Tag Archives: Quercus chrysolepis

Oak Apple Gall

This gallery contains 8 photos.

There are over 150 species cynipid wasps that induce galls on California oaks. Barely the size of fruit flies, these wasps cause some of the most exotic plant galls displaying a variety of shapes (conical, spherical, stalked, disc-shaped, spiny, etc.) … Continue reading

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Hairy Gall Wasp

This gallery contains 5 photos.

Canyon live oaks (Quercus chrysolepis) are plentiful on Spring Hill (a “satellite” volcanic cone) at the base of Mount Shasta (Shasta County CA). When young, the evergreen, leathery leaves have spiny margins while older leaves are usually entire. Both leaf … Continue reading

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