Gymnocalycium westii
Cact. Succ. J. (Los Angeles) 29: 11, figs. 1957
Family
Cactaceae
Genus
Species
Gymnocalycium westii
Author
Hutchison
Chinese genus
裸萼球属
Chinese name
-
Primary
Accepted
DescriptionEdit description
Central Spines
3-4, up to 6 cm long.
Seeds
Cap-shaped, nearly as broad as long, black, finely areolate-papillale.
Description
Weingartia westiiSN|14935]]SN|14935]] is a very spiny and usually simple cactus.
Flowers
One per areole nearly apical, approx 4- 5 cm tall 3,5-4,5 cm in diameter, narrow funnel-shaped with short tube, tepals yellow (occasionally white) with a neat staminal throat ring.
Blooming Season
Spring to early summer and remain open for five or six days.
Spines
Very dense, acicular, spreading, thin, elastic, interlacing and almost completely covering the stem, not easily distinguishable as centrals and radials creamy-grey, straw-coloured to brownish..
Ribs
Completely divided into round spiralling tubercles.
Stem
About 10 to 20 cm tall, 6 to 20 cm in diameter, spherical to short-columnar, yellowish-green, grey-green or purple tinged and connected though a thin neck to the strong tuberous root.
Radial Spines
7-9 similar to the central up to 4 cm long.
Fruits
Small, spherical-ovoidal or tear-drop-shaped, olive green to tannish-brown, thin-skinned at maturity, dehiscing basally or on the side, with few seeds.
Areoles
Large, felted and somewhat raised.