(First upload on November 21 2018. Last on October 12 2022) [ 日本語 | English ]
Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily
HOME > Plant list (植物リスト) > Polygonaceae (タデ科) > Polygonum affine
Polygonum L. (タデ)Himarayatorano-o (ヒマラヤトラノオ, 喜馬亜虎尾), Himalayan Fleeceflower or dwarf fleeceflowerLifeform: creeping, densely tufted, mat-forming perennial forb Distribution: Afghanistan - eastern Nepal (3000–4800 m elevation) Habitat: grassy slopes and rocky fissures Leaf: developing fine teeth |
Synonyms:
Persicaria affinis (D. Don) Ronse Decr., used when Persicaria is established |
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[1-3] in a small flower garden near L Plaza Building, North Ward, Sapporo, on October 15 2018. [4-6] within a flower bed under a street tree in N10/W4, North Ward, Sapporo, on June 3 2022.
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Synonyms (commonly used): Persicaria amplexicaulis (D. Don) Ronse Decr. Bistorta amplexicaulis (D. Don) Greene Himarayatade* (ヒマラヤタデ, 喜馬亜蓼), red bistort or mountain fleece Lifeform: prennial forb ≤ 1.2 m tall |
Distribution: China - Himalayas - Pakistan Habitat: moist mountain slopes, stream banks, river margins or damp meadows Use: ornamental and gardening - many cultivars |
Other synonyms: Bistorta henryi Yonek. et H. Ohashi, Bistorta oxyphylla (Wall. ex Meisn.) Greene, Bistorta petiolata (D. Don) Petrov, Bistorta speciosa Greene, Polygonum oxyphyllum Wall. ex Meisn., Polygonum petiolatum D. Don |
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[1-3] in Fukuoka Zoo and Botanical Garden, northern Kyushu, on September 20 2025. Note that the leaves in photos are mostly from Polygonum japonicum.