Dicksonia sellowiana

Dicksonia sellowiana
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
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 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.[2]

Varieties

Dicksonia sellowiana is variable in its form. Variations are sometimes treated as separate varieties, which include:[3]

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

References

  1. 1 2 "Establishing a secure connection ..." www.scielo.br. doi:10.1590/0102-33062020abb0234. Retrieved 2025-09-17.
  2. ↑ "Equipo Humano". Flora Argentina (in Spanish). Retrieved 2026-08-18.
  3. ↑ "Dicksonia sellowiana". Archived from the original on 2011-09-15. Retrieved 2011-08-26.
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