceae -
Coprosma kauensis (A. Gray) A. Heller COKAkoi · Rubiaceae -
Coprosma longifolia A. Gray COLO4Oahu mirrorplant · Rubiaceae -
Coprosma menziesii A. Gray COME6hupilo · Rubiaceae -
Coprosma rhynchocarpa A. Gray CORHwoodland mirrorplant · Rubiaceae -
Coprosma ternata W.R.B. Oliv. COTE8Molokai mirrorplant · Rubiaceae -
Coprosma waimeae Wawra COWA4'olena · Rubiaceae -
Corallorhiza maculata (Raf.) Raf. var. ozettensis E. Tisch COMAO6summer coralroot · Orchidaceae -
Corchorus hirsutus L. COHI3jackswitch · Tiliaceae -
Cordia bahamensis Urb. COBA4Bahama manjack · Boraginaceae -
Cordia curassavica (Jacq.) Roem. & Schult. COCU4black sage · Boraginaceae -
Cordia dichotoma G. Forst. CODI18fragrant manjack · Boraginaceae -
Cordia myxa L. COMYAssyrian plum · Boraginaceae -
Cordia parvifolia A. DC. COPA16small-leaf geigertree · Boraginaceae -
Cordylanthus nidularius J.T. Howell CONI2Mt. Diablo bird's-beak · Scrophulariaceae -
Cordylanthus orcuttianus A. Gray COOR7Orcutt's bird's-beak · Scrophulariaceae -
Cordylanthus tenuis A. Gray ssp. barbatus T.I. Chuang & Heckard COTEB2Fresno County bird's beak · Scrophulariaceae -
Cordylanthus tenuis A. Gray ssp. capillaris (Pennell) T.I. Chuang & Heckard COTECPennell's bird's beak · Scrophulariaceae -
Cordylanthus tenuis A. Gray ssp. pallescens (Pennell) T.I. Chuang & Heckard COTEP2pallid bird's beak · Scrophulariaceae -
Coreopsis grandiflora Hogg ex Sweet var. inclinata J. Allison COGRIKetona tickseed · Asteraceae -
Coreopsis maritima (Nutt.) Hook. f. COMA10sea dahlia · Asteraceae -
Coreopsis tinctoria Nutt. var. similis (Boynt.) H.M. Parker COTISgolden tickseed · Asteraceae -
Corispermum hyssopifolium L. COHYbugseed · Chenopodiaceae - Corispermum navicula Mosyakin CONA4crescent bugseed · Chenopodiaceae
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Corispermum ochotense Ignatov var. ochotense COOCORussian bugseed · Chenopodiaceae -
Corispermum welshii Mosyakin COWEWelsh's bugseed · Chenopodiaceae - Cornus ×arnoldiana Rehder [amomum × racemosa] COAR7dogwood · Cornaceae
- Cornus ×slavinii Rehder [rugosa × sericea] COSLdogwood · Cornaceae
- Cornutia grandiflora (Schltdl. & Cham.) Schauer COGR24Mexican-blue · Verbenaceae
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Coronilla scorpioides (L.) W.D.J. Koch COSC5yellow crownvetch · Fabaceae -
Coronilla valentina L. COVA4Mediterranean crownvetch · Fabaceae -
Corydalis incisa (Thunb.) Pers. COIN21incised fumewort · Fumariaceae -
Coryphantha nickelsiae (K. Brandegee) Britton & Rose CONI16Nickels' cactus · Cactaceae -
Coryphantha recurvata (Engelm.) Britton & Rose CORE3Santa Cruz beehive cactus · Cactaceae