Astrophytum ornatum (DC.) Britton & Rose

Star Cactus

Body columnar to 1.5 m high, 10-20 cm wide with 8 acute ribs. Areoles with 5-11 straight spines to 3 cm long. Flowers yellow to 10 cm wide. Fruit opening at apex.

CE 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.

kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Caryophyllanae
order      Caryophyllales
family       Cactaceae
genus        Astrophytum Lem.