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(Upload on June 2 2026) [ 日本語 | English ]

Blechnum L. (ヒリュウシダ) Kobushida (コブシダ*, 瘤羊歯), miniature tree fern, dwarf tree fern or silver lady fern (*: tentative) Life form: evergreen, tree-like fern, with 50-100 cm in height Distribution: New Caledonia - Vanuatu (escaped in Fiji and other Pacific islands) sensitive to drought and cold (minimum tolerance 5°C) Habitat: understory in moist, shaded tropical forests, fertile and moist soils

Chromosome number: 2n = 46 (x = 23) Use: ornamental Synonyms Oceaniopteris gibba (Labill.) Gasper et Salino Lomaria gibba Labill.

Blechnum gibbum in Japan

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[1-3] in Fukuoka Zoo and Botanical Garden, northern Kyushu, on September 20 2025.