Common Name: pineappleweed, rayless chamomile, mayweedScientific Name: Matricaria matricariodes (Less.) C.L. PorterFamily Name: Asteraceae (Compositae) - Aster or Sunflower FamilyIdentification NotesLife Cycleintroduced summer or winter annual, reproducing by seed Stemsupright, smooth, hairless, branched Leaves alternate, finely dissected, hairless Flowers greenish-yellow disk (tubulate) florets; terminal cone-shaped heads, solitary or numerous per stem; ray (ligulate) florets absent Other: pineapple-like scent when bruised or crushed