Worm-seed is the popular name for santonica, from which Santonin (q.v.) is extracted.
Worm-seed
Chambers's Encyclopaedia, Volume 10: Swastika to Zyrianovsk and Index, p. 744
Source scan(s): p. 0773
Worm-seed is the popular name for santonica, from which Santonin (q.v.) is extracted.