Dicksonia sellowiana
| Dicksonia sellowiana | |
|---|---|
| |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Cyatheales |
| Family: | Dicksoniaceae |
| Genus: | Dicksonia |
| Species: | D. sellowiana
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| 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 and subtropical[1] Americas.
Distribution
The fern is native to Southern Mexico, Central America, and South America.
In the South American Atlantic Forest biome,[1] 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:[2]
- Dicksonia sellowiana var. ghiesbreghtii
- Dicksonia sellowiana var. gigantea
- Dicksonia sellowiana var. karsteniana
- Dicksonia sellowiana var. lobulata
References
- ^ a b "Establishing a secure connection ..." www.scielo.br. doi:10.1590/0102-33062020abb0234. Retrieved 2025-09-17.
- ^ "Dicksonia sellowiana". Archived from the original on 2011-09-15. Retrieved 2011-08-26.