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 4,601–4,650 of 9,281.
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Hymenoxys jamesii Bierner HYJAJame's rubberweed · Asteraceae -
Hymenoxys lapidicola S.L. Welsh & Neese, nom. inq. HYLA7stone rubberweed · Asteraceae -
Hymenoxys perpygmaea W.C. Holmes, Singhurst & Mink HYPE2pygmy prairiedawn · Asteraceae -
Hymenoxys quinquesquamata Rydb. HYQU2rincon rubberweed · Asteraceae -
Hymenoxys subintegra Cockerell HYSUArizona rubberweed · Asteraceae - Hymenoxys texana (J.M. Coult. & Rose) Cockerell HYTE5prairiedawn · Asteraceae
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Hymenoxys vaseyi (A. Gray) Cockerell HYVAVasey's rubberweed · Asteraceae -
Hyoscyamus albus L. HYAL2white henbane · Solanaceae -
Hypelate trifoliata Sw. HYTRinkwood · Sapindaceae -
Hypericum androsaemum L. HYAN8sweet-amber · Clusiaceae -
Hypericum canariense L. HYCA11Canary Island St. Johnswort · Clusiaceae -
Hypericum cumulicola (Small) P. Adams HYCUhighlands scrub St. Johnswort · Clusiaceae -
Hypericum gramineum G. Forst. HYGR2grassy St. Johnswort · Clusiaceae -
Hypericum hookerianum Wight & Arn. HYHO2Hooker's St. Johnswort · Clusiaceae -
Hypericum humifusum L. HYHU2trailing St. Johnswort · Clusiaceae -
Hypericum lissophloeus P. Adams HYLI4smoothbark St. Johnswort · Clusiaceae -
Hypericum parvulum Greene HYPA6Sierra Madre St. Johnswort · Clusiaceae -
Hypericum radfordiorum Weakley ex J.R. Allison HYRA4Brushy Mountain St. Johnswort · Clusiaceae - Hypericum ×moserianum Luquet ex André [calycinum × patulum] HYMO2St. Johnswort · Clusiaceae
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Hypnum imponens Hedw. HYIM3hypnum moss · Hypnaceae -
Hypogymnia canadensis Goward & McCune HYCA6Pacific tube lichen · Parmeliaceae - Hypoxis mexicana Schult. & Schult. f. HYME2Mexican yellow star-grass · Liliaceae
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Hyptis spicigera Lam. HYSP4marubio · Lamiaceae -
Hyptis suaveolens (L.) Poit. HYSU3pignut · Lamiaceae -
Iberis carnosa Willd. IBCA2Pruit's candytuft · Brassicaceae -
Iberis gibraltarica L. IBGIGibraltar candytuft · Brassicaceae -
Iberis sempervirens L. IBSEevergreen candytuft · Brassicaceae -
Idesia polycarpa Maxim. IDPOidesia · Flacourtiaceae -
Ilex anomala Hook. & Arn. ILANHawai'i holly · Aquifoliaceae -
Ilex cornuta Lindl. & Paxton ILCO80Chinese holly · Aquifoliaceae -
Ilex krugiana Loes. ILKRtawnyberry holly · Aquifoliaceae -
Ilex paraguariensis A. St.-Hil. ILPA3mate · Aquifoliaceae - Ilex ×attenuata Ashe [cassine × opaca] ILATtopal holly · Aquifoliaceae
- Iliamna crandallii (Rydb.) Wiggins ILCRCrandall's wild hollyhock · Malvaceae
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Iliamna longisepala (Torr.) Wiggins ILLO2longsepal wild hollyhock · Malvaceae -
Iliamna rivularis (Douglas ex Hook.) Greene var. diversa (A. Nelson) Wiggins ILRIDstreambank wild hollyhock · Malvaceae -
Impatiens sodenii Engl. & Warb. ex Engl. IMSOOliver's touch-me-not · Balsaminaceae -
Indigofera colutea (Burm. f.) Merr. INCO82rusty indigo · Fabaceae -
Indigofera kirilowii Maxim. ex Palib. INKIKirilow's indigo · Fabaceae - Indigofera oxycarpa Desv. INOXAsian indigo · Fabaceae
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Indigofera pilosa Poir. INPIsofthairy indigo · Fabaceae -
Indigofera sphaerocarpa A. Gray INSPSonoran indigo · Fabaceae -
Inula britannica L. INBRBritish yellowhead · Asteraceae -
Inula salicina L. INSAwillowleaf yellowhead · Asteraceae -
Ionactis caelestis Leary & G.L. Nesom IOCA2Spring Mountain aster · Asteraceae - Ionactis elegans (Soreng & Spellenb.) G.L. Nesom IOELSierra Blanca least-daisy · Asteraceae
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Ionopsidium acaule (Desf.) Rchb. IOAC2false diamondflower · Brassicaceae -
Ionopsis utricularioides (Sw.) Lindl. IOUTdelicate violet orchid · Orchidaceae -
Ipomoea asarifolia (Desr.) Roem. & Schult. IPASginger-leaf morning-glory · Convolvulaceae -
Ipomoea dumetorum Willd. ex Roem. & Schult. IPDUrailwaycreeper · Convolvulaceae