Mammillaria collinsii (Britton & Rose) Orcutt

Clustering, body globular to 4-5 cm wide. Tubercles prominent, cylindrical. Axils bearing wool and bristles, 1 central spine to 12 mm, 7 pale yellowish radial spines 5-7 mm long, tips dark. Flowers pale yellow with a reddish central stripe 1.5 cm long and wide. Fruit red.


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.