Tuesday 21 May Turbinicarpus (Turbinicarpus valdezianus) What’s
the World’s Favourite Species?Find out here. Turbinicarpus fact
file - Find out more - Print factsheet Turbinicarpus valdezianus
is a dwarf, globular cactus with a stem completely divided into
angled tubercles and obscured by dense spines. This species has
30 or more distinctive ‘radial’ spines, which are white and
feathery and measure up to 0.2 centimetres in length. The radial
spines spread out horizontally, forming small ‘umbrellas’ on the
tips of the tubercles. Unlike some other species, Turbinicarpus
valdezianus lacks central spines (2). This cactus may be
confused with other small cacti with dense, feathery spines,
such as Mammillaria lasiacantha, Mammillaria theresae and
Mammillaria sanchez-mejoradae. However, the flowers of
Turbinicarpus valdezianus are positioned at the top of the stem,
rather than on the sides as in Mammillaria species (2). -
Diameter: up to 2.5 cm (2) Measuring around two centimetres in
diameter, the flowers of Turbini