Origin and Habitat: Frailea buenekeriSN|3317]]SN|3534]] subs. centrispina is found more to the east than any of the other subspecies, near the town of Santana da Boa Vista, Rio Grande do Sul, Brazil.
Habitat and ecology: The habitat also harbour Frailea pygmaeaSN|3534]]SN|3317]].
Synonyms:
See all synonyms of Frailea buenekeri
Subspecies, varieties, forms and cultivars of plants belonging to the Frailea buenekeri group
- Frailea buenekeri W.R.Abraham: has stems less than 2 cm in height or diameter, 14-19 ribs and 8-11 spines. Flowers and fruits comparatively smaller. Distribution: West of Sao Gabriel near the town of Vila Nova do Sul.
- Frailea buenekeri subs. centrispina n.n.: has a more dense cover of pure white spines, and a single white to yellowish-brown central spine, which is stronger than the radial. Distribution: east of the areal near the town of Santana da Boa Vista.
- Frailea buenekeri subs. densispina Hofacker & K.Herm: has stems up to 6 cm tall and 4 cm in diameter, 19-23 ribs, and 10-14 spines. Flowers and fruits are much larger. Distribution: south and southwest of Sao Gabriel west of the town of Lavras do Sul and east of the small village of Ibaré.
Bibliography: Major references and further lectures
1) Edward Anderson “The Cactus family” Timber Press, Incorporated, 2001
2) David R Hunt; Nigel P Taylor; Graham Charles; International Cactaceae Systematics Group. "The New Cactus Lexicon" dh books, 2006
3) Larocca, J., Machado, M. & Duarte, W. 2013. Frailea buenekeri. The IUCN Red List of Threatened Species. Version 2014.3. <www.iucnredlist.org>. Downloaded on 07 May 2015.
4) Marlon C Machado “Fascinating Frailea, Part 2: Review of the species from Rio Grande do Sul” Cactus World (BCSS) Volume 25 No. 2 June 2007