The genus was described by Franz Unger in his 1833 work Die Exantheme der Pflanzen.

They have a worldwide distribution but large occurrences happen in North America and Europe.

The genus is generally characterized by its unicellular teliospores (thick-walled resting spores) that help to characterize it and distinguish it from another important and large rust genus, Puccinia.

[3] The Uromyces fungal species have been recorded on various host plants belonging to a wide range of the families, including Asteraceae, Euphorbiaceae, Fabaceae, Liliaceae, Loranthaceae, and Poaceae.

You can help Wikipedia by expanding it.This fungal plant disease article is a stub.