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Polygonum persicaria L.






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

Polygonum L. (タデ)

Harutade (ハルタデ, 春蓼), lady's thumb, spotted lady's thumb, Jesusplant, and redshank
Lifeform: annual forb
Distribution: cosmopolitan (originally in Eurasia)
Habitat: roadsides, riverbanks, paddy fields, and on fallow grounds
Chromosome number: 2n = 22
Synonyms

Persicaria maculata auct. non (Raf.) A. et D.Love

Persicaria maculosa Gray ssp. hirticaulis (Danser) S.Ekman et T. Knutsson var. pubescens (Makino) Yonek.

Persicaria Mill when established
Persicaria maculosa Gray
ssp. hirticaulis (Danser) S. Ekman et T. Knutsson (ハルタデ, s.l.)

var. amblyophylla (H. Hara) Yonek. (シラカワタデ)
var. pubescens (Makino) Yonek. (ハルタデ)

ssp. maculosa (ヨウシュハルタデ)
索引

Polygonum persicaria in Japan


ST1 ST2
[1/2] near JR Sakuragi Station, Yokohama, on January 21 2014.

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