noun
mountain avens; Dryas octopetala
A small alpine flowering plant with white petals; the Japanese name honors the botanist Chōnosuke Sugawa.
チョウノスケソウは高山の岩場に生える。
Mountain avens grows on rocky alpine slopes.
夏になるとチョウノスケソウの白い花が咲く。
In summer, the white flowers of the mountain avens bloom.
Named after the Japanese botanist Chōnosuke Sugawa (須川長之助). The suffix 草 (そう) means 'grass' or 'herb'.