milkweed

• 指多种植物的名称，尤指萝藦科马利筋属（Asclepias）植物，其特征为含有乳汁，果实为荚果，种子带有绒毛；也指一种一年生欧亚大陆的蓟类植物，叶有刺，开黄花。

A noun referring to any of various plants, especially of the genus Asclepias, characterized by milky sap and pods that release seeds with downy tufts, or to the annual Eurasian sow thistle with spiny leaves and yellow flowers.

1. Plant of genus AsclepiasB2formalscientific

   Any of various plants in the genus Asclepias, characterized by milky sap and seed pods that split open to release seeds with fluffy tufts.

   马利筋属

   • Milkweed is essential for monarch butterfly larvae.
   • The milkweed pod burst open, scattering its silky seeds in the wind.
   • Many gardeners plant milkweed to attract butterflies.
   • The milky sap of milkweed can be irritating to the skin.

   同义词cottonweedsilkweed

2. Sow thistle speciesB2formalscientific

   An annual Eurasian plant (Sonchus arvensis) with soft, spiny leaves and yellow ray-shaped flower heads, often considered a weed.

   苣荬菜

   • Milkweed (sow thistle) is common in disturbed fields and gardens.
   • The yellow flowers of milkweed bloom from June to October.
   • Farmers often remove milkweed from their crops to prevent competition.
   • The soft spiny leaves of milkweed can be used in salads when young.

   同义词sow thistle