King fern

King Fern (Angiopteris evecta) is a species of fern in the family Marattiaceae. It is one of the largest ferns in the world, with fronds reaching up to 5 meters in length. The King Fern is native to Australia, New Zealand, and the Pacific Islands, where it grows in damp, shady forests.

Description

The King Fern is a large, robust fern with a thick, woody rhizome and large, spreading fronds. The fronds are pinnate, with numerous leaflets arranged along a central stalk. The leaflets are broad and flat, with a glossy, dark green surface. The undersides of the leaflets are covered in small, brown scales.

The King Fern produces sporangia in clusters on the undersides of the leaflets. These sporangia release spores which are dispersed by the wind and can grow into new plants.

Distribution and habitat

The King Fern is found in Australia, New Zealand, and the Pacific Islands. It prefers damp, shady environments and is often found in forests, along stream banks, and in gullies. It can tolerate a range of soil types, but prefers rich, well-drained soils.

Cultivation and uses

The King Fern is cultivated as an ornamental plant for its large, attractive fronds. It requires a shady position and plenty of moisture. In its native range, the rhizome of the King Fern has been used as a source of starch.

Conservation

The King Fern is not currently considered to be at risk of extinction, but its habitat is under threat from deforestation and the spread of invasive species.

See also

• List of ferns of Australia
• Flora of New Zealand
• Flora of the Pacific Islands