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(First upload on October 7 2010. Last on November 28 2014) [ 日本語 | English ]

Helianthus L. (ヒマワリ) This taxa may not be used, and be grouped into Helianthus tuberosus. Inukiku-imo (イヌキクイモ, 犬菊芋), paleleaf woodland sunflower Chorogi-imo (チョロギイモ) Lifeform: perennial forb < 3 m high Distribution: native to the North America (exotic to Japan) Hokkaido Blue List: category B (immigrated to Japan in the late Edo Era)

Habitat: full to partial sun with dry to moderate moisture, e.g., roadsides Field training on biology (生命環境野外実習) Ligulate flower: ≤ 10, top = sharp ⇔ H. tuberosus Stem: erect with least hair Synonyms: Helianthus montanus E. Watson Helianthus saxicola Small

Helianthus strumosus in Hokkaido

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[1-3] at Higashi-kunebetsu Beach (東久根別) near Hakodate, southern Hokkaido, on September 21 2010.