Micranthocereus albicephalus

Micranthocereus albicephalus is a species of plant in the family Cactaceae. It is endemic to Brazil. Its natural habitats are subtropical or tropical dry shrubland and rocky areas. It is threatened by habitat loss.

Micranthocereus albicephalus
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Genus: Micranthocereus
Species:
M. albicephalus
Binomial name
Micranthocereus albicephalus
(Buining & Brederoo) F.Ritter

Description

Micranthocereus albicephalus grows branching from the base with columnar, green shoots and reaches heights of growth of up to 2.5 meters. The shoots have a diameter of up to 9 centimeters. There are up to 22 ribs. The areoles, which are 3 to 5 millimeters apart, are covered with light yellow wool and white hair. Numerous straight, up to 15 millimeters long, thin, prickly, golden-yellow thorns arise from them, one of which points downwards. The 30 to 40 centimeters long and 8 to 9 centimeters wide cephalium consists of dense white wool and golden yellow bristles up to 6 centimeters long.

The companulated flowers are white and open at night. They are 4.5 to 5 centimeters long. The spherical fruits reach a diameter of 3 to 3.5 centimeters.


References
  1. Taylor, N.P.; Machado, M.; Zappi, D.; Braun, P. (2017). "Micranthocereus albicephalus". IUCN Red List of Threatened Species. 2017: e.T40905A121500617. doi:10.2305/IUCN.UK.2017-3.RLTS.T40905A121500617.en. Retrieved 15 November 2021.


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