Bidens connata Muhl. ex Willd.
Annotated by Ben Legler, 2018.

Washington: Snohomish County: In an old golf course converted to green space, on northwest side of Lake Ballinger west of Hall Creek. Elev. 90 m.
47.787638° N, 122.332144° W
Datum: WGS 84. Uncertainty: 14 meters. Coordinate Source: Digital map.
Moist depression among rolling grassy areas; partial sun, with Bidens tripartita, B. frondosa, B. cernua, Galium palustre, Impatiens capensis, and Symphyotrichum. Heads discoid, glabrous, outer bracts larger than involucre; flower dull yellowish; anthers deep maroon; achenes prominently warty; leaves simple, with narrowly winged petioles; plants uncommon in depression. Photographed. Phenology: Flowers.

Ben Legler 14729, Sep 1, 2018
ID, Accession: 180475, Barcode: ID185622