Bidens frondosa
Common Name: devil's beggarticks, sticktight
Scientific Name: Bidens frondosa L.
Family Name: Asteraceae (Compositae) - Aster or Sunflower Family
Identification Notes
Life Cycle:
native annual, reproducing by seed
Stems:
upright, branched above, smooth to slightly hairy, 4-angled, frequently purplish 
Leaves:
opposite, often simple above, pinnately compound, 3-5 leaflets; leaflets lanceolate, toothed, terminal leaflet stalked, very small hairs 
Flowers:
heads of yellow-orange disk (tubulate) florets and yellow ray (ligulate) florets when present are few, small and rounded; axillary and terminal, long stalked, leaf-like bracts at base 
Seed Pods:
flat, brown, two barbed spines at one end 
