Symphyotrichum hallii (A. Gray) G.L. Nesom
Annotated by Jess Shamek, 15 Aug 2019. Sources: Flora of PNW.

Oregon: Clackamas County: Clear Creek, upper prairie:16130 S Springwater Rd., Oregon City, OR 97045. Elev. 71 m.
45.358623° N, -122.474789° W
Datum: WGS 84. Uncertainty: 3 meters. Coordinate Source: Digital Map.
Growing in ameliorated agriculture field directly on edge of wetland area adjacent to open prairie. Growing next to standing water with tall grass and shrubs. Flowers light lavender. Perhaps this is a hybrid with Symphotrichum subspicatum. Growing with Juncus sp. Phenology: Flowers.

Jess Shamek 108, Aug 15, 2019
With Adrienne Basey
HPSU, Accession: 20790