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(First upload on October 3 2014. Last on June 17 2018) [ 日本語 | English ]

Thelypteris Schmidel (ヒメシダ) Nikko-shida (ニッコウシダ, 日光羊歯), Nikkod fern* (* tentative) Lifeform: short-rhizomatous, summergreen fern Distribution: China - Korea - Japan (central Honshu - Hokkaido) Habitat: mesic forests - grassy marshlands

Leaf: dimorphic (sexual and asexual leaves) → number of veins (中軸分岐数) Vein: hairy, lateral vein ≠ dichotomous Synonyms: Lastrea nipponica (Franch. et Sav.) Copel. Parathelypteris nipponica (Franch. et Sav.) Ching var. borealis (H. Hara) H. Hara (ケヒメシダ/メニッコウシダ), hairless

Thelypteris nipponica in Hokkaido

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1 2 3
4 5 6
[1-5] near Akanuma (Red Bog) in Kushiro Mire, eastern Hokkaido. [1/2] on August 30 2014. [3-5] on June 28 2015. [6] along the shore of Echigo Pond in Ebetsu City on October 8 2017.