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Alsophila glaberrima

Alsophila glaberrima is a tree fern from the D'Entrecasteaux Islands of Papua New Guinea, growing in mossy high-altitude forest. It is grown as a rare tree fern and needs cool, humid, shaded conditions, similar to other tropical montane tree ferns.

Family
Cyatheaceae (Cyathe family)
Grows as
Tree, Fern
Light
Part shade, Shade
Water
Keep the root zone consistently moist and never let it dry out.
Soil
Rich, free-draining, humus-heavy mix kept moist; leaf mould or fibrous potting mix.
Temperature
15–25 °C; protect below 5 °C
How easy
Hard
Native range
New Guinea (D'Entrecasteaux Is.)
Climate
wet tropical

About

Alsophila glaberrima, synonym Cyathea glaberrima, is a species of tree fern endemic to the D'Entrecasteaux Islands, specifically Fergusson Island and Goodenough Island, where it grows in mossy forest at an altitude of 900–1,400 m (3,000–4,600 ft). The trunk is erect and usually about 2 m (6 ft 7 in) tall. Fronds may be bi- or tripinnate, are 1–2 m (3 ft 3 in – 6 ft 7 in) in length, and form a dense crown. The stipe is finely warty and bears numerous glossy scales with fragile edges. Sori are produced close to the fertile pinnule midvein. They are protected by small, dark brown indusia that are scale-like in appearance.

Other Alsophila plants

Alsophila abbottii · Alsophila acanthophora · Alsophila acuminata · Alsophila alderwereltii · Alsophila alleniae · Alsophila alpina · Alsophila amboinensis · Alsophila aneitensis · Alsophila apiculata · Alsophila apoensis · Rough tree fern · Alsophila balanocarpa

Text excerpted from the Wikipedia article Alsophila glaberrima by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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