Coryphantha robustispina

Standard Cyclopedia of Horticulture

Mammillaria robustispina, Engelm. (M, Brownii, Toumey). Much like the preceding, but tubercles teretish, no glands in the groove or sometimes a single one at apex: spines very stout; radials 10-15; central 1, longer, straight, curved or even hooked, rarely an additional straight upper one: fls. 2 in. long, with very slender tube: seeds large. Babuquibari Mts. south of Tucson, Ariz. The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.