woodruff

(noun) Old World fragrant stoloniferous perennial having small white flowers and narrow leaves used as flavoring and in sachets; widely cultivated as a ground cover; in some classifications placed in genus Asperula. Synonyms: sweet woodruff, waldmeister, fragrant bedstraw, Galium odoratum, Asperula odorata.

(noun) any plant of the genus Asperula.