Intermountain Indian Breadroot

Pediomelum megalanthum (Wooton & Standley) Rydberg
Psoralea mephilica Rydb. Fl. Colo. 214. 1906. Not P. mephilica S. Wats. 1879. Psoralen megalantha Wooton & Standley, Contr. U. S. Nat. Herb. 16: 140. 1913.
A low perennial, with a tuberous root; stem above ground very short; leaves digitately 5-6-foliolate, clustered at the base; stipules scarious, ovate, about 1 cm. long; petioles 4—8 cm. long, densely white-strigose; leaflets obovate, 1-3 cm. long, densely white-strigose beneath, less densely so above; peduncles stout, 1-4 cm. long, white-strigose and with a few spreading hairs; spikes about 2 cm. long, dense; bracts lanceolate or ovate-lanceolate, about 1 cm. long, acute; pedicels 1-3 mm. long; calyx campanulate; tube 5-6 mm. long; lobes about 1 cm. long, all subulate; corol'a 2 cm. long or nearly so; banner oblong.
Type locality: Aztec, New Mexico.
Distribution: Western Colorado, eastern Utah, and northern New Mexico.