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Orange Rust

Photo by Eva Varga
Published on Project Noah
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40.5922, -122.406

Field Notes

Notes:

I observed this orange, powdery substance on the leaves of several invasive blackberry shrubs along the Sacramento River in Redding. I also observed a similar substance on the leaves of a wild rose near Burney Falls and on the stems of a pine in Whiskeytown National Recreation Area. I believe this may be Phragmidium violaceum (Schultz) but am not certain.

Species ID Suggestions

Phragmidium violaceum
Eva Varga
1

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WILD Cities: Urban Biodiversity
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The Wildlife of Shasta County
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Beauty of Decay

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PublishedJuly 5, 2012

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