Gymnocalycium denudatum kaiomaru

Description

Gymnocalycium denudatum kaiomaru

Origin and Habitat: Garden origin. Jan Suba’ according to Elsner (1970), was created by Pazout (Czech Republic)

Description: ‘Jan Suba’ is said to be an hybrid between Gymnocalycium denudatum kaiomaru and Gymnocalycium baldianum (Gymnocalycium venturianum). It has the stem and spination of the former and the lovely red or deep pink flower colour of the latter. (pink flowered forms of Gymnocalycium denudatum kaiomaru may have been found in habitat, and it is not beyond the bounds of possibility that one such has found its way into cultivation, but all this is dubious).
Habit: It is a small globular usually unbranched cactus with glossy dark-green body and rounded ribs.
Stem: Solitary, broadly globular, depressed globose or subglobose, 2-10 cm tall and 6-15 cm in diameter, glossy greyish-green to dark green.
Ribs: Usually 5-8, flat, with poorly developed tubercles (The ‘chin’ effect is not as visible as in other Gymnocalyciums).
Tubercles: Broad and low
Areoles: Few roundish, slightly woolly 1-2 cm apart.
Spines: All radials, spider-like, nearly harmless, 1-1,5 cm long, white or pale rose coloured, awl-shaped, slender, curved laterally or upward, somewhat twisted or bent and closely appressed against body.
Flowers: Large shiny pink to rich magenta-red, up to 5 cm long and 7 cm wide. Perianth segments oblong, acute.
Blooming season: In spring and summer.
Fruits: Oblong, green.