Gymnocalycium oenanthemum
| Gymnocalycium oenanthemum | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Genus: | Gymnocalycium |
| Species: | G. oenanthemum
|
| Binomial name | |
| Gymnocalycium oenanthemum | |
Gymnocalycium oenanthemum is a species of flowering plant in the family Cactaceae, endemic to Argentina. A slightly flattened sphere growing to 12 cm (4.7 in), it has 10–13 ribs, each containing a row of tubercles with radial spines. In summer it bears a wine-red or pink daisy-like flower.
Description
[edit]Gymnocalycium oenanthemum grows individually with cloudy gray-green to blue-green, flattened, spherical shoots and reaches heights of up to 8 centimeters with diameters of 12 centimeters. The eleven to 13 ribs are sharp-edged. There is a central spine, which is often missing. The usually five straight to slightly curved, reddish-gray marginal spines have a darker tip and are up to 1.5 centimeters long.
The short, funnel-shaped, wine-red to slightly pink, shiny flowers reach a length of up to 5 centimeters and a diameter of 4 centimeters. The fruits are green.[2]
In cultivation in the UK and other temperate regions it cannot survive freezing, so at least in the winter months it must be kept indoors in a bright, cool environment with minimal watering. It has gained the Royal Horticultural Society's Award of Garden Merit.[3][4]
Distribution
[edit]Gymnocalycium oenanthemum is widespread in the Argentine provinces of Catamarca and La Rioja at altitudes of 800 to 1300 meters.
Taxonomy
[edit]The first description was made in 1934 by Curt Backeberg.
References
[edit]- ^ Demaio, P.; Perea, M.; Trevisson, M. (2013). "Gymnocalycium oenanthemum". IUCN Red List of Threatened Species. 2013: e.T151783A561045. doi:10.2305/IUCN.UK.2013-1.RLTS.T151783A561045.en. Retrieved 12 November 2021.
- ^ Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 322. ISBN 3-8001-4573-1.
- ^ "RHS Plantfinder – Gymnocalycium oenanthemum". Retrieved 3 March 2018.
- ^ "AGM Plants – Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 43. Retrieved 2 March 2018.
External links
[edit]Media related to Gymnocalycium oenanthemum at Wikimedia Commons
Data related to Gymnocalycium oenanthemum at Wikispecies
