| 释义 |
蓼蓝liǎolán一年生草本植物,茎红紫色,叶子长椭圆形,干时暗蓝色,花淡红色,穗状花序,结瘦果,黑褐色。叶子含蓝汁,可以做蓝色染料。{knotweed indigo (Polygonum tinctorium); annual herb having reddish purple stem, long oval leaves which turn dark blue when dried, and light red flowers growing in a spike, and bearing blackish brown achenes, the blue juice from the leaves being used as a dye;}也叫also蓝{lán}。 |