ユウゲショウは夜、密かに小さな花を咲かせるので花言葉も「臆病」ですが、淡い桃色の花弁に濃い赤色の筋が入り、とても艶やかな花です。
Rose evening primrose secretly blooms small flowers at night, so the flower language is “cowardly”, but it is a very bewitching flower with dark red streaks on the pale pink petals.
【仮名】ユウゲショウ, アカバナユウゲショウ
【和名】夕化粧, 赤花夕化粧
【英名】Rose Evening Primrose
【学名】Oenothera rosea
【誕生】07/ 22, 07/ 28
【開花】05, 06, 07, 08, 09月
【花色】Pink
ユウゲショウ
ユウゲショウの自生
ユウゲショウはアカバナ科の多年草です。原産地は北米南部～南米で、日本へは明治時代に観賞用で持ち込まれて野生化。関東以西の道端などで自生しています。茎は叢生し、葉が互生。葉は披針形で縁に浅いギザギザが入りますが、地際では不規則に切れ込みが入ることもあります。
ユウゲショウの名前
ユウゲショウの名前の由来は、花が夕方から咲き始めるため。ただし、マツヨイグサ属の他種と違って昼も咲いています。種名のロセアは花色に因んで「バラのような（赤色の）」という意味。オシロイバナの通称も同じ「夕化粧」で紛らわしいため、「赤花夕化粧」とも呼ばれます。
ユウゲショウの花
ユウゲショウの丸い４枚の花弁は淡い桃色に濃い赤色の筋が入り、中心が黄緑色。雄しべは８本で葯が白く、雌しべは先端が赤く十字型です。花後は蒴果を生じ、熟して雨に濡れると下のほうが裂けて種子を飛散。夜、小さな花が咲くので、花言葉も「臆病」ですが、艶やかな花です。
Rose Evening Primrose
Rose evening primrose native
Rose evening primrose is a perennial plant of the Onagraceae family. The place of origin is from southern North America to South America, and it was brought to Japan for ornamental purposes during the Meiji era and became wild. It grows naturally on the roadside west of Kanto. The stems are crowded and the leaves are alternate. The leaves are lanceolate and have shallow jagged edges, but may have irregular cuts near the ground.
The name of rose evening primrose
The name of rose evening primrose comes from the fact that the flowers start to bloom in the evening. However, unlike other species of the genus Evening Primrose, it blooms in the daytime. The species name Rosea means “rose-like or red” after the flower color. It is also called “Red Flower Evening Primrose”, because it is confusing with the popular name of Marvel of Peru “Evening Primrose”.
Rose evening primrose flowers
The four round petals of rose evening primrose are pale pink with dark red streaks and a yellow-green center. The stamens are 8 and the anthers are white, and the pistils are red at the tip and cross-shaped. After flowering, it produces capsules, and when it ripens and gets wet in the rain, the lower part tears and the seeds scatter. Small flower blooms at night, so the flower language is “cowardly”, but it is a bewitching flower.
