#Fleabane #Erigeron #annuus is an #invasive #neophyte in #Europe, originally mative from Canada to Florida (USA). It arrived in Europe and #Asia as an ornamental plant in the 18th century and became naturalized.
C. Wang et al. (2020) studied it in China finding one #alienspecies be able to "generate a #favorable" #speciescommunity #habitat that is beneficial for following ones, using #Solidago #canadensis as 2nd alien.

©#StefanFWirth #Berlin 2025

Ref
https://doi.org/10.1016/j.scitotenv.2020.137128

#Photos
©S F.Wirth