フィールド日記
2025.02.18
オニシバリ
オニシバリが咲いています。樹林内に見られる落葉低木ですが、多くの落葉樹とは反対に冬に葉をつけて、夏に落葉します。ふつうオニシバリの花は、がくの先端が４枚に分かれて花弁状になりますが（写真2枚目）、1枚目の写真のように６枚に分かれた花を見つけました。同じ木の他の花はふつうの花だったので、たまたまこの花だけが変異したようです。
"Onishibari (オニシバリ)" plants are in bloom. They are the deciduous trees that grow in forests. They spread their leaves in winter and fall them in summer, which behaves oppositely to most deciduous trees. Their flowers ordinarily consist of four splitted sepals ( as you can see in the second photo). However, I found a flower that consists of six splitted sepals seen in the first photo. Only that flower was mutated by chance because the others on the same tree have ordinary flowers.
