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(First upload on March 5 2017. Last on February 3 2024) [ 日本語 | English ]

Psilotum nudum (L.) P. Beauv.






Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily

Psilotum L. (マツバラン)
Matsubaran (マツバラン, 松葉蘭), whisk fern, or skeleton fork fern
Houkiran (ホウキラン, 箒蘭)
Lifeform: evergreen fern
Distribution: widespread mostly in tropical and subtropical regions and partly in temperate regions, including the south to the Chubu District of Japan (the northern limit reported from Miyagi Prefecture)

Red Data Book: NT

Habitat: on rockes and trees (epiphytes) Morphology:

Stem: dichotomous branching
Leaf and root: absent (stems supported by the rhizomes)

Use: gardening (traditionally used after Edo Era in Japan)
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Psilotum nudum in a greenhouse


ST1 ST2 ST3
ST4 ST5 ST6
[1-3] grown in a greenhouse, CAST, HU, on January 24 2017. [4] at Okuma Garden in Waseda University, Tokyo, on March 15 2017. [5/6] in the greenhouse of Hokkaido University Botanic Garden on September 30 2023.

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