Cibotium glaucum

Cibotium glaucum, the hāpu‘u pulu, is a species of fern in the family Cyatheaceae, native to Hawaii.^[2][1] A slow-growing tree fern typically 6 to 10 ft (2 to 3 m) tall but reaching 25 ft (8 m), it is hardy in USDA zones 10 through 12.^[3][2] Its fiddleheads are the source of the material pulu, which means "mulch" or "padding" in the Hawaiian language.^[4] Women used pulu as an absorbent during their menstrual cycles.^[5]

• 
  Growing over a trail
• 
  Used for landscaping
• 
  Fronds
• 
  Young fiddlehead
• 
  Sori
• 
  Spent sori
• 
  Base

Cibotium glaucum
At the Jardin botanique de Lyon
Fiddlehead
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Division:	Polypodiophyta
Class:	Polypodiopsida
Order:	Cyatheales
Family:	Cibotiaceae
Genus:	Cibotium
Species:	C. glaucum
Binomial name
Cibotium glaucum (Sm.) Hook. & Arn.
Synonyms[1]
Cibotium st-johnii Krajina Dicksonia glauca Sm.

See also

• Olaa Forest in Hawaiʻi Volcanoes National Park