Synonyms: Chamomilla suaveolens, Matricaria matricarioides
Pineapple-weed is a weedy annual species with branching, leafy stems from 5-40 cm tall. The leaves are 1-3 times compound pinnate and often 1-5 cm long. The leaflet segments are linear or filiform. The heads number several to many. They are rayless, with the disk being greenish yellow and thimble-shaped. The herbage is pineapple-scented when crushed.
Pineapple-weed is found in disturbed or waste places, often along roads, in fallow fields, and in yards.
Pineapple-weed is widely found over much of North America and Europe.
In the Columbia River Gorge, it is primarily found at the west end of the gorge, and again in mid-gorge, usually in very disturbed areas.