Mammillaria guelzowiana Werderm.

Solitary, eventually clustering, body globular, to 7 cm wide, without milky sap. Tubercles obscure. Axils bare. Central spines 1-3, 4-11 mm long, reddish or yellowish, lower spine longer, 11-16 mm, and hooked. Radial spines 60-80, to 15 mm, whitish, hairlike. Flowers large, 5 cm long, 6 cm wide, brilliant carmine. Fruit pinkish or yellowish.

NW Mexico

Source: Thompson, A, ; Forbes, S.; Spencer, R. (1997). Cactaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 2. Flowering plants. Dicotyledons. Part 1. The identification of garden and cultivated plants. University of New South Wales Press.

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kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Caryophyllanae
order      Caryophyllales
family       Cactaceae
genus        Mammillaria Haw.