Crowberry

Crowberry (Empetrum) is a small genus of dwarf evergreen shrubs that bear edible fruit. They are commonly found in the northern hemisphere, from temperate to subarctic climates, and also in the Andes of South America and on Tristan da Cunha (South Atlantic Ocean). The typical habitat is on moorlands, tundra and muskeg, but also in spruce forests. They are also found abundantly on the dune slacks and sand dunes of the Danish Island of Fanø as well as all over Iceland.

Species of crowberry include: E. nigrum (Crowberry), E. eamesii (Rockberry), E.rubrum and E. hermaphroditum. All are evergreen mat forming shrubs, with small, light green needle-like leaves 3-10 mm long. The flowers are small and plain looking. The fruit is a fairly dry black berry, smaller than the alpine bearberry, but with somewhat better flavour, and looks similar to a blueberry.

The genus and related ones such as Ceratiola and Corema[2] were for most of the 20th century classified in their own family Empetraceae, but molecular data, leaf morphology, and other considerations point to their inclusion in the Ericaceae (specifically, as a tribe within the subfamily Ericoideae). This tribe does share a number of distinctive morphological features, which seem to be associated with wind pollination.



Source : http://en.wikipedia.org/wiki/Crowberry

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