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(First upload on October 9 2008. Last on June 29 2020) [ 日本語 | English ]

Geum L. (ダイコンソウ) Oodaikonsou (オオダイコンソウ, 大大根草), yellow avens Lifeform: deciduous perennial forb < 100 cm hgih Distribution: widespread in the temperate Northern Hemisphere (Europe - Russia - Asia, including northern Japan - North America) Habitat: wet meadows, swamps, woods, and forests (established in a Polygonum sachalinense grassland on the caldera rim of Mount Usu) ⇒ Flora on Mount Usu

Seed dispersal: animal (ecto-zoochore) Chromosome number: 2n = 42 ssp. aleppicum: Europe and Asia f. plenum Miyabe ex T. Inoue (ヤエオオダイコンソウ) ssp. strictum Fernald: North America. (syn. Geum strictum Aiton)

Geum aleppicum in Hokkaido

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ssp. aleppicum

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[1] at a forest edge near Utonai Lake on June 11, 2008. The leaf usually consists of three leaflets. [2-4] in the Arboretum of Hokkaido University adjacent to Poplar Boulevard in the Hokkaido University campus on May 27 2015. [5] along a forest road in the Shibecha Experimental Forest of Kyoto University, eastern Hokkaido, on June 24 2019.

f. plenum

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[1-3] in the crater basin of Mount Usu (有珠山, flora) on June 24 2020.