Explore / Range and rarity / Rare (≤ 5 counties)
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
- 9,281
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Showing 1,001–1,050 of 9,281.
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Atamisquea emarginata Miers ex Hook. & Arn. ATEMvomitbush · Capparaceae -
Atriplex amnicola Paul G. Wilson ATAM3swamp saltbush · Chenopodiaceae - Atriplex asterocarpa Stutz, G.L. Chu & S.C. Sand. ATAS2Chinle saltbush · Chenopodiaceae
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Atriplex canescens (Pursh) Nutt. var. gigantea S.L. Welsh & Stutz ATCAG4fourwing saltbush · Chenopodiaceae -
Atriplex canescens (Pursh) Nutt. var. laciniata Parish ATCAL2fourwing saltbush · Chenopodiaceae -
Atriplex coronata S. Watson var. notatior Jeps. ATCONcrownscale · Chenopodiaceae -
Atriplex eardleyae Aellen ATEAsmall saltbush · Chenopodiaceae -
Atriplex elegans (Moq.) D. Dietr. var. thornberi M.E. Jones ATELTwheelscale saltbush · Chenopodiaceae - Atriplex erecticaulis Stutz, G.L. Chu & S.C. Sand. ATERerectstem saltbush · Chenopodiaceae
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Atriplex glauca L. ATGL2waxy saltbush · Chenopodiaceae -
Atriplex griffithsii Standl. ATGR2Griffiths' saltbush · Chenopodiaceae -
Atriplex klebergorum M.C. Johnst. ATKLKleberg's saltbush · Chenopodiaceae -
Atriplex laciniata L. ATLAfrosted orache · Chenopodiaceae - Atriplex lentiformis (Torr.) S. Watson ssp. breweri (S. Watson) H.M. Hall & Clem. ATLEBquailbush · Chenopodiaceae
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Atriplex lindleyi Moq. ATLILindley's saltbush · Chenopodiaceae - Atriplex longitrichoma Stutz, G.L. Chu & S.C. Sand. ATLO3long-hair silverscale · Chenopodiaceae
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Atriplex minuscula Standl. ATMI3lesser saltscale · Chenopodiaceae - Atriplex minuticarpa Stutz & G.L. Chu ATMI4Tununk saltbush · Chenopodiaceae
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Atriplex muelleri Benth. ATMUMueller's saltbush · Chenopodiaceae -
Atriplex muricata Humb. & Bonpl. ex Willd. ATMU3Chenopodiaceae -
Atriplex nummularia Lindl. ATNUbluegreen saltbush · Chenopodiaceae -
Atriplex nuttallii S. Watson ATNU2Nuttall's saltbush · Chenopodiaceae -
Atriplex oblongifolia Waldst. & Kit. ATOB2oblongleaf orache · Chenopodiaceae - Atriplex pachypoda Stutz & G.L. Chu ATPA8thickfoot saltbush · Chenopodiaceae
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Atriplex parishii S. Watson ATPA2Parish's saltbush · Chenopodiaceae -
Atriplex stipitata Benth. ATST2mallee saltbush · Chenopodiaceae - Atriplex tenuissima A. Nelson ATTEslender saltbush · Chenopodiaceae
- Atriplex tularensis Coville ATTUTulare saltbush · Chenopodiaceae
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Atriplex undulata (Moq.) D. Dietr. ATUN3wavy-leaved saltbush · Chenopodiaceae - Atriplex vallicola Hoover ATVALost Hills saltbush · Chenopodiaceae
- Atriplex wardii Standl. ATWA2Ward's saltbush · Chenopodiaceae
- Atriplex welshii C.A. Hanson ATWEWelsh's saltbush · Chenopodiaceae
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Aubrieta deltoidea (L.) DC. AUDElilacbush · Brassicaceae -
Aucuba japonica Thunb. AUJAJapanese laurel · Cornaceae - Aulacomnium heterostichum (Hedw.) Bruch & Schimp. AUHEaulacomnium moss · Aulacomniaceae
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Aureolaria grandiflora (Benth.) Pennell var. grandiflora AUGRGlargeflower yellow false foxglove · Scrophulariaceae -
Aureolaria pedicularia (L.) Raf. var. austromontana Pennell AUPEA2fernleaf yellow false foxglove · Scrophulariaceae -
Aureolaria pedicularia (L.) Raf. var. intercedens Pennell AUPEIfernleaf yellow false foxglove · Scrophulariaceae - Aurinia petraea (Ard.) Schur AUPE3goldentuft · Brassicaceae
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Avena hybrida Peterm. ex Rchb. AVHYoat · Poaceae - Avena occidentalis Durieu AVOCwestern oat · Poaceae
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Avena sterilis L. AVSTanimated oat · Poaceae -
Avena strigosa Schreb. AVST2black oats · Poaceae -
Avenula pubescens (Huds.) Dumort. AVPU2downy alpine oatgrass · Poaceae -
Avicennia marina (Forssk.) Vierh. AVMA3gray mangrove · Verbenaceae -
Avicennia marina (Forssk.) Vierh. var. resinifera (G. Forst.) Bakh. AVMARgray mangrove · Verbenaceae -
Ayenia euphrasiifolia Griseb. AYEUeyebright ayenia · Sterculiaceae -
Ayenia glabra S. Watson AYGLsmooth ayenia · Sterculiaceae -
Ayenia limitaris Cristobal AYLIRio Grande ayenia · Sterculiaceae -
Azolla pinnata R. Br. AZPIfeathered mosquitofern · Azollaceae