The Collaborative International Dictionary
Alcanna
Alcanna \Al*can"na\, n. [Sp. alcana, alhe?a, fr. Ar. al-hinn[=a]. See Henna, and cf. Alkanet.] (Bot.) An oriental shrub ( Lawsonia inermis) from which henna is obtained. [1913 Webster] ||
Wiktionary
alcanna
n. An oriental shrub ((taxlink Lawsonia inermis species noshow=1)) from which henna is obtained.