Photo: Grindelia camporum 2.

Flowering plants. Kew Garden, London, UK. Planted. 2005-09-12.
Grindelia camporum Greene Engl.: great valley gumweed, grindelia, California gum plant, gum plant, hardy grindelia, rosin weed, wild sun flower, yellow tar weed. Deu.: Grindelie, Grosse Gindelie, Gummikraut. Bot. syn.: Grindelia paludosa Greene, Grindelia procera Greene, Grindelia robusta Nutt. p. p.
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Photo: Grindelia camporum 2.