rust (Puccinia helianthi ) on common sunflower (Helianthus annuus ) - 5357245

rust
Puccinia helianthi Schwein.

Host: common sunflower (Helianthus annuus L.)
Descriptor: Sign
Description: Sexual spores of sunflower red rust (Puccinia helianthi) on a volunteer sunflower plant (Helianthus annuus).
Image type: Field
Image view: Dorsal / Abaxial / Back
Image location: United States

Photographer Information

Name: Howard F. Schwartz
Organization: Colorado State University
Country: United States

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Image Number: 5357245

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Image Citation:(?) Howard F. Schwartz, Colorado State University, Bugwood.org

Node Affiliation: Colorado State University

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Image uploaded on Friday, January 18, 2008
Image Information last updated on Thursday, March 27, 2008