milk·weed /ˈmɪlkˌwɪd/ 名詞
Milk·weed n. Bot. Any plant of the genera Asclepias and Acerates, abounding in a milky juice, and having its seed attached to a long silky down; silkweed. The name is also applied to several other plants with a milky juice, as to several kinds of spurge. Its leaves are a favorite food source for the larvae of the monarch butterfly.
n 1: any of numerous plants of the genus Asclepias having milky
juice and pods that split open releasing seeds with
downy tufts [syn: silkweed]
2: annual Eurasian sow thistle with soft spiny leaves and rayed
yellow flower heads [syn: Sonchus oleraceus]