Actaea

...A perennial plant of the Ranunculaceae family that grows in deep mountain forests (illustration). It was named after the leaves that resemble those of Cimicifuga japonica (Cimicifuga japonica). It has a well-developed rhizome, and the stem is 40-70 cm tall, unbranched, and bears 2-3 large stem leaves. There are no basal leaves at the base of the stem, but there are several large scales. The stem leaves are compound, 2-4 times trifoliate, and the leaflets are ovate or narrowly ovate, sometimes divided into three parts, and have coarse serrations. In May and June, a short raceme appears at the end of the stem, and white flowers grow densely. The sepals are white and petal-like, but fall off quickly. ...

*Some of the terminology that mentions "Actaea" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…深山の林のなかに生えるキンポウゲ科の多年草（イラスト）。葉がショウマ(サラシナショウマ)に似るところからつけられた。よく発達した根茎があり，茎は高さ40～70cm，分枝せず，2～3枚の大きな茎葉をつける。茎の基部に根生葉はなく，数枚の大きな鱗片がある。茎葉は2～4回3出複葉で，小葉は卵形ないし狭卵形，ときに3裂し，あらい鋸歯がある。5～6月，茎の先に短い総状花序を出し，白い花を密につける。萼片は白く花弁状であるが，早く落ちる。…

※「Actaea」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報