'Hesperis matronalis' definitions:

Definition of 'Hesperis matronalis'

(from WordNet)
noun
Long cultivated herb having flowers whose scent is more pronounced in the evening; naturalized throughout Europe to Siberia and into North America [syn: damask violet, Dame's violet, sweet rocket, Hesperis matronalis]

Definition of 'Hesperis matronalis'

From: GCIDE
  • Damewort \Dame"wort`\, n. (Bot.) A cruciferrous plant (Hesperis matronalis), remarkable for its fragrance, especially toward the close of the day; -- called also rocket and dame's violet. --Loudon. [1913 Webster]