Malacocarpus polyacanthus
Cact. Hort. Dyck. (1849) 25 1850
Family
Cactaceae
Genus
Species
Malacocarpus polyacanthus
Author
(Lehm.) Salm-Dyck
Chinese genus
-
Chinese name
-
Primary
Accepted
DescriptionEdit description
Description
Usually solitary (in the standard form), or branching.
Note
Notocactus langsdorfi, together with the subordinated taxa ('leprosorum', 'longispinum', 'pulvinatus', ediewarasii', 'multiceps' and 'prolifer'), form a group of very similar and controversial southern Brasilian plants bearing small flowers and strong spination.
Flowers
Small, lemon yellow with glossy shining petals, up to about 2-3 cm in diameter, standing near the top, and decorated with a red pistil which emphasizes the yellow of the petals. The buds are tomentose.
Blooming Season
They bloom annually around June-July.
Spines
Several, yellowish, strong, about 20-25 mm long, spreading or curved down and backward.
Ribs
Well marked and sharp, with scarcely prominent chinned tubercles. The crest of the ribs typically take on a purple red hue in full sun.
Stem
Bright or dark green, globose to short cylindrical. The apex is depressed and filled with whitish-grey wool.
Areoles
Well spaced, woolly, recessed .