Mountain Daisy - Orange Agoseris

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Orange Agoseris (Agoseris aurantiaca) is a native flowering plant in the Aster family (Asteraceae).

It typically grows in high elevation areas, giving explanation to another of its common names, mountain daisy.

The orange colored blooms superficially resemble the orange hawkweed, a non-native weed. However, orange agoseris have a single bloom per stem whereas orange hawkweed can have multiple blooms on a stem.

The multitude of aster species found in the West makes for difficult field identification. Other than mistaking it for orange hawksweed, Orange Agoseris is one of the easier to identify aster species.

© 2008 Patricia A. Michaels.