Flora of Pennsylvania

Ambrosia artemisiifolia gallery

Inconspicous ragweed that tends to cause allergies

Annual Ragweed Gallery

Leaves
Leaves
Bradford Co
by Colin Gillette on 07/28/2022
Flowers and flower buds
Flowers and flower buds
Bradford Co
by Colin Gillette on 07/28/2022
Flowers
Flowers
Bradford Co
by Colin Gillette on 07/28/2022
Flowers & leaves
Flowers & leaves
Independence Marsh (Beaver Co)
by Mark Welchley on 08/22/2014
Plant form
Plant form

A species with staminate flowers

Toftrees Woods (Centre Co)
by Maria Pavlova on 08/23/2021
Plant form & habitat
Plant form & habitat
Toftrees Woods (Centre Co)
by Maria Pavlova on 08/27/2021