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
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Showing 251–300 of 9,281.
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Allium nigrum L. ALNIblack garlic · Liliaceae -
Allium oxyphilum Wherry ALOXlillydale onion · Liliaceae -
Allium parishii S. Watson ALPA2Parish's onion · Liliaceae -
Allium parryi S. Watson ALPA11Parry's fringed onion · Liliaceae -
Allium passeyi N.H. Holmgren & A.H. Holmgren ALPA5Passey's onion · Liliaceae -
Allium peninsulare Lemmon ex Greene var. franciscanum McNeal & Ownbey ALPEFSan Francisco onion · Liliaceae - Allium pleianthum S. Watson ALPL3manyflower onion · Liliaceae
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Allium plummerae S. Watson ALPL4Tanners Canyon onion · Liliaceae -
Allium punctum L.F. Hend. ALPUdotted onion · Liliaceae -
Allium sanbornii Alph. Wood var. congdonii Jeps. ALSACCongdon's onion · Liliaceae -
Allium scilloides Douglas ex S. Watson ALSC2fragile onion · Liliaceae -
Allium scorodoprasum L. ALSC3sand leek · Liliaceae -
Allium scorodoprasum L. ssp. rotundum (L.) Stearn ALSCRsand leek · Liliaceae -
Allium sharsmithiae (Ownbey & Aase) McNeal ALSH2Sharsmith's onion · Liliaceae -
Allium shevockii McNeal ALSHSpanish Needle onion · Liliaceae -
Allium sphaerocephalon L. ALSP4roundheaded leek · Liliaceae -
Allium tolmiei (Hook.) Baker ex S. Watson var. persimile Ownbey ALTOPsevendevils onion · Liliaceae -
Allium tribracteatum Torr. ALTR2threebract onion · Liliaceae -
Allium tuberosum Rottler ex Spreng. ALTU3Chinese chives · Liliaceae -
Allium tuolumnense (Ownbey & Aase) S. Denison & McNeal ALTURawhide Hill onion · Liliaceae -
Allium victorialis L. ALVI3victory onion · Liliaceae -
Allium vineale L. ssp. compactum (Thuill.) Coss. & Germ. ALVIC3compact onion · Liliaceae -
Allium yosemitense Eastw. ALYOYosemite onion · Liliaceae -
Allium ×proliferum (Moench) Schrad. ex Willd. [cepa × fistulosum] ALPR6garden onion · Liliaceae -
Allolepis texana (Vasey) Söderst. & Decker ALTE3Texas salt · Poaceae -
Allophylus timoriensis (DC.) Blume ALTI3Timor allophylus · Sapindaceae -
Alnus cordata (Loisel.) Duby ALCO13Italian alder · Betulaceae -
Alocasia odora (Lodd.) G. Don ALOD3Asian taro · Araceae -
Alocasia plumbea K. Koch ex Van Houtte ALPL5metallic taro · Araceae - Aloe ×schoenlandi Baker [saporaria × striata] ALSC12aloe · Aloaceae
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Alopecurus aequalis Sobol. var. sonomensis P. Rubtzov ALAESSonoma shortawn foxtail · Poaceae - Alopecurus creticus Trin. ALCR7Cretan meadow foxtail · Poaceae
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Alopecurus rendlei Eig ALRE3Rendle's meadow foxtail · Poaceae -
Aloysia gratissima (Gillies & Hook.) Troncoso var. schulziae (Standl.) L.D. Benson ALGRSwhitebrush · Verbenaceae -
Alphitonia ponderosa Hillebr. ALPO3Hawai'i kauilatree · Rhamnaceae -
Alpinia mutica Roxb. ALMU2small shell ginger · Zingiberaceae -
Alpinia purpurata (Vieill.) K. Schum. ALPU4red ginger · Zingiberaceae -
Alsinidendron lychnoides (Hillebr.) Sherff ALLY3kuawawaenohu · Caryophyllaceae -
Alsinidendron obovatum Sherff ALOB4Waianae Range alsinidendron · Caryophyllaceae -
Alsinidendron trinerve H. Mann ALTR5mountain alsinidendron · Caryophyllaceae -
Alsinidendron viscosum (H. Mann) Sherff ALVI6climbing alsinidendron · Caryophyllaceae -
Alstonia macrophylla Wall. ex G. Don ALMA16deviltree · Apocynaceae -
Alternanthera bettzichiana (Regel) Voss ALBEcalicoplant · Amaranthaceae -
Alternanthera brasiliana (L.) Kuntze ALBR5Brazilian joyweed · Amaranthaceae -
Alternanthera ficoidea (L.) P. Beauv. ALFI8sanguinaria · Amaranthaceae -
Alternanthera paronychioides A. St.-Hil. var. amazonica Huber ALPAA2smooth joyweed · Amaranthaceae -
Althaea cannabina L. ALCA25palm-leaf marshmallow · Malvaceae -
Althaea hirsuta L. ALHI2hairy marshmallow · Malvaceae - Alvaradoa amorphoides Liebm. ALAM3Mexican alvaradoa · Simaroubaceae
- Alvaradoa amorphoides Liebm. ssp. psilophyllis (Urb.) Cronquist ALAMP2Mexican alvaradoa · Simaroubaceae