Subspecies, varieties, forms and cultivars of plants belonging to the Escobaria missouriensis group

• Escobaria missouriensis (Sweet) D.R.Hunt: (ssp. missouriensis) Tubercles 6-9 mm long, 10-20 radial spines, and yellow or pink flowers. Distribution: Ranges from Idaho to North Dakota, south on the Great Plains to Nebraska, and in the Rocky Mountains and Colorado Plateaus to New Mexico and Arizona
• Escobaria missouriensis subs. asperispina (Boed.) N.P.Taylor: Tubercles to 18 mm long, 9-10 radials, and greenish yellow or cream flowers. Distribution: Southeastern Coahuila and Nuevo Leon.
• Escobaria missouriensis var. caespitosa (Engelm.) D.R.Hunt
• Escobaria missouriensis var. marstonii (Clover) D.R.Hunt
• Escobaria missouriensis subs. navajoensis Hochstätter: Plant whith short tubercles (only 2 mm long) and small flowers 2-3 cm in diameter that are yellowish with dark midveins. Distribution: Navajo County, Arizona.
• Escobaria wissmannii (Hildm. ex K.Schum.) hort.: It is not easily separable by any character from Escobaria missouriensis. Distribution: Texas