(First upload on August 20 2012. Last on February 28 2024) [ 日本語 | English ]
Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily
HOME > Plant list (植物リスト) > Fern (シダ類) > Thelypteridaceae (ヒメシダ科) > Thelypteris palustris
Thelypteris Schmidel (ヒメシダ)T. palustris (Salisb.) Schottadopted by: 岩槻 1992, 中池 1992, 海老原 2016 Himeshida (ヒメシダ, 姫羊歯), marsh fernSyorima (ショリマ) Lifeform: long-rhizomatous, summergreen fern Distribution: temperate regions, including Japan Habitat: wetlands, grassy marshlands, streamsides, etc. Leaf: dimorphic, 40-80 cm long
sterile frond Lateral vein: dichotomous and hairless (number of veins, 中軸分岐数) |
Chromosome number: n= 35, or 36, 2n = 70 (diploid) Synonyms:
Acrostichum thelypteris L. f. palustris (ハダカヒメシダ), hairless |
|
1
2
3
4
5
6
7
8
9
[1] at Abiragawa fen on July 16 2012. [2] in Shizukari wetland, southern Hokkaido, on June 15 2015. [3-5] along a walkboard to go Mokeuni Pond, Sarufutsu Village, northern Hokkaido, on August 27 2015. [6] along the shore of Echigo Pond in Ebetsu City on October 8 2017. [7] along the Horonai River in the Tomakomai Experimental Forest of HU on June 27 2023. [8/9] in Tomakomai Experimental Forest, used for observing succession, on September 14 2017.
1
2
3
[1-3] along a paved road in Utasai wetland, southern Hokkaido, on August 28 2018.
1
2
3
[1-3] at the Bogor Herbarium (Cibinong Branch), Indonesia, on October 25 2023. The labels are Dryopteris thelypteris and Nephrodium thelypteris on [1], Dryopteris thelypteris and Aspidium thelypteris on [2/3].