Tripleurospermum inodorum   false or scentless mayweed
           (Alt: Matricaria maritima )
  
Asteraceae (Alt: Compositae )
non-native                      herbaceous           
Distribution: South Boise
Bloom: Aug - Oct

UW Burke Herbarium Link: Tripleurospermum inodorum
USDA Plants Link: Tripleurospermum inodorum   (TRMAM)
Flora of North America Link: Tripleurospermum inodorum


False mayweed (Tripleurospermum inodorum) is currently known in the Boise Front only from Hubbard Reservoir.  It superficially resembles the somewhat more common true mayweed (Anthemis cotula), but has more finely divided leaves, distinctively 4-angled achenes, and no spike-like bracts on the receptacle.