Coleosporium asterum

Summary

Coleosporium asterum is a species of rust fungus in the family Coleosporiaceae. It infects species in the Asteraceae family, such as those in genus Aster and Solidago, as well as the needle pines Pinus contorta and P. banksiana. It has been recorded on aster family species Canadanthus modestus, Eurybia conspicua, Solidago missouriensis, Symphyotrichum ciliolatum, S. laeve, and numerous others.