Most observed native Pucciniomycotina
10 species, native to the US, by observations.
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Cedar-apple Rust
Gymnosporangium juniperi-virginianae
16,569 observations
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Mayapple Rust
Allodus podophylli
6,884 observations
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Quince Rust
Gymnosporangium clavipes
4,757 observations
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Blackberry Orange Rust
Gymnoconia peckiana
3,549 observations
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Mustard Flower Rust
Puccinia monoica
2,213 observations
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Spruce Witch's Broom Rust
Chrysomyxa arctostaphyli
1,639 observations
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Honeysuckle Leaf Blight
Insolibasidium deformans
1,554 observations
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Coyote Brush Rust
Puccinia evadens
1,110 observations
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Chamaesyce Rust
Uromyces proeminens
212 observations
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Puccinia xanthii
123 observations