Structure and identification

Stems are spherical and offset at the base, with fibrous roots. In older clusters, heads can form mounds of considerable diameter. Lateral spines are pale and partly interweave, while the single central spine may be curved and point slightly downwards or be absent. The monograph describes yellow, funnel-shaped flowers appearing near the apex, often several at once. [Dicht and Lüthy 2005, p. 161–162]

Habitat and variation

The description of the nominate subspecies covers open grassland communities on lava substrates in Sonora and southern Arizona. Former southern populations termed subsp. canatlanensis in the book are now associated with C. compacta. Sites of nominate C. recurvata remain the basis of the description presented here. [Dicht and Lüthy 2005, pp. 161–162, C. compacta record, synonyms, 11 October 2026] [2-WWW]

Related articles

Synonyms and names in the literature

Cactus engelmannii · Cactus recurvatus · Coryphantha engelmannii · Mammillaria recurvata [2-WWW]