anthropocenesketchbook: Two different types of gall on a blue oak (Quercus douglasii) leaf at Stebbi
anthropocenesketchbook: Two different types of gall on a blue oak (Quercus douglasii) leaf at Stebbins Cold Canyon in September: urchin galls housing eggs/larvae of the urchin gall wasp (Antron quercusechinus) and crystalline galls (Andricus crystallinus). Gall morphology is species-specific, and wasps are often also specialized to a single oak species. More at Wildfire to Wildflowers. I just found an AMAZING nature journaler. This artist’s got some gall. -- source link
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