- clump-forming cactus with cylindrical stems up to 8-9 inches tall and 2 inches in diameter
- ribs 10-13
- spines short
- flowers pink with reddish-purple center
- found in openings in thorn shrublands on somewhat saline soils
- federally listed as Endangered
- endemic to South Texas
- total of 4 or 5 populations in Jim Wells, Kleberg and Refugio counties
