Synonyms: Aecidium compositarum, Aecidium petasitis, Aecidium tussilaginis, Pleomeris poarum, Puccinia conspicua, Puccinia petasiti, Puccinia petasitis.
Common name: Coltsfoot Gall Rust.
Extract from Wikipedia article: Puccinia poarum, the coltsfoot gall rust or meadow grass rust, is a plant pathogen. This fungal parasite forms a yellow to orange gall, 1–2 cm in diameter, on the underside of leaves of coltsfoot (Tussilago farfara). It also infects, but does not gall grasses of the family Poaceae. P. poarum is a genetically diverse species that has been reported on at least seventy plant hosts.
Persian: زنگ پای خر.
Orange-yellow rust fungus Puccinia poarum (Puccinia liatridis) on a leaf of gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020
Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Orange-yellow rust fungus Puccinia poarum (Puccinia liatridis) on basal leaves of gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Underside of basal leaves of gayfeather (Liatris) with orange-yellow rust fungus Puccinia poarum (Puccinia liatridis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Close-up of orange-yellow rust fungus Puccinia poarum (Puccinia liatridis) on basal leaves of gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Basal leaves of gayfeather (Liatris) with orange-yellow rust fungus Puccinia poarum (Puccinia liatridis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USAMushroom Observer and Facebook for learning names of local mushrooms.
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