dcsimg

Comprehensive Description

provided by North American Flora
Pediomelum mephiticum (S. Wats.) Rydberg
Psoralea mephilica S. Wats. (; E. Palmer, Am. Nat. 12: 601; hyponym. 1878) Proc. Am. Acad. 14: 291. 1879.
A perennial, with a fusiform root about 1 dm. long and 1 cm. thick; stem above ground scarcely any; leaves clustered at the base, digitately 5-foliolate; stipules scarious, ovate, acuminate, 1 cm. long or less; petioles 4-6 cm. long, with spreading orretrorse pubescence; leaflets cuneate or obovate, rounded or retuse at the apex, 1-2 cm. long, canescently strigose beneath, less densely so or glabrate above; peduncles 2-5 cm. long, with spreading or reflexed white hairs; spikes about 2 cm. long, dense; bracts ovate, scarious, acuminate or acute; calyx longhairy; tube 4 mm. long; lobes subequal in length, 7-8 mm. long, the upper four subulate, the lowest one lanceolate; corolla blue, about 12 mm. long; banner oblong.
Type locality: Near Beaver City, Utah [as given by Watson; Palmer, loc. cit., gives the locality southeast of St. George, Utah].
Distribution: Southern Utah and Arizona.
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bibliographic citation
Per Axel Rydberg. 1919. (ROSALES); FABACEAE; PSORALEAE. North American flora. vol 24(1). New York Botanical Garden, New York, NY
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Physical Description

provided by USDA PLANTS text
Perennial, Herbs, Stems woody below, or from woody crown or caudex, Plants with rhizomes or suckers, Taproot present, Tubers or tuberous roots present, Nodules present, Stems very short, acaulescent or subacaulescent, Stems erect or ascending, Stems less than 1 m tall, Plants gland-dotted or with gland-tipped hairs, Stems solid, Stems or young twigs sparsely to densely hairy, Leaves alternate, Leaves petiolate, Stipules conspicuous, Stipules green, triangulate to lanceolate or foliaceous, Stipules setifo rm, subulate or acicular, Stipules persistent, Stipules free, Leaves compound, Leaves palmately 5-11 foliate, Leaf or leaflet margins entire, Leaflets 5-9, Leaves glandular punctate or gland-dotted, Leaves hairy on one or both surfaces, Inflorescences racemes, Inflorescences spikes or spike-like, Inflorescences globose heads, capitate or subcapitate, Inflorescence axillary, Bracts conspicuously present, Bracts hairy, Flowers zygomorphic, Calyx 5-lobed, Calyx gibbous, inflated, or spurred, Calyx hairy, Petals separate, Corolla papilionaceous, Petals clawed, Petals white, Petals ochroleucous, cream colored, Petals blue, lavander to purple, or violet, Petals bicolored or with red, purple or yellow streaks or spots, Banner petal ovoid or obovate, Banner petal auriculate, Wing petals narrow, oblanceolate to oblong, Wing petals auriculate, Wing tips obtuse or rounded, Keel tips obtuse or rounded, not beaked, Stamens 9-10, Stamens diadelphous, 9 united, 1 free, Filaments glabrous, Style terete, Style hairy, Fruit a legume, Fruit unilocular, Fruit freely dehiscent, Fruit oblong or ellipsoidal, Fruit enclosed in calyx, Fruit beaked, Fruit hairy, Fruit 1-seeded, Seeds ovoid to rounded in outline, Seed surface smooth, Seeds olive, brown, or black.
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cc-by-nc-sa-3.0
compiler
Dr. David Bogler
source
Missouri Botanical Garden
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USDA NRCS NPDC
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USDA PLANTS text