Micranthocereus flaviflorus

Micranthocereus flaviflorus
Conservation status
Near Threatened  (IUCN 3.1) [1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Caryophyllales
Family:	Cactaceae
Subfamily:	Cactoideae
Genus:	Micranthocereus
Species:	M. flaviflorus
Binomial name
Micranthocereus flaviflorus Buining & Brederoo
Synonyms
Micranthocereus densiflorusBuining & Brederoo 1974 Micranthocereus flaviflorus subsp. densiflorus(Buining & Brederoo) P.J.Braun & Esteves 1995 Micranthocereus flaviflorus var. uilianus(Brederoo & C.A.L.Bercht) P.J.Braun & Esteves 1995 Micranthocereus flaviflorus subsp. uilianus(Brederoo & C.A.L.Bercht) P.J.Braun & Esteves 2008 Micranthocereus uilianusBrederoo & C.A.L.Bercht 1984

Micranthocereus flaviflorus is a species of Micranthocereus found in Brazil. ^[2]

Description

Micranthocereus flaviflorus is a branching cactus that grows from its base, forming columnar, bluish-green shoots up to 75 cm tall and 4 cm in diameter. These shoots are characterized by approximately 16 slightly humped ribs. The oval areoles are densely covered with white wool that ages to gray, and bear hairs up to 1 cm long. The spines initially emerge yellowish-brown, becoming dirty white with age. There are about nine central spines, 0.6-1.3 cm long, with one more robust central spine reaching up to 2 cm. Numerous translucent radial spines are up to 5 mm long. The cephalium, a specialized flowering structure, is composed of white wool and hair-like spines up to 1 cm long. The tubular flowers are red to pinkish-red, or bright cream to yellowish, measuring up to 1.8 cm long and 6 mm in diameter. The bright red, berry-like fruits are 7-8 mm long and have a similar diameter. ^[3]

• 
  Flowers

Distribution

Micranthocereus flaviflorus is native to the Brazilian state of Bahia. ^[2]

• 
  Plant growing in Bahia

Taxonomy

It was first described in 1974 by Albert Frederik Hendrik Buining and Arnold J. Brederoo. The species name, flaviflorus, is derived from the Latin words flavidus ('yellow') and -florus ('-flowered'), referring to its yellow or cream-colored flowers. ^[4]

References

1. Assessment), Pierre Braun (Global Cactus (2010-06-03). "The IUCN Red List of Threatened Species". IUCN Red List of Threatened Species. Retrieved 2024-07-14.
2. "Micranthocereus flaviflorus Buining & Brederoo". Plants of the World Online. Retrieved 2024-01-04.
3. Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 433. ISBN   3-8001-4573-1.
4. "fr:salle-de-lecture [Bibliothèque numérique du CF]". Au Cactus Francophone (in French). 2025-01-10. Retrieved 2026-01-17.

External links

• Media related to Micranthocereus flaviflorus at Wikimedia Commons
• Data related to Micranthocereus flaviflorus at Wikispecies