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(First upload on November 27 2004. Last on August 9 2026) [ 日本語 | English ]

Trifolium L. (シャジクソウ) Kusudamatsumekusa (クスダマツメクサ, 薬玉詰草), field clover, hop clover, large hop clover or pinnate hop clover Lifeform: annual/biennial forb Distribution: native to Europe (exotic to Japan) Habitat: disturbed ground (Exotic to Japan - firstly reported in the 1940s) flora on Mount Koma and Mount Usu

Chromosome number: 2n = 16, 28 and 32

Trifolium campestre in Hokkaido

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[1/2] on the sandbar of the Honkawa River, a tributary of the Satsunai River, on June 22 2026. [3/4] on the Tomamu skislopes on July 19 2012.

Mount Koma

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[1/2] near the car pool of Mount Koma, Hokkaido, on July 28 2004. (By C. Misyoshi)

Mount Usu

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[1/2] at Y-kun Crater in Kompira Craters of Mount Usu on July 11 2025.