从西伯利亚引种到北美的一种粗糙的一年生草本植物；因为其具有高草酸盐，所以对美国西部牧场的牛羊有害。

A coarse annual herb introduced into North America from Siberia; dangerous to sheep and cattle on western rangelands because of its high oxalate content.

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苘麻一种热带亚洲的一年生草本植物（苘麻属苘麻锦葵科），原产于美国，具有大而光滑的心形叶子和黄色花朵。它是中国北部的一种重要的纤维。

A tropical Asian annual herb(Abutilon theophrasti) naturalized in the United States, having large, velvety, heart-shaped leaves and yellow flowers. It is an important fiber plant in northern China.

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