Arrowwood :: Arrowwood (n.) A shrub (Viburnum dentatum) growing in damp woods and thickets; -- so called from the long, straight, slender shoots..
Arrowworm :: Arrowworm (n.) A peculiar transparent worm of the genus Sagitta, living at the surface of the sea. See Sagitta..
Sparrowwort :: Sparrowwort (n.) An evergreen shrub of the genus Erica (E. passerina).