Most observed native rock shields
12 species, native to the US, by observations.
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Cumberland Rock Shield
Xanthoparmelia cumberlandia
11,587 observations
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Peppered Rock-shield
Xanthoparmelia conspersa
6,585 observations
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Shingled Rock Shield
Xanthoparmelia stenophylla
1,796 observations
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Plitt's Rock Shield
Xanthoparmelia plittii
1,418 observations
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Shingled Rock-shield Lichen
Xanthoparmelia viriduloumbrina
84 observations
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Colorado Rock-shield
Xanthoparmelia coloradoensis
79 observations
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Narrow-lobed Rock-shield
Xanthoparmelia angustiphylla
51 observations
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Xanthoparmelia hypofusca
16 observations
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Branching Rock-shield
Xanthoparmelia subramigera
13 observations
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Ozark Rock-shield
Xanthoparmelia hypomelaena
6 observations
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Xanthoparmelia pseudocongensis
6 observations
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Xanthoparmelia Lichen
Xanthoparmelia isidiascens
2 observations