About Podosphaera filipendulae (Z.Y.Zhao) T.Z.Liu & U.Braun
Podosphaera filipendulae is a fungal species classified in the genus Podosphaera and the order Erysiphales. It was first described with meadowsweet (Filipendula ulmaria) recorded as its host plant. Podosphaera filipendulae is morphologically identical to Podosphaera spiraeae, and the two were previously considered synonymous. However, DNA sequencing can distinguish between isolates of the two species, so they are currently recognized as separate species. This fungus is a pathogen of meadowsweet that causes powdery mildew on the plant's leaves and flower heads, and distorts their growth. Signs of the fungus can be visible throughout the host's growth cycle, from spring to autumn. It produces chains of oval conidia, as well as groups of cleistothecia.
