Triphragmium ulmariae «Triphragmium ulmariae^Thumbnails«Triphragmium ulmariae^Thumbnails

Triphragmium ulmariae

EN · meadowsweet rust gall LV · vīgriežu rūsa The fungus grows in the petioles and/or midribs of the perennial plant meadowsweet (Filipendula ulmaria), a member of the rose family, causing swelling and distortion. Sori develop with bright orange spores. The rust's spores reach the new meadowsweet plants via air movements. The rust has a severe effect on the survival of meadowsweet seedlings. 6102

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