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Plant NameTypeDescription 
RustHypericumDiseaseHypericum rust in Washington is caused by a rust fungus that does not have an alternate host. Yellow, red, or brown spots are observed on leaf surfaces. In spring and early summer, powdery orange spores are produced from fruiting bodies on the lower leaf surface. Later, in fall and early winter, tissue on the lower leaf surface becomes necrotic where infected, though orange sporulation may still be observed.