乳草 Traditional form: 乳草 Pinyin (reading): rǔcǎo Definitions: milkweeds (genus Asclepias) Characters: 乳 - breast, nipples; milk; to suckle 草 - grass, herbs; straw, thatch Traditional characters: 乳 - breast, nipples; milk; to suckle 草 - grass, herbs; straw, thatch