Any of several plants, such as the bloodroot, whose roots yield a reddish dye.
'紫'.''''.'草'.''属植物如血根''.'草'. ''等根部可以提炼红色染料的植物.
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英英释义
Noun
1. perennial woodland native of North America having a red root and red sap and bearing a solitary lobed leave and white flower in early spring and having acrid emetic properties; rootstock used as a stimulant and expectorant