noun
sepal
Botanical term for the leaf-like parts that enclose a flower bud.
萼片は花の最も外側にある部分です。
Sepals are the outermost parts of a flower.
この植物の萼片は緑色で、花弁より小さい。
The sepals of this plant are green and smaller than the petals.
Compound of 萼 (がく, 'calyx') and 片 (へん, 'piece'), literally 'calyx piece'. The kanji 萼 is used specifically for the calyx in botanical terminology.