Plant Parasites of Europe

leafminers, galls and fungi

Uromyces bidenticola

Uromyces bidenticola Arthur,1917

on Bidens


no host plant alternation, spermogonia unknown. Aecia amphigenous, numerous, in small groups, honey-yellow when fresh. Uredinia amphigenous, often in a circle around the aecia, cinnamon brown, echinulate, with 2, ± equatorial spores. Telia mainly hypophyllous, up to one mm, on discoloured spots, dark brown, pulverulent, soon naked. Teliospores 28-45 µm long, one-celled, oval, wall brown, thin, smooth; pedicel persistent, hyaliene, about twice the length of the spore.

host plants

Asteraceae, monophagous

Bidens pilosus.


Klebahnia bidentis (Hennings) Arthur, 1915.


Arthur (1922a), Beltran Tejera (1976a), Brandenburger (1985a: 622), Gjaerum (1982a, 1987a), Gjaerum & Dennis (1976a), Gjaerum & Sunding (1986a), Guatimosim, Pinto, Pereira, ao (2015a).

Last modified 24.xi.2022