Mammillaria guerreronis (Bravo) Boed.

Freely clustering, body elongate, up to 60 cm high, 6 cm wide, with milky sap. Tubercles prominent, conical. Axils with 15-20 whitish bristles. Central spines 4, to 15 mm long, whitish, tips brownish, sometimes hook­ed. Radial spines 20-30, to 5-10 mm long, white or pinkish. Flowers small, red. Fruit becoming pink.


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.

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