Publication: Cactaceae Consensus Init. 6: 10. 1998
Description
Parodia rudibuenekeri is a white, fuzzy cactus, usually solitary, or slowly clustering with spiral of dense white spines in columns.
Stem: Globose-Cylindrical, erect, green, up to 20 cm tall, 5 cm in diameter.
Spines: Long, erect, very white, glassy and soft.
Flowers: Diurnal, opening in during the day and closing at night. Pale to bright yellow up to 4 cm in diameter, developing from white flower-buds.
Blooming season: Summer.
Origin and Habitat
Parodia rudibuenekeri comes from Brazil (West of Sao Gabriel, Rio Grande do Sul). It is known from 5 or less locations, and the population can also be considered severely fragmented (extent of occurrence of 2 km2)
Altitude: 200-400 metres above sea level.
Habitat and Ecology: It grows on exposed rocks in grasslands. There are many threats affecting this species, the most important are trampling from cattle, mining, fires and agro-forestry of exotic species (Eucalyptus).
Cultivation and Propagation
This is an easy plant to cultivate. It require a mineral-based potting mix with a good drainage. Can support quite some water during the growing season but pot plants in winter are wet-sensitive and needs to be kept dry (rots easily if soil is wet and cold). Usually it is recommended to over-winter this plant in a bright and warm greenhouse with at least 8-10° C, but it has proved to tolerate temperatures as low as -5° C for short periods.
Sun Exposure: Light shade to full sun but doesn’t like full, hot blazing sun in the central summer month.
Propagation: Seeds, cuttings. Not too difficult to raise from seed.
Bibliography
Major references and further lectures
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Larocca, J. 2013. Parodia rudibuenekeri. In: IUCN 2013. “IUCN Red List of Threatened Species.” Version 2013.2. <www.iucnredlist.org>. Downloaded on 05 March 2014.
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David Hunt, Nigel Taylor “The New Cactus Lexicon” DH Books, 2006
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Edward F. Anderson “The Cactus Family” Timber Press, 2001
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James Cullen, Sabina G. Knees, H. Suzanne Cubey “The European Garden Flora Flowering Plants: A Manual for the Identification of Plants Cultivated in Europe, Both Out-of-Doors and Under Glass”Cambridge University Press, 11/ago/2011
Cultivars and forms (1)
Forms (1)
Gallery
