Dicksonia sellowiana
This article needs additional citations for verification. (July 2018) |
| Dicksonia sellowiana | |
|---|---|
| File:Dicksonia sellowiana in a Brasilian Forest.jpg | |
| Scientific classification Edit this classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Cyatheales |
| Family: | Dicksoniaceae |
| Genus: | Dicksonia |
| Species: | D. sellowiana
|
| Binomial name | |
| Dicksonia sellowiana | |
Dicksonia sellowiana, the xaxim, or samambaiaçu or imperial samambaiaçu, is an arborescent fern in the family Dicksoniaceae, native to the tropical Americas.
Distribution
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 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 in eastern Paraguay.
Description
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
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
- ↑ "Dicksonia sellowiana". Archived from the original on 2011-09-15. Retrieved 2011-08-26.
External links
Dicksonia sellowiana.
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- Dicksoniaceae
- Ferns of the Americas
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- Taxa named by William Jackson Hooker
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