Annual Fleabane (Erigeron annuus)
A native North American plant species in the daisy family. sparsely hairy stems, which can grow to between 30 and 150 centimeters (about 1 to 5 feet) in height. Leaves are numerous and large relative to other species of Erigeron, with lower leaves, especially basal leaves, coarsely toothed or cleft, a characteristic readily distinguishing this species from most other Erigeron. Upper leaves are sometimes (not always) toothed, but may have a few coarse teeth towards the outer tips.
The flower heads are white with yellow centers, with rays that are white to pale lavender, borne spring through fall depending on the individual plant. Ray florets number 40 to 100. Grows well in full through partial sun, on sites with ample moisture. It is tolerant of a wide range of soil conditions, including gravel and clay.
Flowers are pollinated by a variety of bees, including little carpenter bees, cuckoo bees, halictine bees, and masked bees; as well as flies, including syrphid flies, bee flies, tachinid flies, flesh flies, anthomyiid flies, and muscid flies. Wasps, small butterflies, and other insects also visit the flowers to a lesser degree, seeking nectar, as well as a few pollen-feeding beetles