Foto n. 143573 - gumweed (Grindelia squarrosa)
NPS Photo - Photographer unknown - 1961 - Public domain image.
File size: 37223 bytes - Views: 212
Foto n. 9553 - gumweed (Grindelia squarrosa)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 3: 371.
File size: 50212 bytes - Views: 197
Foto n. 143575 - gumweed (Grindelia squarrosa)
NPS Photo - JW Stockert - 1973 - Public domain image.
File size: 31592 bytes - Views: 219