- any of a genus (Gelsemium) of twining shrubs of the logania family, bearing fragrant yellow flowers
- the poisonous root of one variety, once used medicinally
Origin of gelsemiumModern Latin ; from Italian gelsomino, jessamine ; from Arabic y?sam?n: see jasmine
- Any of several flowering plants, of the genus Gelsemium, many of which are poisonous.
From the genus name.