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Edible: Leaves, Fronds, Vegetable

A fern which grows in water. It is an annual plant. It grows 10-35 cm tall. It has soft upright stalks with light green soft fronds. The rhizome is short and sticks up. There are thin, clear, scales on the rhizome. The leaves vary from simple leaves, to leaves which are divided 3 times. The stem is anchored in mud. It grows as tufted clumps. Leaves are like carrot tops. The stem of the frond is spongy and air filled. It can grow under the water or be free floating. It produces small plants on the fronds. The fertile fronds which produce the spores, are longer and more finely divided, than the other fronds. They are more stiff and erect and turn brown when mature. The plant only lasts a few months.

A tropical plant. It grows in still or slow flowing fresh water in the tropics. It occurs in swamps up to 1300 m altitude in Papua New Guinea, but it is mostly below 500 m. It can float. It is found in all tropical countries. It is very frost tender. They occur throughout the Philippines near sea level on mud and are able to thrive in shallow water. It grows well in acidic soil (pH 5-6.5) and in shady places. It needs temperatures above 18°C. It grows in wetlands.

Common Names: Swamp fern, Water sprite, Water hornfern, Floating stag's horn, Hihiawai, Oriental water fern, Pakis air, Pakis rawa, Pakis tespong, Paku chai, Paku roman, Paku tespong, Pani dhaniya, Pani dhekia, Pani shak, Sachi, Sayur kodok, Sumatra fern, Water fern

Synonyms: 

Acrostichum thalictroides L;
Ceratoperis cornuta (P. Beauv.) Lepr.;
Ceratopteris siliquosa (L.) Copeland;
and others

 

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