mass noun
1
- the powdered leaves of a tropical shrub, used as a dye to colour the hair and decorate the body散沫花叶粉（染发等用）。
2
- the Old World shrub which produces these leaves, with small pink, red, or white flowers散沫花。
2.1
- Lawsonia inermis, family Lythraceae.拉丁名 Lawsonia inermis,千屈菜科。
词源
early 17th cent.: from Arabic hinnā'.