1. Noun
A dyeing matter extracted from the roots of Alkanna tinctoria, which gives a fine deep red color.
2. Noun
A boraginaceous herb (Alkanna tinctoria) yielding the dye; orchanet.
3. Noun
The similar plant Anchusa officinalis; bugloss; also, the American puccoon.
4. Noun
perennial or biennial herb cultivated for its delicate usually blue flowers
Vocabulary classified under Nature and environment
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