Habenaria

...A small orchid plant (illustration) that produces pure white flowers reminiscent of herons in midsummer. It grows naturally in low mountain wetlands, but is often cultivated. It has a spherical tuberous root underground, which it uses to overwinter. The stem is erect, 20-40 cm tall, and usually produces 3-5 leaves near the base. The leaves are broad linear and 5-10 cm long. The upper leaves are small and scale-like. In July and August, 1-3 flowers appear at the end of the stem. The flowers are about 3 cm in diameter. The sepals are small and green. The petals are white and stand upward. The lip is also white, deeply lobed into 3, and the lateral lobes are frill-like and prominent. ...

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…サギを連想させる白色の清楚（せいそ）な花を盛夏につける小型のラン科植物（イラスト）。低山の湿地に自生するが，栽培されることが多い。地下に球形の塊根があり，それで越冬する。茎は直立し，高さ20～40cm，基部近くに普通，葉を3～5枚つける。葉は広線形で長さ5～10cm。上部の葉は小さく，鱗片状になる。7～8月，茎の先に花を1～3個つける。花は径約3cm。萼片は緑色で小さい。花弁は白色，上向きに立つ。唇弁も白色，3深裂し，側裂片がフリル状に中裂し目だつ。…

※「Habenaria」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