Saxifraga integrifolia Hook. × Saxifraga marshallii Greene ssp. marshallii
Annotated by W. E. Perkins, Jul 1978. Remarks: UBC. Plant A is intermediate between Saxifraga marshallii ssp. marshallii and S. integrofolia. Pollen fertility data: plant scape A total grains 198 sterile 197 fertile 1 Lacto-phenol analine blue stain. W.E. Perkins UBC Jul 1978.
Oregon: Silver Creek, 4 miles south of Silverton Oregon.
Wet grassy slope. Phenology: Flowers.
J. C. Nelson 3631, May 14, 1921
WTU, Accession: 29749A