Isolepis setacea (L.) R. Br.
Annotated by Ben Legler, Aug 2016.

Washington: King County: Mouth of Tibbetts Creek, at south end of Lake Sammamish. Elev. 10 m.
47.556719° N, 122.073731° W
Datum: WGS 84. Uncertainty: 4 meters. Coordinate Source: GPS.
Small, sandy creek delta with low cover of Cyperus bipartitus, Eleocharis acicularis, Juncus bufonius, backed by thickets of Phalaris arundinacea and Cornus stolonifera. Achenes ribbed and finely transverse-ridged; plants in small dense tufts in damp sand, the stems spreading and prostrate (possibly from trampling); occasional. Photographed. Phenology: Flowers & Fruits.

Ben Legler 14328, Aug 24, 2016
With Peter F. Zika
WTU, Accession: 418938, Barcode: WTU-V-041993