Rapicactus zaragosae
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Rapicactus zaragosae, synonym Turbinicarpus zaragosae, is a species of plant in the family Cactaceae. It is endemic to Mexico.[1] Its natural habitat is hot deserts. It is threatened by habitat destruction.
Description
Rapicactus zaragosae is a solitary, club-shaped cactus with stems that are globular to cylindrical, reaching up to 150 mm in height and 50 mm in width. The stems are greenish-blue with a woolly apex, and the areoles in the flowering area are very woolly. The tubercles of this cactus are pyramidal or conical. It has 21-25 radial spines that are slightly bent backwards, thickened at the base, glassy white with a brown tip, and measure 3-6 mm in length, except for 2 or 3 bristle-like spines that can reach up to 2 cm. Additionally, there are 2 brownish-black central spines that turn grey with age, one of which is erect and darker, measuring around 15-20 mm long. The flowers of Rapicactus zaragosae are slender and funnel-shaped, ranging in color from pale yellow to violet, with a darker mid-vein. They are 18-20 mm long and 15-30 mm wide, blooming in spring to summer. The fruits are greenish-brown.[2]
Distribution
Plants are found growing on gypsum hills in the municipalities of Zaragosa and South of Aramberri in Nuevo Leon, Mexico at elevations of 1200-1700 meters. The plants are found growing with Thelocactus conothelos subsp. aurantiacus and Cochemiea conoidea.[2]
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Plant growing in habitat in Zaragoza, Nuevo Leon
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References
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- Anderson, E.F., Fitz Maurice, W.A. & Fitz Maurice, B. 2002. Turbinicarpus zaragosae. 2006 IUCN Red List of Threatened Species. Downloaded on 23 August 2007.