Observation 68857: Puccinia monoica Arthur

When: 2011-06-09

Collection location: Yuba Pass, Tahoe National Forest, Sierra Co., California, USA [Click for map]

Who: Darvin DeShazer (darv)

No specimen available


Proposed Names

92% (2)
Recognized by sight

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Add Comment
By: damon brunette (damonbrunette)
2011-06-10 16:10:58 CDT (-0400)
By: Darvin DeShazer (darv)
2011-06-10 14:22:09 CDT (-0400)

This is a rust that deforms the host and makes pseudoflowers out of the leaves. This tricks insects to try and pollinate the fake flowers and they actually move the fungal gametes to the next plant to complete the sexual cycle of the rust.
A better photo and more info at wikipedia: