| General Description | Low forming mats or clumps with large terminal green joints. |
| Shape | Spreading or divergent. |
| Cultivation | Sandy soils. |
| Notable Specimens | Chihuahuan Dessert, Texas, United States of America.
Rio Grande Plain, Texas, United States of America. |
| Habitat | Desert valleys and plains in open areas or under shrubs and trees at an altitude of 300-1,200 m. |
| Leaf Description | Spines are long and generally on the upper areoles, brownish or yellowish in colour, 6-12 per areole, spreading horizontally and straight, 2.5-5 cm in length and 1-1.5 mm in width. |
| Flower Description | Yellow flowers, with yellow sepaloids, anthers and fillaments, 5 cm in diameter. |
| Fruit Description | Fleshy fruit, spineless, cup-shaped, yellow in colour and atop a short stalk, 4-5.5 x 1.2-4 cm. |