Spotted Knapweed – Britton and Brown 1913

Published December 27, 2018 at 600 × 900 in Spotted Knapweed – Britton and Brown 1913

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 3: 558.

Leave a Reply