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(First upload on May 5 2008. Last on June 22 2020) [ 日本語 | English ]

Taraxacum Cass. (タンポポ) Seiyou-tampopo (セイヨウタンポポ, 西洋蒲公英), common dandelion Lifeform: perennial forb (Typical exotic and weedy species to Japan) Indicator species on urbanization Distribution: temperate and cool climate regions of the world Habitat: widespread on human-disturbaed areas → Flora on Mount Usu HUSTEP: Plants and Plant communities in Japan (flora list) Seed dispersl: wind

Chromosome number: 2n = 24 or 32 (x = 8) Use: medical herb and food Synonyms: Taraxacum campylodes G. E. Haglund Varieties in North America ssp. ceratophorum (Ledeb.) Schinz ex Thellung, native to Canada and the western US (syn. Taraxacum ceratophorum (Ledeb.) DC.) ssp. officinale, the type ssp. vulgare (Lam.) Schinz et R. Keller

Taraxacum officinale in Hokkaido University Campus

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[1/2] near GSEES building in Hokkaido University (HU) Campus on April 22, 2008. [3] near the Institute of Low Temperature Science, HU, on September 9, 1989. [4] in Midori Park (Green park), East Ward, Sapporo, on May 11 2020. [5] in a court used for a smoking area in GSEES, HU, on June 3 2020. Records: numerous flowers on a waste land in N20/W5, North Ward, Sapporo, on May 14 2022. Flowering on a roadside in N23/W3, North Ward, Sapporo, on April 24 2024.