Hypertext Webster Gateway: "Alcanna"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
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.
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