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(Upload on February 19 2016) [ 日本語 | English ]

Hydrocotyle sibthorpioides Lam.






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

Hydrocotyle L. (チドメグサ), water pennywort
Chidomegusa (チドメグサ, 血止草), lawn pennywort, lawn marshpennywort or lawn water-pennywort
Lifeform: weedy, stoloniferous, evergreen, perennial forb
Distribution: Japan (except Hokkaido) - Korea - China - Australia - Africa
Habitat: sunny and mesic sites (roadsides, grasslands, forests, etc.)
Flower stalk: shorter than leaf
Chromosome number: 2n = 24
Use: medicine (Chidome = blood stanching)
Synonyms:
Varieties when established (usually treated as distinct species)
var. dichondroides (Makino) M. Hiroe (ケチドメグサ)
var. pauciflora (Y. Yabe) T. Yamaz. (ヒメチドメ)
var. tuberifera (Ohwi) T. Yamaz. (オキナワチドメグサ)
var. batrachium (Hance) Hand.-Mazz. ex R. H. Shan (タカサゴノチドメ)
索引

Hydrocotyle sibthorpioides in Japan


ST1 ST2 ST3
[1-3] in Oi Pier Seaside Park, Tokyo, on December 26 2015.

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