Astrophytum asterias

Astrophytum asterias (*)

Cladus: Eukaryota
Regnum: Plantae
Divisio: Magnoliophyta
Classis: Magnoliopsida
Ordo: Caryophyllales
Familia: Cactaceae
Subfamilia: Cactoideae
Tribus: Cacteae
Genus: Astrophytum
Species: Astrophytum asterias

Name

Astrophytum asterias (Zucc.) Lem.

References

* USDA, NRCS. 2006. The PLANTS Database, 6 March 2006 (http://plants.usda.gov).

Data compiled from various sources by Mark W. Skinner. National Plant Data Center, Baton Rouge, LA 70874-4490 USA.

* Cactees 50. 1868
* USDA, ARS, National Genetic Resources Program. Germplasm Resources Information Network - (GRIN) [Online Database]. [1]

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Astrophytum asterias is an attractive, spineless cactus also known as a Sand Dollar Cactus, Sea Urchin Cactus, and Star Peyote. They are typically small, often 2-6 inches in diameter and usually 1-2 inches tall. In the wild, they flower throughout most of the summer season.
As with certain other slowly maturing cacti, A. asterias has been listed as endangered[1], and its decline in the wild has been largely attributed to over-collection and poaching. Other contributing factors are thought to be urban development and herbicides.

Fortunately, the cactus is readily propagated by seed, and its rarity in the wild ensures that most such plants encountered in nurseries are seed grown. The popularity of this species among collectors and enthusiasts has ensured that a number of cultivars are available. One such cultivar is the 'Super Kabuto', a highly spotted white clone.
Astrophytum asterias 'Super Kabuto'

References

1. ^ Star Cactus (Astrophytum asterias)

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Source: Wikispecies, Wikipedia: All text is available under the terms of the GNU Free Documentation License