Daisy Fleabane vs Annual Fleabane
These species are visually similar and can occur together in the same habitats. E. annuus tends to inhabit moister, more disturbed habitats, whereas E. strigosus is more likely to be found in drier, slightly less disturbed habitats, and has a stronger preference for high pH soils.
Daisy Fleabane (Erigeron strigosus) | Annual Fleabane (Erigeron annuus) |
An annual or biennial plant with small, daisy-like flowers, native to much of North America. | A common annual or biennial native to Eastern North America. |
 Less numerous, smaller leaves. Foliage looks sparse. Photo © M. Squire, CC BY 4.0. |  More numerous, larger leaves. Foliage usually looks lush. Photo © Sandy Wolkenberg, CC BY 4.0. |
 Leaf margins are unserrated or have only a few, subtle serrations. Photo © Sandy Wolkenberg, CC BY 4.0. |  Leaves consistently have coarsely-serrated margins. Photo © rboles, CC BY 4.0. |
 Plants often spend considerable time growing as a dense basal rosette before growing a stem. Photo © Sandy Wolkenberg, CC BY 4.0. |
References & External Resources
These short lists show only links helpful for ID. For a complete list of references and resources also covering other aspects of ecology, visit the links section of the full article on each plant, whcih is the first entry here.
