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(Upload on January 5 2013) [ 日本語 | English ]

Polygonum L. (タデ) Miyamatanisoba (ミヤマタニソバ, 深山谷蕎麦), mountain nepalese smartweed * (* tentative) Lifeform: annual forb Distribution: Korea - Japan (except Hokkaido) Mount Takao forest for recreational use (高尾山自然休養林) Habitat: mesic forests Stem: non-erect Chromosome number: 2n = 16 ⇒ Polygonum nepalense (タニソバ)

Synonyms: Persicaria debilis (Meisn.) H. Gross ex W. T. Lee Polygonum debile Meisn. f. purpureum N. Yonez. Truellum debile (Meisner) Sojak

Polygonum debile in Japan

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[1-3] at a 6th trail near the Biwa Falls on Mount Takao (599 m elevation), Tokyo, on October 21 2013.