(Upload on April 29 2015) [ 日本語 | English ]

Polygonum chinense L.

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

Polygonum L. (タデ)
Tsurubosba (ツルソバ, 蔓蕎麦), Chinese knotweed

himetsurusoba (ヒメツルソバ, P. capitatum), soba (ソバ, P. fagopyrum)

Lifeform: evergreen, perennial forb
Distribution: east Asia, incluidng Japan (south to Izu Peninsula)
Habitat: forest edges and grasslands (near sea coasts)
Flower stalk: developing glandular hair
Use: groundcover, gardening, and edible seeds

Persicaria chinensis (L.) H.Gross, when established
Ampelygonum chinense (L.) Lindl.
Polygonum umbellatum (Houtt.) Koidz.
Persicaria chinensis (L.) H. Gross var. thunbergiana (Meisn.) Okuyama
Persicaria umbellata (Houtt.) Nakai
Polygonum chinense L. var. thunbergianum Meisn.
Ampelygonum chinense (L.) Lindl. var. thunbergianum (Meisn.) Masam.


Polygonum alaskanum in Japan

[1/2] on Shiroyama nature road in Kagoshima City, southern Kyushu, on March 20 2015.