Aylostera pygmaea

Aylostera pygmaea, synonyms including Rebutia pygmaea, is a species of cactus in the genus Aylostera, native to Bolivia and northwest Argentina. It has gained the Royal Horticultural Society's Award of Garden Merit.

Description
Aylostera pygmaea rarely grows alone, but most often produces abundant shoots with spherical, depressed spherical or cylindrically elongated bodies. The bodies reach heights of up to 6 centimeters with diameters of 0.5 to 4 centimeters and have a strong beet root. The 9 to 15 ribs are hardly divided into cusps. The areoles are circular. The central spine, which can also be missing, is protruding and short. The 2 to 11 marginal spines are white to brownish. They radiate laterally, rest against the surface of the body or slightly protrude and are 2 to 6 millimeters long.

The yellow to golden yellow, orange, orange-red, pink or violet, rarely flamed flowers are 1.6 to 2.7 centimeters long. The spherical fruits are greenish and have a diameter of up to 6 millimeters.