Canadian Horseweed
Conyza canadensis (Linnaeus) Cronquist var. canadensis
Canadian Horseweed: https://marylandbiodiversity.com/species/4245
Synonyms
Erigeron canadensis  Erigeron canadensis canadensis  Erigeron canadensis var. canadensis  Horseweed Fleabane  Leptilon canadense 
Tags
Flowers
Fruits or Seeds
None
Flower Buds
No Flowers or Fruits
Green Leaves