Senkenbergia crassifolia Standley, Contr. U.S. Natl. Herb. 12: 373. 1909

Herbs, finely pubescent with pale, curved hairs (rarely capitate-glandular). Stems ascending to trailing, 5-20 dm. Leaf blades rhombic to ovate or broadly oblong, proximal blades 10-50 × 8-40 mm, proportionately about as wide as distal blades, margins usually sinuate, often undulate, pubescent. Perianths pale pink to deep pink or red-violet [greenish white], 6-8 mm. Fruits notably gibbous, 6-8[-11] mm, usually prominently warty at least on gibbous side.

Flowering late spring-fall. Fine or rocky soils, flats, washes, slopes, roadsides, desert to semiarid or subtropical scrub; 0-100[-2000] m; Tex.; ne Mexico (Coahuila, Nuevo León, Tamaulipas).