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philbhu.com: Marble galls on Oak buds
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philbhu.com: Cherry gall on Oak leaf
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philbhu.com: Cherry gall on Oak leaf
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philbhu.com: Knopper galls on Oak buds
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Treebeard: Spring gall of the Live Oak Apple Gall Wasp
hedera.baltica: Lime nail galls
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Treebeard: Spring galls of the Live Oak Apple Gall Wasp
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Treebeard: Aphid-galled "folded leaf gall" on Coast Live Oak
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Treebeard: Spring gall of the Live Oak Apple Gall Wasp
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CrazyBugLady: Oak Apple!
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Treebeard: New flowers on Greenbark Ceanothus and a gall
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vwiest: Willow Oak Gall
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klewis4848: Oak Galls also known as Oak Apples
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Treebeard: Tiny galls on Coast Live Oak catkins
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Treebeard: Galls on leaves of native Black Sage
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Treebeard: Tiny galls on Coast Live Oak catkins
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Treebeard: First flowers of native Coast Live Oak -- and a gall!
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Treebeard: Gall Wasp (Cynipidae) on Hummingbird Sage
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Treebeard: Gall Wasp (Cynipidae) on a Hummingbird Sage leaf
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Treebeard: Lots of galls on native Black Sage
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Treebeard: Galled flowers of native California Coffeeberry
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Treebeard: Spring gall of the Live Oak Apple Gall Wasp
hedera.baltica: Oak artichoke gall
hedera.baltica: Poplar spiral gall
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Alone again. Naturally.: Oak Marble Gall (caused by the wasp Andricus kollari)
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Treebeard: Gall Wasp (Cynipidae) on an Scrub Oak leaf
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Treebeard: Galls of the Live Oak Apple Gall Wasp on Coast Live Oak
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Treebeard: Gall Wasp (Cynipidae) on an Scrub Oak leaf
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Treebeard: "Rolled leaf galls" on a Coast Live Oak leaf
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Treebeard: Galls on native Black Sage -- and a tiny Planthopper!