noun
Siberian yarrow
Specifically Achillea sibirica, a species of yarrow native to East Asia.
ノコギリソウは山地の草地で見られる。
Siberian yarrow is found in mountain grasslands.
noun
achillea; yarrow (genus Achillea)
General term for plants of the genus Achillea, including many ornamental and medicinal species.
See also: アキレア
庭にいろいろなアキレアを植えたが、ノコギリソウが一番よく育った。
I planted various achilleas in the garden, and the yarrow grew the best.
アキレア is the katakana loanword for the genus Achillea, often used in gardening contexts. ノコギリソウ is the native Japanese name, more common in everyday language.
From 鋸 (のこぎり, 'saw') + 草 (そう, 'grass, herb'), referring to the saw-toothed leaf shape. The exact historical derivation is uncertain, but the name is descriptive.