the fungus trachyspora intrusa, plant parasite also called rust, on back of leaf of common lady`s mantle

agriculture alchemilla background beautiful beauty blossom bright closeup color colorful common conditions danger disease ecological ecosystem environment europe field flora floral flower fungus garden grass green health infection intrusa lady leaf macro mantle natural nature orange outdoor parasite parasites plant preservation prevention rust science season species spring summer summertime tea trachyspora urediniospores vulgaris yellow