Caesalpinia chicamana Killip & J.F.Macbr.
Caesalpinia falcaria (Cav.) Fisher
Caesalpinia glauca (Ortega) Kuntze
Hoffmannseggia densiflora A.Gray
Hoffmannseggia densiflora Benth.
Hoffmannseggia falcaria Cav.
Hoffmannseggia stricta Benth.
Larrea densiflora (A.Gray) Britton & Rose
Larrea densiflora (Benth.) Britton
Larrea glauca Ortega
Common Name: Indian Rush-Pea
Hoffmannseggia glauca is a perennial plant growing from a rhizomatous rootstock with long, underground stems which bear small dark blackish-brown, spheroid tubers ('hog potatoes') up to Icm in diameter.The aerial stems are usually unbranched, up to 40cm tall[
The plant is harvested from the wild for local use as a food. It is said to have good ornamental value[
This species can spread aggressively, at least in part by means of its underground stems and tubers. It has spread to the Mediterranean and is considered to be an aggressive weed of grassland in its native range[
South-western N. America - California to Kansas south through Arizona and Texas to southern Mexico; S. America - Peru, Bolivia, Chile, Argentina
Heavy, alkaline soils; at elevations below 900 metres[
]. Roadsides and disturbed areas in Texas[
]. Subarid areas and dry mountains, growing on dry, stony, or saline soils; at elevations from sea level to 3,400 metres[
|Pollinators||Bees, Lepidoptera, Diptera
|Cultivation Status||Ornamental, Wild
Hoffmannseggia glauca is native to mainly sub-arid climates and is not very cold-hardy, being able to tolerate short-lived temperatures falling to around -8°c when fully dormant[
]. It can tolerate occasional snow cover, for up to 2 weeks a year[
The plant is likely to require a sunny position and to succeed in alkaline and heavy soils[
]. Plants are known to tolerate at least some soil salinity. Established plants are very drought tolerant[
Although many species within the family Fabaceae have a symbiotic relationship with soil bacteria, this species is said to be devoid of such a relationship and therefore does not fix atmospheric nitrogen[
Tuber - roasted[
]. The roasted tubers were relished by the native N. Americans[