Английская Википедия:Dicksonia sellowiana

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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 Шаблон:Convert high, the fronds are bipinnate and Шаблон:Convert 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

Шаблон:Reflist

External links

Шаблон:Commons category

Шаблон:Taxonbar


Шаблон:Cyatheales-stub