Gymnocalycium castellanosii
Kaktus-ABC [Backeb. & Knuth] 287, 416. 1936 [12 Feb 1936]
Family
Cactaceae
Genus
Species
Gymnocalycium castellanosii
Author
Backeb.
Chinese genus
裸萼球属
Chinese name
-
DescriptionEdit description
Central Spines
0-2.
Description
Solitary plant with fairly heavy spines bent backward in a distinctive fashion.
Flowers
Bell-shaped or funnelform, up to 4,5 cm in diameter, white to very light pink with a pink or reddish throat.
Spines
Subulate, stout, thick and straight or slightly curving, all whitish, greyish or brownish, with a darker tip, up to 2,5 cm long.
Ribs
10-12, with rounded sharply separated tubercles in young specimens that progressively becomes almost flat in mature plant.
Stem
Up to 15 cm in diameter an 10 cm tall, dull green or bluish-green, apex depressed with confluent areoles forming a woolly spineless disk.
Radial Spines
5-7(-8).
Fruits
Spherical or slightly ovoidal green.