Coryphantha vivipara (Nutt.) Britton & Rose
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Authority
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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Family
Cactaceae
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Scientific Name
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Description
Species Description - Stems solitary or in clumps, to 30 cm; tubercles elongate, 5–20 mm; areoles moderately woolly; central spines mostly 4, 1 pointing downward, 1–2 cm, red or basally white; radial spines 12–20, 1 cm, white; fls 4 cm, dark purplish-pink; fr green 1.2–2.5 cm; seeds brown, 1.5–2 mm; 2n=22. Dry, grassy plains; w. Minn. to Kans. and Okla., w. to Alta. and Ariz. May–Aug. (Mammillaria v.; Neomammillaria v.) Ours is var. vivipara.