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Hottentot Fern

Cyclosorus interruptus

Also called Willdenow’s Fern, Swamp cyclosorus, Willdenow's maiden fern, Neke Fern, Swamp Shield Fern

Hottentot Fern
Photo: David Eickhoff from Pearl City, Hawaii, USA, CC BY 2.0

Cyclosorus interruptus is a swamp fern in the family Thelypteridaceae, growing up to about 1 m tall in damp, frost-free places. It needs constantly moist soil or shallow standing water to do well.

Family
Thelypteridaceae (Thelypterid family)
Grows as
Fern
Light
Part shade, Bright indirect
Water
Keep the soil constantly moist or standing in shallow water; it does not tolerate drying out.
Soil
Rich, wet, peaty or loamy soil, or a boggy pond margin.
Temperature
Warm conditions, about 18 to 30 °C; protect from frost.
How easy
Easy

About

Cyclosorus interruptus, the Hottentot fern or swamp shield-fern, is a fern in the family Thelypteridaceae. It is native to the tropics and subtropics in many parts of the world. In the New World, it is found from Mexico to Argentina, and in the Antilles. In the Old World, it is found in India, China, Malaysia, Sri Lanka and South Africa. It is also found in Australia, New Zealand, Hawaii and other islands in the Pacific Ocean. The various populations differ with respect to genetic cytotypes, glands, pubescence, and frond size. Its habitat is the vicinity of freshwater swamps and it may reach 1 m (3 ft 3 in) in height.

How to grow it

C. interruptus is likely to be a useful landscape plant if kept damp and in gardens free of frost. There are reports that the rhizome is edible.

Uses

C. interruptus is used in herbal medicine for sores, liver diseases, gonorrhea, cough, and malaria.

Other Cyclosorus plants

Cyclosorus

Text excerpted from the Wikipedia article Cyclosorus interruptus 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.

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