Specimen courtesy of Plant Resources Center, The University of Texas at Austin
- small shrub 11/2 feet tall or less
- stems erect, sparingly branched
- leaves twice-compound, with 1-3 pairs of pinnae
- leaflets 5-10 pairs per pinna
- flowers in pairs at tip of peduncles
- stamens bright pink, 1/2 inch long or more, much longer than floral cup
- fruit pod 3-4 inches long, 3/8 inch wide, with thickened edges
- shallow sandy soils over caliche, or on caliche outcrops
- Dewitt, Goliad and Victoria counties
- also in Tamaulipas