IUCN threat status:

Near Threatened (NT)


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Range Description

This species can be found in the USA along the Columbia River Gorge in the Washington and Oregon Cascades, and as four populations near Mount Saint Helens and just south of Mount Rainier. It is found at altitudes up to 1,036m asl (Leonard et al. 1993).


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© International Union for Conservation of Nature and Natural Resources

Source: IUCN

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