Description:
The seed of Great Northern Germplasm was originally collected from a single population located on the cut and fill slopes of US Forest Service Road No. 5271, off Canyon Creek Road No. 316 cutoff to McGinnis Creek Road in Flathead County, Montana. The site latitude is N49?28', longitude W114?10', T32N R20W, Section 27 and 28, with a gravelly soil texture, 0-30% slope, south-to-southwest aspect, elevation 1097-1219 m, receiving 711-762 mm of annual precipitation. Collected in 1988 by Joyce Lapp, Restoration Ecologist, Glacier National Park. Great Northern was selected for top performance in vigor, height, seedhead production, and survival from among 29 accessions of native yarrows from Montana and Wyoming.