Sadleria cyatheoides, commonly known as amaumau fern[3] or ʻamaʻu,[4] is a fern species in the family Blechnaceae, in the eupolypods II clade[5] of the order Polypodiales,[6] in the class Polypodiopsida.[7] It is endemic to Hawaii and inhabits lava flows, open areas, and wet forests on all major islands up to an altitude of 1,676 m (5,499 ft). Reaching a height of 0.9–1.5 m (3.0–4.9 ft) and a trunk diameter of 7.5–10 cm (3.0–3.9 in), ʻamaʻu resembles a small tree fern. Kīlauea's Halemaʻumaʻu is named for this species.[8]
| Sadleria cyatheoides | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Polypodiales |
| Suborder: | Aspleniineae |
| Family: | Blechnaceae |
| Genus: | Sadleria |
| Species: | S. cyatheoides |
| Binomial name | |
| Sadleria cyatheoides | |
| Synonyms[2] | |
| |
Its pith and young fronds are edible either roasted or steamed.[4]
Description
The young fronds are often tinged red to block harmful rays from the Sun.[9]
References
External links
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