\Al"ka*net\, n. [Dim. of Sp. alcana, alhe[~n]a, in which
al is the Ar. article. See {Henna}, {and cf}. {Orchanet}.]
1. (Chem.) A dyeing matter extracted from the roots of
   {Alkanna tinctoria}, which gives a fine deep red color.
2. (Bot.)
   (a) A boraginaceous herb ({Alkanna tinctoria}) yielding
       the dye; orchanet.
   (b) The similar plant {Anchusa officinalis}; bugloss;
       also, the American puccoon.