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(First upload on October 8 2009. Last on June 16 2014) [ 日本語 | English ]

Phalaris L. (クサヨシ) Kusayoshi (クサヨシ, 草葦), reed canarygrass Etymology of Japanese name: クサ = grass + ヨシ (reed, Phragmites australis) Lifeform: deciduous, rhizomatous, perennial grass Distribution: widespread in the temperate regions of the northern hemisphere Hokkaido Blue List: A3

Habitat: along the margins of lakes and streams and in wet open areas Chromosome number: 2n = 14, 28, 27-31, 35, or 42 Synonyms: Digraphis arundinacea (L.) Trin. Phalaroides arundinacea (L.) Rausch. var. japonica (Steud.) Hack. (ホソボクサヨシ), usually not established cv. picta L. (シマヨシ), white mottles on leaf margins

Phalaris arundinacea in Hokkaido

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1 2 3 4
5 6
[1/2] at Yachidamo Park on June 20 2011. [3] near Ono Pond (大野池) in the Hokkaido University campus, Sapporo, on July 15 2011. [4] along the Route 5 between Yakumo and Oshamanbe, southern Hokkaido, on June 18 2014. [5/6] at the entrance of Shunbetsu River, south-central Hokkaido, on June 14 2016. Records: along O-sawa Course in Nopporo Forest Park on July 17 2021.