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Dicksonia sellowiana

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Dicksonia sellowiana
Scientific classification
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D. sellowiana
Binomial name
Dicksonia sellowiana

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

Distribution

The fern is native to the Atlantic Forest biome in southeastern Brazil, and to Central America.

In Brazil it is found in the states of Minas Gerais, Rio de Janeiro, São Paulo, Paraná, Santa Catarina and Rio Grande do Sul.

Description

Dicksonia sellowiana has an erect and cilindric 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.

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