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(Upload on June 28 2025) [ 日本語 | English ]

Polystichum Roth (イノデ) Hakone-inode (ハコネイノデ, 箱根猪手) Lifeform: large, rhizomatous, evergreen fern Distribution: regions where the two parental species coexist Habitat: forest floors Chromosome number: n = 82 (tetraploid)

Putative hybrid between P. pseudomakinoi Tagawa (サイゴクイノデ) and P. longifrons Kurata (アイアスカイノデ) leaf shape ≈ P. lon. leaf top ≈ P. pse. (sharp) petiole > P. pse. l

Polystichum × hakonense in Japan

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[1-3] on a forest road towards Hyakkennzan Canyons (百間山渓谷), Wakayama Prefecture, on June 26 2024.