noun
yarrow; milfoil
Refers specifically to Achillea millefolium, a common flowering plant used in herbal medicine and gardening.
セイヨウノコギリソウはハーブティーに使われることがある。
Yarrow is sometimes used in herbal tea.
Katakana spelling is standard for this plant name; usually written in kana.
Kanji spelling is rare and mainly found in botanical contexts; learners will almost always encounter the katakana form.
Compound of 西洋 (seiyō, 'Western') and 鋸草 (nokogirisō, 'yarrow', literally 'saw grass', from the shape of the leaves). The katakana spelling reflects its status as a scientific/common name for a non-native plant.