An introduced garden perennial that has become a common weed in fields and along roads.
Soil & Site
white, solitary heads, have white female ray florets and yellow disk florets, florets are capable of producing seed but ray florets do not produce pollen
single seeded fruit called an achene, produced by each floret
base leaves are toothed to deeply lobed and spatula shaped, stem leaves are alternate smooth and glossy
numerous single, hairless stems rising from the base, can spread by rhizomes.
up to 3 feet tall.
reproduces naturally by seeds, spreading rhizomes
Arrived with the colonist from Europe and now found throughout Canada and most of the US except for the north central plains.
syn Chrysanthemum leucanthemum
This plant has a love-hate relationship to many people. To the farmer they are noxious weeds, taking over fields. To many others they are beautiful roadside wild flowers. I have worked in gardens that were over run with this plant. The owners dug a few up and planted them in the garden. Little did they know their aggressive spreading and reseeding habit.
Notes & Reference
#19-Common Weeds ( USDA Agricultural Research Service), #81-Weeds of Northern US and Canada (Royer and Dickinson), #82-The Secrets of Wild Flowers (Sanders)