Astrophytum asterias (Zucc.) Lem.

Sea-urchin Cactus

Body more or less globular, 5-10 cm wide with (6-)8(-10) flat ribs with distinct intervening furrows. Areoles prominent, spineless. Flowers yellow, reddish in centre, 4-6.5 cm wide.

NE Mexico, SE North America (extremely rare in wild)

This species almost extinct in the wild.

Many of the plants available in cultivation under this name are probably of hybrid origin.

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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Astrophytum asterias 'Mirakuru Kabuto'

This cutivar is a widely available beautifully ornamented clone.

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