Robinia neomexicana Fabaceae
New Mexican Locust, Southwest Locust, Desert Locust
- Broadleaf deciduous shrub or small tree to 25 ft (~ 7.5 m) high; produces root suckers and forms dense
thickets. Bark is light gray-brown, shallowly furrowed, with scaly flat ridges. Stems zigzag,
somewhat angled or ridged, reddish hairs, stout spiny, a pair of spines ("thorns") at each leaf scar. Leaves alternate,
pinnately compound (odd-pinnate), 15-20 cm long, with 11 to 19 elliptical leaflets each 2.5-4 cm long, margins
entire, green above. Flowers pea-type, pale rose to nearly white, in short, drooping clusters. Fruit
pod-like, flat pod, brown, 5-10 cm long, smooth but covered in gland tipped hairs.
- Hardy to USDA Zone 5 Native range extends from extreme southeastern
Nevada and California, across southern Utah and Colorado to west Texas and south through Arizona and New
Mexico and into northern Mexico.