Empetrum eamesii Fernald & Wiegand

Empetrum eamesii, common name purple crowberry, is a North American species of dwarf evergreen shrub.

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The species forms a low-lying shrub with prostrate stems, forming a mat on the ground. Leaves are alternate or in whorls. Flowers are solitary near the tips of branches, each with 3 white petals. Fruits are spherical, pink or red in subsp. earnsii, purple to reddish-purple in subsp. atropurpureum.

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All the United States and some of the Canadian material belongs to E. eamesii subsp. atropurpureum (Fernald & Wiegand) D.Löve, which has been regarded as a separate species by some authorities but not others.

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