Eutrochium spp.–Joe-Pye Weeds Eutrochium spp.–Joe-Pye Weeds Eutrochium spp.–Joe-Pye Weeds Eutrochium spp.–Joe-Pye Weeds Botanical Family Asteraceae Bloom Time July to September Pollen Characteristics Dispersal Unit Monad Aperture Number 3 Aperture Type Compound Ornamentation Echinate Tectum Semitectate Size Shape Round Share this:TwitterFacebookLike this:Like Loading...