Ceratopteris thalictroides

Ceratopteris thalictroides is a fern species belonging to the genus Ceratopteris, one of only two genera of the subfamily Parkerioideae of the family Pteridaceae.

Wikipedia-Autoren · CC BY-SA · Quelle

Rooted in mud, Ceratopteris thalictroides plants vary in size and appearance. The stipes of mature plants are 3–15 mm in diameter, spongy, and air-filled with 4–60 centimeters (1.6–23.6 in) long including its stipe. Pale green, brown when matured, fertile fronds are 15–100 centimeters (5.9–39.4 in) or more, including the stipe, to 40 centimeters (16 in) long. Proliferous or dormant buds with their overlapping dark scales, present in the axils of fertile pinnae, are winged. Pinnae are deeply incised with segments 2–15 mm x 10–30 mm and the fertile segments 1–2 mm x 10–80 mm.

Wikipedia-Autoren · CC BY-SA · Quelle

Culinary The fronds are cooked and eaten as a vegetable in Madagascar and Swaziland, New Guinea[citation needed], Nepal, and Vietnam, and other parts of Asia. It has been used similarly to watercress. In Malaysia and Japan, uncurled fronds have been used in salads. Some ferns are potentially carcinogenic when eaten; this may be the case in Ceratopteris thalictroides. Other C. thalictroides is widely used as an aquarium plant, and is prized for its versatility, being used both as a floating plant and a plant that can be rooted in the substrate. The plant can be used as green manure for rice. C. thalictroides is used medicinally as a poultice for dermatological issues in Malaysia and the Philippines. In China, it's applied to wounds to stop bleeding. In the Sepik region of New Guinea, fronds are used as a personal decoration.[citation needed]

Wikipedia-Autoren · CC BY-SA · Quelle

Ceratopteris thalictroides is often found near stagnant water or in still pockets along slow flowing rivers in swampy areas, swamp forests, sago swamps, marshes, natural and man-made ponds. The plant thrives in full sun to moderate shade, from sea level to 1,300 meters (4,300 ft) altitude, but mostly below 500 meters (1,600 ft). C. thalictroides is often massed on or around logs or other floating vegetation. The plant was once recorded in a fresh-water mangrove (Sonneratia) growing among the finger-like pneumatophores. In some areas, Ceratopteris exhibits a degree of seasonality, reaching maturity and shedding spores during the dry season; plants have lost nearly all sterile fronds by this stage. The species has been reported to be functionally an annual, repopulating from spores the next season, but it is of indefinite lifespan in cultivation.[citation needed] It can reach full maturity in 29 days.

Wikipedia-Autoren · CC BY-SA · Quelle

Ceratopteris thalictroides is an annual aquatic fern, with dimorphic pale-green fronds, irregularly pinnate. Sterile fronds are wider than the fertile fronds. They have a thin texture and are traversed by anastomosing veins. The sterile fronds have a stem of 8 to 25 cm long, ovate to deltoid lamina, 20 to 40 cm long and 7-30 cm wide, pinnate, pinnatifid or 2-3-pinnatifid, with winding lobes. The terminal segments are triangular to lanceolate, hairless. The fertile fronds have a stem of more than 40 cm long, a limb of 24-50 cm long and 12-30 cm wide, 2-4-pinnate, with linear ultimate segments of more than 4 cm long for 1-2 mm wide, glabrous. The sporangia are located along the veins. They are protected by a marginal entire pseudo-indusium, membranous, formed by the reflected margin of the lamina, with 30-70 thickened cells (Fig. 10). Ceratopteris thalictroides usually grows in marshies and low flowing rivers.

Abotsi K, Radji A, Rouhan G, Dubuisson J, Kokou K · CC BY

Togo (Ecological Zones 2, 3 and 5), USA, Costa Rica, Nicaragua, Mexico, Guatemala, El Salvador, Panama, Colombia, Venezuela, Puerto Rico, Jamaica, Hispaniola, Ecuador, Brazil, Guyana, Surinam, French Guiana, Australia, Taiwan, China, Japan, Ryukyu Isl., India, Andaman Isl., Nicobar Isl., Sri Lanka, Myanmar, Nepal, Philippines, Vietnam, Thailand, Laos, Cambodia, Sulawesi, Hawaii (I) (Kauai (I), Oahu (I)), Fiji (I), Micronesia, Palau Isl., Southern Marianas, Uganda, Tanzania, Kenya, Zanzibar, Somalia, Sudan, Congo, Angola, Zambia, Zimbabwe, Mozambique, Ethiopia

Abotsi K, Radji A, Rouhan G, Dubuisson J, Kokou K · CC BY

Ceratopteris thalictroides is widespread across the tropical and subtropical regions of the world, occurring as far north as Korea and as far south as western Australia.

Wikipedia-Autoren · CC BY-SA · Quelle