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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
- 9,281
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Showing 5,551–5,600 of 9,281.
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Malacothamnus marrubioides (Durand & Hilg.) Greene MAMA3pinkflowered bushmallow · Malvaceae -
Malacothamnus palmeri (S. Watson) Greene MAPA2Palmer's bushmallow · Malvaceae -
Malacothrix foliosa A. Gray MAFOleafy desertdandelion · Asteraceae -
Malacothrix foliosa A. Gray ssp. crispifolia W.S. Davis MAFOCpetite desertdandelion · Asteraceae -
Malacothrix foliosa A. Gray ssp. foliosa MAFOFleafy desertdandelion · Asteraceae -
Malacothrix foliosa A. Gray ssp. philbrickii W.S. Davis MAFOPPhilbrick's desertdandelion · Asteraceae -
Malacothrix foliosa A. Gray ssp. polycephala W.S. Davis MAFOP2manyhead desertdandelion · Asteraceae -
Malacothrix incana (Nutt.) Torr. & A. Gray MAINdunedelion · Asteraceae -
Malacothrix indecora Greene MAIN2Santa Cruz Island desertdandelion · Asteraceae - Malacothrix junakii W.S. Davis MAJU2Junak's desertdandelion · Asteraceae
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Malacothrix phaeocarpa W.S. Davis MAPH3Davis' desertdandelion · Asteraceae -
Malacothrix saxatilis (Nutt.) Torr. & A. Gray var. arachnoidea (McGregor) E.W. Williams MASAAcliff desertdandelion · Asteraceae -
Malacothrix saxatilis (Nutt.) Torr. & A. Gray var. commutata (Torr. & A. Gray) Ferris MASACcliff desertdandelion · Asteraceae -
Malacothrix saxatilis (Nutt.) Torr. & A. Gray var. implicata (Eastw.) H.M. Hall MASAIcliff desertdandelion · Asteraceae -
Malacothrix saxatilis (Nutt.) Torr. & A. Gray var. saxatilis MASAScliff desertdandelion · Asteraceae -
Malacothrix similis W.S. Davis & P.H. Raven MASI5twin desertdandelion · Asteraceae -
Malacothrix squalida Greene MASQSanta Cruz desertdandelion · Asteraceae -
Malaxis corymbosa (S. Watson) Kuntze MACO4Huachuca Mountain adder's-mouth orchid · Orchidaceae - Malaxis tenuis (S. Watson) Ames MATE2Arizona adder's-mouth orchid · Orchidaceae
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Malaxis wendtii Salazar MAWEWendt's adder's-mouth orchid · Orchidaceae -
Malcolmia maritima (L.) W.T. Aiton MAMA4Virginia stock · Brassicaceae -
Mallotus philippensis (Lam.) Müll. Arg. MAPH4kamala tree · Euphorbiaceae -
Malperia tenuis S. Watson MATE3brownturbans · Asteraceae - Malpighia coccigera L. MACO11azotacaballo · Malpighiaceae
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Malpighia emarginata Sessé & Moc. ex DC. MAEMBarbados cherry · Malpighiaceae -
Malus baccata (L.) Borkh. var. baccata MABABSiberian crab apple · Rosaceae -
Malus hupehensis (Pamp.) Rehder MAHU2Chinese crab apple · Rosaceae -
Malus sargentii Rehder MASA9Sargent's apple · Rosaceae -
Malus spectabilis (Aiton) Borkh. MASP9Asiatic apple · Rosaceae - Malus zumi (Matsum.) Rehder MAZU2o-zumi · Rosaceae
- Malus ×arnoldiana (Rehder) Sarg. ex Rehder [baccata × floribunda] MAAR7crab apple · Rosaceae
- Malus ×platycarpa Rehder (pro sp.) [coronaria × pumila] MAPLbigfruit crab · Rosaceae
- Malus ×purpurea (A. Barbier) Rehder [atrosanguinea × niedzwetzkyana] MAPU14purple crab apple · Rosaceae
- Malus ×robusta (Carrière) Rehder MARO10Siberian crab apple · Rosaceae
- Malus ×soulardii (L.H. Bailey) Britton (pro sp.) [ioensis × pumila] MASO3Soulard crab · Rosaceae
- Malvastrum bicuspidatum (S. Watson) Rose MABI2shrubby false mallow · Malvaceae
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Mammillaria dioica K. Brandegee MADI3strawberry cactus · Cactaceae -
Mammillaria mainiae K. Brandegee MAMA6counterclockwise nipple cactus · Cactaceae -
Mammillaria pottsii Scheer ex Salm-Dyck MAPO3rat-tail nipple cactus · Cactaceae -
Mammillaria prolifera (Mill.) Haw. var. texana (Engelm.) Borg MAPRTTexas nipple cactus · Cactaceae -
Mammillaria sphaerica A. Dietr. MASP3longmamma nipple cactus · Cactaceae -
Mammillaria thornberi Orcutt MATHThornber's nipple cactus · Cactaceae -
Mancoa pubens (A. Gray) Rollins MAPU2Trans-Pecos cress · Brassicaceae -
Mandevilla hypoleuca (Benth.) Pichon MAHY5Davis Mountain rocktrumpet · Apocynaceae -
Mandevilla lanuginosa (M. Martens & Galeotti) Pichon MALA15plateau rocktrumpet · Apocynaceae -
Manfreda longiflora (Rose) Verh-Will. MALOlongflower tuberose · Agavaceae -
Manfreda sileri Verh-Will. MASISiler's tuberose · Agavaceae -
Manfreda variegata (Jacobi) Rose MAVAmottled tuberose · Agavaceae - Manihot angustiloba (Torr.) Müll. Arg. MAAN5desertmountain manihot · Euphorbiaceae
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Manihot carthagenensis (Jacq.) Müll. Arg. MACA32Euphorbiaceae