Vaccinium Cespitosum Michx. Dwarf Bilberry
Vaccinium cespitosum Michx. dwarfdwarf bilberry bilberry, Page 1 Photo by Susan R. Crispin State Distribution Photo by William W. Brodovich Best Survey Period Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Legal status: State threatened Recognition: Vaccinium cespitosum is a very small, prostrate shrub that forms low, dense mats that may Global and state rank: G5/S1S2 be up to several meters in diameter. Its small deciduous leaves, which are no more than about Other common names: blueberry 2.5 cm long and less than 1.5 cm broad, are ovate, roundish, and broadest above the middle, bearing fine, Family: Ericaceae (heath family) bristle-tipped teeth. Small (5 mm), pink, bell- shaped flowers are borne singly in the leaf axils. Total range: In eastern North America, V. cespitosum The fruit is a blue berry with a waxy whitish coating ranges from Labrador to Alaska, extending south to known as a “bloom”. In contrast to dwarf bilberry, the Newfoundland, New Brunswick, and the northern “true” blueberries have clustered flowers and much portions of New England, Michigan, Wisconsin, and larger leaves (2.5-9 cm long). The more common Minnesota. In the western mountains, its range extends round-leaved bilberry, V. ovalifolium, as well as the rare south to Colorado and California. This species is V. uliginosum, alpine bilberry, of Lake Superior shores, considered rare in Wisconsin, New York, Vermont, and have essentially untoothed leaves. Nova Scotia. Best survey time/phenology: Dwarf bilberry is best State distribution: First discovered in Michigan in identified when it is flowering in late May to early July 1980, dwarf bilberry is known from nine localities, or when in fruit from about late June through August.
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