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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
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Showing 1,851–1,900 of 9,281.
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Chamaesyce olowaluana (Sherff) Croizat & O. Deg. CHOL3alpine sandmat · Euphorbiaceae - Chamaesyce perennans Shinners CHPE10perennial sandmat · Euphorbiaceae
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Chamaesyce pergamena (Small) Small CHPE14sandmat · Euphorbiaceae -
Chamaesyce platysperma (Engelm. ex S. Watson) Shinners CHPL3flatseed sandmat · Euphorbiaceae -
Chamaesyce porteriana Small CHPO7Porter's sandmat · Euphorbiaceae -
Chamaesyce remyi (A. Gray ex Boiss.) Croizat & O. Deg. CHRE3Remy's sandmat · Euphorbiaceae -
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. CHSKcoastal sandmat · Euphorbiaceae -
Chamaesyce skottsbergii (Sherff) Croizat & O. Deg. var. skottsbergii CHSKScoastal sandmat · Euphorbiaceae -
Chamaesyce skottsbergii (Sherff) Croizat & O. Deg. var. vaccinioides (Sherff) Koutnik CHSKVcoastal sandmat · Euphorbiaceae -
Chamaesyce sparsiflora (A. Heller) Koutnik CHSP4wahiawa bog sandmat · Euphorbiaceae - Chamaesyce spurca (M.C. Johnst.) B.L. Turner CHSP5low sandmat · Euphorbiaceae
- Chamaesyce theriaca (L.C. Wheeler) Shinners CHTH6Terlingua sandmat · Euphorbiaceae
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Chamaesyce trachysperma (Engelm.) Millsp. CHTR3San Pedro River sandmat · Euphorbiaceae -
Chamaesyce vallis-mortae Millsp. CHVA4Death Valley 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 obovata Gaudich. CHOB2broadleaf papala · Amaranthaceae -
Charpentiera ovata Gaudich. CHOV2Koolau Range papala · Amaranthaceae -
Charpentiera ovata Gaudich. var. niuensis Sohmer CHOVNKoolau Range papala · Amaranthaceae -
Charpentiera ovata Gaudich. var. ovata CHOVOKoolau Range papala · Amaranthaceae -
Charpentiera tomentosa Sohmer CHTO3Waianae Range papala · Amaranthaceae -
Charpentiera tomentosa Sohmer var. maakuaensis CHTOMWaianae Range papala · Amaranthaceae -
Charpentiera tomentosa Sohmer var. tomentosa CHTOTWaianae Range papala · Amaranthaceae -
Chasmanthe floribunda (Salisb.) N.E. Br. CHFL9African cornflag · Iridaceae - Cheilanthes aemula Maxon CHAErival lipfern · Pteridaceae
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Cheilanthes clevelandii D.C. Eaton CHCLCleveland's lipfern · Pteridaceae -
Cheilanthes lendigera (Cav.) Sw. CHLE2nitbearing lipfern · Pteridaceae -
Cheilanthes leucopoda Link CHLE3whitefoot lipfern · Pteridaceae -
Cheilanthes pringlei Davenport CHPR2Pringle's lipfern · Pteridaceae - Cheilanthes ×parishii Davenport (pro sp.) [covillei × parryi] CHPA3Parish lipfern · Pteridaceae
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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. CHPLlapalapa · Araliaceae -
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 CHTR2olapalapa · Araliaceae -
Cheirodendron trigynum (Gaudich.) A. Heller ssp. helleri (Sherff) Lowry CHTRH3olapalapa · Araliaceae -
Cheirodendron trigynum (Gaudich.) A. Heller ssp. trigynum CHTRTolapalapa · Araliaceae -
Chelone obliqua L. var. erwiniae Pennell & Wherry CHOBEErwin's red turtlehead · Scrophulariaceae -
Chenopodium album L. var. microphyllum Boenn. CHALMlambsquarters · Chenopodiaceae - Chenopodium carnosulum Moq. CHCA12ridged goosefoot · Chenopodiaceae
- Chenopodium carnosulum Moq. var. patagonicum (Phil.) Wahl CHCAPridged goosefoot · Chenopodiaceae
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Chenopodium ficifolium Sm. CHFI4figleaf goosefoot · Chenopodiaceae