Mayweed

Mayweed is a common name for two different species of flowering plants and also a name commonly used for several genera of the tribe Anthemideae whose species are currently in a flux of renaming:

Species with a common name of Mayweed:

Anthemis cotula
Anthemis arvensis
Oncosiphon suffruticosum

Genera commonly called Mayweed:

Matricaria
Tripleurospermum