Dicksonia sellowiana

Dicksonia sellowiana
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Division:	Polypodiophyta
Class:	Polypodiopsida
Order:	Cyatheales
Family:	Dicksoniaceae
Genus:	Dicksonia
Species:	D. sellowiana
Binomial name
	Dicksonia sellowiana; Hook.

Dicksonia sellowiana, the xaxim, or samambaiaçu or imperial samambaiaçu, is an arborescent fern in the family Dicksoniaceae, native to the tropical Americas.

Distribution[edit]

The fern is native to Southern Mexico, Central America, and South America.

In the South American Atlantic Forest biome, it is found in: Southeastern Brazil within in the states of Minas Gerais, Rio de Janeiro, São Paulo, Paraná, Santa Catarina, and Rio Grande do Sul; in northeast of Argentina within Misiones Province; and within eastern Paraguay.

Description[edit]

Dicksonia sellowiana has an erect and cylindrical caudex, reaching sometimes more than 10 metres (33 ft) high, the fronds are bipinnate and 2 m (6 ft 7 in) long. Due to illegal extraction, the species is at risk of extinction.

Varieties[edit]

Dicksonia sellowiana is variable in its form. Variations are sometimes treated as separate varieties, which include:^[1]

Dicksonia sellowiana var. ghiesbreghtii
Dicksonia sellowiana var. gigantea
Dicksonia sellowiana var. karsteniana
Dicksonia sellowiana var. lobulata

References[edit]

^ "Dicksonia sellowiana". Archived from the original on 2011-09-15. Retrieved 2011-08-26.

External links[edit]

GRIN-Global Web v 1.9.8.2: Taxonomy report of Dicksonia sellowiana

This Cyatheales-related article is a stub. You can help Wikipedia by expanding it.

[1] "Dicksonia sellowiana". Archived from the original on 2011-09-15. Retrieved 2011-08-26.

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