Portulaca oleracea L.
Annotated by David Giblin, 8 Sep 2015. Sources: Flora of PNW Draft.

Washington: King County: Delta of Taylor Creek at the Lake Washington shoreline, City of Seattle. King County tax parcels 8073000525 and 8073000535. Elev. 19 ft.
47.511918° N, 122.246681° W; T23N R4E S1 NW1/4
The lake level of Lake Washington is managed by the U.S. Corps of Engineers and is the reverse of what would occur naturally. Lake elevation is lowered in the winter and elevated in the summer. Mostly in areas without other vegetation. Nearby species include Bidens sp. (opposite compound leaves); Rumex obtusiloba; Scirpus microcarpus; Mentha piperita, Plantago major, Chenopodium album, Chenopodium glaucum, Juncus effusus, Polygonum persicaria. Annual, distinctly prostrate and spreading. Petals, diminutive, yellow; fruits circumscissle. Leaves opposite, succulent. Common only at ordinary high water mark of Lake Washington in moist sand and cobble, full sun. Phenology: Flowers and Fruits.

Clayton Antieau s.n., Aug 6, 2015
WTU, Accession: 404657, Barcode: WTU-V-013004