Since Draba pectinipila Rollins was described in 1953, it has been assigned to several different taxonomic categories. It has been recognized at the species and variety level and has also been placed in synonymy under D. oligosperma Hook. Then Dorn (1978) described D. juniperina and contrasted it to D. pectinipila and D. oligosperma. To clarify the status of these three taxa, the evaluation included field and herbarium observations and scanning electron microscope studies.
Lichvar, Robert W.
"Evaluation of Draba oligosperma, D. pectinipila, and D. juniperina complex (Cruciferae),"
Great Basin Naturalist: Vol. 43
, Article 11.
Available at: http://scholarsarchive.byu.edu/gbn/vol43/iss3/11