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(First upload on December 25 2015. Last on November 16 2018) [ 日本語 | English ]

Tricyrtis hirta (Thunberg) Hooker






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

Tricyrtis Wall. (ホトトギス) in Japan
Hototogisu (ホトトギス, 杜鵑草), hairy toad lily
Life form: perennial forb
Distribution: endemic to Japan (central and southern parts)
Habitat: shaded rocky cliffs, stream banks, etc. basically in moist sites
Hair on stem: upward ↔ downward = T. affinis
Chromosome number: 2n = 26
Synonyms (discarded varieties):

- var. saxicola Honda (イワホトトギス)
- var. minor Honda (オガサホトトギス)
- f. atropurpurea Hisauti (マダラホトトギス)

var. masamunei (Makino) Masam. (サツマホトトギス), in Kyushu
f. albescens (Makino) Hiyama (シロホトトギス), white flower
f. nivea Hiyama (ユキホトトギス)
+ Cultivars
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Tricyrtis hirta in Japan


ST1 ST2 ST3
ST4 ST5 ST6
[1/2] in Hama-rikyu Gardens, Tokyo, on November 13 2015. [3] near the Shimizudani Park, close to Sophia University, on October 19 2018. [4] in the Shimizudani Park, close to Sophia University, on November 24 2017. [5/6] in the Koishikawa-Korakuen Gardens (小石川後楽園), Tokyo, on November 18 2016.

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