Disc Mayweed, Pineapple Weed
Synonyms: Chamomilla suaveolens, Matricaria matricarioides
Plants have a pleasant chamomile smell to them, with perhaps a fragrance of
pineapple mixed in.
Pineapple weed as seen along the Old Headquarters Road in the Klickitat State Wildlife Area of south-central Washington..........May 31, 2009.