Rose photo courtesy of Margaret Furness

R rubiginosa left, R canina right, as collected from roadsides in South Australia, where both are declared weeds. Differentiated by pinch-and-sniff. In my area of the Adelaide Hills, the sweetbriar starts flowering later, is darker pink, and I think more prickly. Mid-late spring, zone 9b.

Uploaded 1 NOV 18

Rose photo courtesy of Johno

SPECIES ROSE COLLECTION, TIMARU BOTANIC GARDENS, NZ

Uploaded 4 MAR 18

Rose photo courtesy of jedmar

From "An Illustrated Manual of California Shrubs", Howard E. McMinn, 1939, p. 180: Rosa rubiginosa, a. Branchlet with leaves and flower, b. Fruit, c. Thorns on branchlet Courtesy of Google

Uploaded 27 OCT 18

Rose photo courtesy of jedmar

From "Die Rosen nach der Natur gezeichnet und colorirt", by Carl Gottlob Rössig, 1801, No. 25: Hip of Rosa rubiginosa Courtesy of archive.org

Uploaded 4 DEC 17