
n.
- A European perennial herb (Alkanna tinctoria) having cymes of blue flowers and red roots.
- The root of this plant or the red dye extracted from the root.
- Any of various hairy plants of the Eurasian genus Anchusa, having blue or violet flowers grouped on elongated cymes.
[Middle English, from Old Spanish alcaneta, diminutive of alcana, henna, from Medieval Latin alchanna, from Arabic al-ḥinnā', the henna : al-, the + ḥinnā', henna; see henna.]




