Sidalcea campestris Greene × Sidalcea hirtipes Hitchc. ?
Annotated 14 Mar 2012. Sources: H&C. Remarks: The original determination of S. hirtipes is not quite accurate due to the long inflorescence >15 cm and lightly veined carpels. Steve Hill, FNA author for Sidalcea, suggests that it is a hybrid between S. hirtipes and S. campestris.

Washington: Lewis County: Area originally Lacamas Prairie.
T12N R1W S34
Datum: NAD 27. Uncertainty: 805 meters. Coordinate Source: TRS2LL.
Area originally [omitted] Prairie, now primarily used for pasture. Some shrub invasion of the site. Associates include Rubus discolor. Approximately 100 stems along a fencerow in an area ca. 10' x2'. Phenology: Flowers & Fruits.

D. Salstrom 93713, Jul 13, 1993
WTU, Accession: 333388

Sidalcea campestris Greene × Sidalcea hirtipes Hitchc.
Annotated by D. Giblin, Ben Legler, 21 May 2015.

Washington: Lewis County: 11 miles south of Chehalis.
46.502973° N, 122.96278° W,
Datum: WGS 84. Uncertainty: 1000 meters. Coordinate Source: GeoLocate.
In heavy soil, rhizomatous (shortly). Plants abundant, in large clumps, flowers about color of S. Cusickii, mature carpels prominently pitted, about 4 millimeters long, beak about 0.75 millimeter long, stamens in 2 series of phalanges. Phenology: Flowers.

C. L. Hitchcock 19902, Jun 30, 1953
WTU, Accession: 154335

Sidalcea campestris Greene × Sidalcea hirtipes Hitchc.
Annotated by D. Giblin, Ben Legler, 21 May 2015.

Washington: Lewis County: 11 miles south of Chehalis.
46.502973° N, 122.96278° W,
Datum: WGS 84. Uncertainty: 1000 meters. Coordinate Source: GeoLocate.
In open field. Phenology: Fruits.

C. L. Hitchcock 20044, Jul 6, 1953
WTU, Accession: 156839