Opuntia robusta

Opuntia robusta, Photo: Michael Lahanas

Cladus: Eukaryota
Regnum: Plantae
Divisio: Magnoliophyta
Classis: Magnoliopsida
Ordo: Caryophyllales
Familia: Cactaceae
Subfamilia: Opuntioideae
Tribus: Opuntieae
Genus: Opuntia
Species: Opuntia robusta

Name

Opuntia robusta H.L.Wendl. ex Pfeiff.

References

* Enumeratio Diagnostica Cactearum hucusque Cognitarum 165. 1837 (H. L. Wendland, Cat. hort. Herrnh. 1835, num. nud.?)
* USDA, ARS, National Genetic Resources Program. Germplasm Resources Information Network - (GRIN) [Online Database]. [1]

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Opuntia robusta, Wheel Cactus or Camuesa, is a species of cactus in the Cactaceae family.[1] It is native and endemic to Mexico, North America.

Description

Plants are commonly around 1 metre high, though they may grow to over 3 metres-9 feet high when supported.[2]

The flattened stem segments are fleshy, round and blue-grey in colour.[2] These are up to 30 cm in diameter and have sharp spines up to 5 cm in length.[2] Yellow, sessile flowers with a fleshy base are produced on the edges of the upper stem segments.[2] These are followed by barrel-shaped fleshy fruits which are pink or purple and up to 8 cm long.[2]

Taxonomy

The species was first formally described in 1837 in Enumeratio Diagnostica Cactearum hucusque Cognitarum.[1] It has naturalised in the states of South Australia, New South Wales and Victoria in Australia.[1]

References

1. ^ a b c d "Opuntia robusta". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government. http://www.anbg.gov.au/cgi-bin/apni?taxon_id=620.
2. ^ a b c d e Parsons, W.T. (1981). Noxious Weeds of Victoria. Australia: Inkata Press. ISBN 0909605009.

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