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Intermountain Indian Breadroot

Pediomelum megalanthum var. retrorsum (Rydb.) J. W. Grimes

Comprehensive Description

provided by North American Flora
Pediomelum retrorsum Rydberg, sp. nov
A perennial, with a fusiform root about 2 cm. thick; stem very short, usually with a few decumbent stout branches, 1-2 dm. long, densely canescent with long re trorse hairs; leaves digitately 5-foliolate; stipules ovate, 1-1.5 cm. long, densely hairy; petioles 3-12 cm. long, retrorsely hairy; leaflets rounded-obovate, 2-4 cm. long, densely silky-canescent with appressed hairs, the veins prominent on the upper side; peduncles of the main stem 5-7 cm. long, those of the branches often very short, only 1-2 cm. long, densely retrorse-hairy ; spikes 3-7 cm. long; bracts lanceolate, acuminate; pedicels 1-2 mm. long or less; calyx silky-hirsute; tube 5 mm. long; lobes about 7 mm. long, the upper 4 subulate, the lowest one linear-lanceolate; corolla about 17 mm. long; banner obovate, with rounded basal lobes.
Type collected at Peach Spring near Big Bend of the Colorado, Arizona, June, 1884, /. G. Lemrnon &> wife (herb. Columbia Univ.).
Distribution: Type locality and vicinity.
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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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