Basis of the account

Astrophytum is my favourite cactus genus. Its variation offers many reasons for close observation. Similar plant outlines can conceal different relationships, while fine details of flowers,…

Astrophytum ornatum

Strong, rigid spines and banded hairs. A large, columnar body with age and distinct overwintering needs.

A historical name associated with limited hair covering. Descriptions and illustrations sometimes conflict, including over hair bands. Hair density naturally decreases with age. POWO treats…

An older name used for plants with golden spines and narrow hair bands, among others. It also appears in identification of material used in the 1992 water uptake study. In POWO, mirbelii…

Niveum and virens occur in historical descriptions of more hairy and greener plants respectively. Nudum is used in the catalogue to describe reduced hairs. Age and natural hair abrasion…