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Gymnocalcium baldianium.jpg
Gymnocalycium baldianium
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Core eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Trichocereeae
Genus: Gymnocalycium
Pfeiff. ex Mittler

About 70, including:
Gymnocalycium albiareolatum
Gymnocalycium angelae
Gymnocalycium anisitsii
Gymnocalycium baldianium - Dwarf chin
Gymnocalycium bayrianum
Gymnocalycium bodenbenderianum
Gymnocalycium carminanthum
Gymnocalycium castellanosii
Gymnocalycium fischeri
Gymnocalycium gibbosum
Gymnocalycium horstii
Gymnocalycium leeanum
Gymnocalycium mihanovichii
Gymnocalycium netrelianum
Gymnocalycium obductum
Gymnocalycium ochoterenai
Gymnocalycium parvulum
Gymnocalycium pflanzii
Gymnocalycium quehlianum
Gymnocalycium rauschii
Gymnocalycium riojense
Gymnocalycium rosae
Gymnocalycium saglionis - Giant chin
Gymnocalycium schroederianum
Gymnocalycium spegazzinii
Gymnocalycium stellatum
Gymnocalycium taningaense
Gymnocalycium uruguayense
Gymnocalycium nova


Brachycalycium Backeb.

Gymnocalycium, commonly called chin cactus, is a genus of about 70 South American species of cactus. The genus name Gymnocalycium (from Greek, "naked calyx") refers to the flower buds bearing no hair or spines.

Their main area of distribution is Argentina, part of Uruguay, Paraguay, southern Bolivia and part of Brazil. Most species are rather small varying from 4 to 15 centimetres in size. In cultivation they are popular for their easy flowering habits, and the flowers are generally brightly coloured. Where temperatures fall below 10 °C (50 °F) they must be cultivated under glass with heat.[1]


  1. ^ RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 1405332964. 

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