Comprehensive Description
provided by North American Flora
Pediomelum subulatum (Bush) Rydberg
Psoralea esculenla /3 T. & G. Fl. N. Am. 1: 302, in part. 1838. Psoralea subulata Bush, Rep. Mo. Bot. Card. 17: 120. 1906.
A subacaulescent perennial, with an oval tuberous root 2-2.5 cm. thick; stem above ground almost none, hirsute; leaves clustered at the base, digitately 5-foliolate; stipules ovate to lanceolate, membranous; petioles 1-2 dm. long, hirsute; leaflets obovate, obtuse or rounded at the apex, mucronate or cuspidate, long-hirsute beneath, sparingly so or glabrate above, 3-6 cm. long, 2-2.5 cm. wide; peduncles 5-10 cm. long, reclining or curving upwards; spikes oblong, dense, 5-8 cm. long; bracts lanceolate, 6-8 mm. long; calyx hirsute; tube 5 mm. long; upper four lobes subulate, 8 mm. long, the lowest lanceolate, acute, slightly if at all longer; corolla about 1.5 cm. long, similar to that of P. esculentum; pod hirsute, the body 4-5 mm. long, tipped with a flat subulate beak, 12-15 mm. long; seed black.
Type locality: Dallas County, Texas. Distribution: Texas to Louisiana.
- bibliographic citation
- Per Axel Rydberg. 1919. (ROSALES); FABACEAE; PSORALEAE. North American flora. vol 24(1). New York Botanical Garden, New York, NY
