Polygonum rurivagum Jordan ex Boreau
[= Polygonum aviculare ssp. rurivagum]
Annotated by Frank Lomer, 2016.

British Columbia: Rocky Mountain Trench, 3.3 km south of Windermere Lake. Elev. 805 m
50.379972° N, 115.912306° W,
Base of silty slump, at animal path through treed gulch, with Hordeum jubatum, Bassia hyssopifolia, Atriplex dioica, Symphyotrichum ericoides var. pansum, Lepidium ramosissimum. Perianth ca. 3.5 mm; tepals green with pink rim and broadly white on the outer margins; 9 stamens counted on one flower; fruit at axils of lower leaves and upwards; achenes tubercled-striate; ca. 50 plants at site, widespread in area.

Frank Lomer 10220, 2016 Jul 26
UBC, Accession: V251305