Gymnocalycium mihanovichii Origin and Habitat: Chaco Boreal in Paraguay
Habitat: Gymnocalycium mihanovichii Grows under bushes where it is only exposed to direct sunlight a few months out of the year.
- Gymnocalycium mihanovichii Britton & Rose
- Echinocactus mihanovichii
ENGLISH: Chin Cactus, Plaid Cactus
Gymnocalycium mihanovichii Description: Gymnocalycium mihanovichii The plant is considered to be a miniature cactus. It only grows to be 4 cm high and has a 5-6 cm diameter. The not fully opening flowers of this species have a silky appearance and range from pale green to brownish-yellow. It has wider, lower ribs, in juvenile plants divided into separate chins, in maturity every rib have flat surface and a pleat above each areole.
Remaks: Gymnocalycium friedrichii and Gymnocalycium stenopleurum are sometimes combined with Gymnocalycium mihanovichii, and sometimes kept as separate species. G. friedrichii and G. stenopleurum are quite districted of from G. mihanovichii, but many intermediate forms are also known and nowadays it is suggested that all should be combined into only one variable species.
Subspecies, varieties, forms and cultivars of plants belonging to the Gymnocalycium mihanovichii/stenopleurum group
The name Gymnocalycium mihanovichii v. friedrichii was introduced by Werdermann in 1936. Pazout suggested the name G. friedrichii nom. inval. in 1964 but it has not been officially approved. In 1979 Ritter made a description of Gymnocalycium stenopleurum that sometimes can be found under the incorrect name G. mihanovichii v. stenopleurumn. n. (don’t confuse it with v. stenogonum). Thus we have 3 taxa: “mihanovichii”, “friedrichii” and “stenopleurum”. Not taking into account their taxonomic definition they are basic points of the complex with many transitional forms between. These three taxa spread from south to north (North-Western Paraguay): The typical “mihanovichii” inhabits the very south of the area – south and south-east of province Boqueron; “stenopleurum” inhabits a limited area on the very north – in Cerro Leon region and has characteristic recognizable habitus; for “friedrichii” all the area between two mentioned points is indicated.