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(First upload on January 13 2008. Last on September 21 2018) [ 日本語 | English ]

Solidago L. (アキノキリンソウ) S. gigantea Aiton (オオアワダチソウ, s.l.) var. leiophylla Fernald ooawadachisou (オオアワダチソウ, 大泡立草, s.s.), giant goldenrod Lifeform: tall perennial forb < 2 m high Distribution: native to the North America (exotic to Japan) Habitat: a ruderal, establishing on roadsides, river beds, etc. (often seen on skislopes in Hokkaido HUSTEP: Plants and Plant communities in Japan (flora list) Seed dispersal: wind Chromosome number: 2n = 18, 36 or 54

Synonyms (confusing) Aster latissimifolius (Mill.) Kuntze var. serotinus Kuntze S. gigantea ssp. serotina (Kuntze) McNeill, sometimes used S. gigantea var. pitcheri (Nutt.) Shinners S. gigantea var. serotina (Kuntze) Cronquist S. gigantea var. shinnersii Beaudry S. × leiophallax Friesner S. pitcheri Nutt. S. serotina Aiton, non Retz. S. serotinoides A. Love et D. Love

Solidago gigantea in Hokkaido

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1 2 3 4
5 6 7
[1] at a southern part of the caldera rim of Mount Usu on April 25 2022. [2] at so-called 'Primival Forest' located in the Hokkaido University campus on September 9 1989. [3] near the School of Veterinary Sciences of Hokkaido University Campus on August 31 2009. [4] along a paved road in front of the Toya Lake Experimental Station of Hokkaido University on September 4 2018. [5/6] at N28/E4, East Ward, Sapporo, on August 30 2009. [7] A large grassland dominated by this species near the School of Veterinary Sciences of Hokkaido University Campus on August 31 2009.