Sweet woodriff
Asperula odorata L. [Rubiaceae]
Kurumabasou (クルマバソウ, 車葉草)
Lifeform: deciduous perennial forb
Distribution: North Africa - Europe / Korea - Sakhalin - Japan (Honshu - Hokkaido)
Habitat: forest floor
Asperula L. in Japan
Three species.
A. odorata L. (クルマバソウ)
A. orientalis Boiss. et Hohen. (タマクルマバソウ) [exotic to Japan]
A. trifida Makino (ウスユキムグラ) [not in Hokkkaido]
Asperula odorata in Hokkaido Univesity Campus
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[1-2] Fowers at the Keiteki-no-mori Forest on May 21 2009. [3-4] the same location on May 26 2011.