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Bird's nest fern Aspleniaceae Asplenium australasicum Common Names Bird's nest fern, crow's nest fern (En); asplénie cétérach, cétérach officinal (Fr); 南洋山蘇花, 南洋巢蕨 (Cn) Related Species A. nidus, A. antiguum Plant Distribution East and Southeast Asia Botanical Features Large epiphyte, elliptical fronds simple, 5-20 x 60-80 cm, radiated in rosette to 3 m in diameter and 0.5 m in height; lamina yellow-green, leathery texture, apex obtuse or acute; midrib strongly keeled below, hairless; veins free, intramarginal vein present; sori underside of fronds, in 2 parallel rows 4 mm from midrib, 40-60 mm long; roots massive. Leaf-like fronds 64
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Bird's nest fern203.64.245.61/fulltext_pdf/ebook1/10-7 birds nest fern.pdfBird's nest fern Asplenium australasicum Aspleniaceae Common Names Bird's nest fern, crow's nest fern (En);

Jan 16, 2020

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Page 1: Bird's nest fern203.64.245.61/fulltext_pdf/ebook1/10-7 birds nest fern.pdfBird's nest fern Asplenium australasicum Aspleniaceae Common Names Bird's nest fern, crow's nest fern (En);

Bird's nest fernAspleniaceaeAsplenium australasicum

Common NamesBird's nest fern, crow's nest fern (En); asplénie cétérach, cétérach officinal (Fr);

南洋山蘇花, 南洋巢蕨 (Cn)

Related SpeciesA. nidus, A. antiguum

Plant DistributionEast and Southeast Asia

Botanical FeaturesLarge epiphyte, elliptical fronds simple, 5-20 x 60-80 cm, radiated in rosette to 3 m in diameter and 0.5 m in height; lamina yellow-green, leathery texture, apex obtuse or acute; midrib strongly keeled below, hairless; veins free, intramarginal vein present; sori underside of fronds, in 2 parallel rows 4 mm from midrib, 40-60 mm long; roots massive.

Leaf-like fronds

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Page 2: Bird's nest fern203.64.245.61/fulltext_pdf/ebook1/10-7 birds nest fern.pdfBird's nest fern Asplenium australasicum Aspleniaceae Common Names Bird's nest fern, crow's nest fern (En);

Environmental FactorsLight requirement: partial sun, full shade; temperature requirement: cool-warm; preferred soil type: loam, clay; optimum soil pH: 6.3-7.3; tolerance: humid, shading; sensitivity: full sun.

Sori in 2 parallel rows Underside of fronds with sori

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Page 3: Bird's nest fern203.64.245.61/fulltext_pdf/ebook1/10-7 birds nest fern.pdfBird's nest fern Asplenium australasicum Aspleniaceae Common Names Bird's nest fern, crow's nest fern (En);

Production MethodsSystem: intercropping with trees, monocropping under shade; planting material: 2-3 cm leaf cuttings, ratooning, spores released from sori; planting method: two-time transplanting to different pot sizes before transplanting to the field; irrigation: frequent with good drainage; priority fertilizer: nitrogen, organic matter; crop management: free standing, maintain two whorls of vigorous, outer leaves (about 10-

st15 leaves); planting to 1 harvest: 6-12 months from cutting, 1-2 years from spores; harvesting: repeated removal of new leaves of the inner whorl that reach 15-20 cm, or repeated cutting the top 1/3 of new leaves that reach 30 cm; yield: 120 kg/ha, harvest once every two weeks (summer), 240 kg/ha, harvest weekly (winter); 5 t/ha in one year.

Intercropping with betel nut under black shade net

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Page 4: Bird's nest fern203.64.245.61/fulltext_pdf/ebook1/10-7 birds nest fern.pdfBird's nest fern Asplenium australasicum Aspleniaceae Common Names Bird's nest fern, crow's nest fern (En);

Edible PartsTender leaves are eaten stir-fried, boiled, or steamed.

Health ValuesAscorbic acid: extremely high; calcium: low; iron: low; protein: 2.8%. Leaves contain kaempferol glucosides.

Packing for marketing Edible fronds

Monocropping under shade

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