Rose rust, Phragmidium mucronatum, tuberculatum bulbosum. Pustules (urediospores, teliospores) formed on the lower leaf surface of an ornamental rose.

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Size: 4240px × 2827px
Location: Poland
Photo credit: © Tomasz Klejdysz / Alamy / Afripics
License: Royalty Free
Model Released: No

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