There are many Astrophytum variegated hybrids, This is because all Astrophytum specioes hybridise with each other. The first picture shows a variegated cristate Astrophytum, grafted on Echinopsis species.
Variegation in Astrophytum myriostigma v. nudum , most probably of hybrid origin. Some variegates change colour with temperature and the reddish colour will turn back to yellow in spring and summer.
Variegation in Stenocactus is more rare.
