Pediomelum cuspidatum

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Pediomelum cuspidatum
Pediomelum cuspidatum.PNG
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Fabales
Family: Fabaceae
Genus: Pediomelum
Species: P. cuspidatum
Binomial name
Pediomelum cuspidatum

Pediomelum cuspidatum (also known as Psoralea cuspidata) is a perennial herb also known as the buffalo pea, largebract Indian breadroot and the tall-bread scurf-pea. It is found on the black soil prairies in Texas. It has an inflorescence on stems 18-40 centimeters long arising from a subterranean stem and deep carrot-shaped root that is 4-15 cm long. The long petioled leaves are palmately divided into 5 linear-elliptic leaflets that are 2-4 centimeters long. The flowers, borne in condensed spikes from the leaves, are light blue and pea-like.

Pediomelum cuspidatum seed

Cultivation and uses[edit]

Pediomelum cuspidata emerges in late Spring, and sets few seeds, unlike its smaller, fecund cousin Pediomelum hypogaeum. The species has edible tuberous roots, although some sources describe it as 'bitter'.


  • Delena Tull (1987), Edible and Useful Pants of Texas and the Southwest, pgs 86-87
  • H.D. Harrington (1967), Edible Native Plants of the Rocky Mountains, pg 206