Locally abundant diminuitive shrub generally less than 1 dm tall; spines yellow; roots not tuberous but sometimes rather fleshy; numerous individuals down White Elephant Wash.
Senator Mountain Quadrangle; 11S 07 48 520mE 39 63 590mN; flower buds collected 27 May 2005 from individual in cultivation at Chino Valley, Arizona; stem and fruit collected July 2005