Polygonum ramosissimum Michx. ssp. ramosissimum
Annotated by Peter F. Zika, 2016.

British Columbia: Kamloops, ca. 12 km west, Highway 1, north side, 3 km west of Highway 5. Elev. 655 m
50.667639° N, 120.494444° W,
Disturbed open gravel at upper edge of southeast lakeshore, with Schoenoplectus maritimus, Symphyotrichum ciliatum, Distichlis spicata var. stricta, Atriplex sp. Taprooted annual; strongly erect, to 80 cm; leaves narrow, deciduous at maturity; flowers loosely spaced in leaf axils becoming closer and loosely spikelike at unbranched branch tips; achenes ± smooth, somewhat polished; ca. 100-150 at a few sites on southeast and southwest end of lake, growing tallest where soil is disturbed.

Frank Lomer 99-277, 1999 Oct 15
UBC, Accession: V234608