Pineapple Weed
Matricaria discoidea (Chamomilla suaveolens)

Family: Sunflower (Asteraceae)
AKA: Disc Mayweed, Rayless Chamomile
Photo taken on: July 6, 2006
Location: Upper Loop, Skyland, GV, CO
Life Zones: Plains to montane
Habitat: Disturbed soil, roadsides

Grows from 2-16" high. Leaves are finely divided. The flower heads have no ray flowers. The crushed head smells of pineapple.

Flora of North America reference.