Vaccinium myrtillus |
Vaccinium macrocarpon |
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dwarf blueberry, low blueberry |
cultivated cranberry, large cranberry |
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Habit | Deciduous, many-branched shrub 2-3 dm. tall, the branches strongly angled, greenish, usually puberulent. | Creeping evergreen shrub, often ascending, reaching 0.5-1.5 dm. |
Leaves | Leaves ovate to elliptic-lanceolate, 1-3 cm. long, light green, strongly serrulate, strongly veiny on the lower surface. |
Leaves alternate, glaucous upper surface, green beneath, elliptic or narrowly elliptic, 5-15 mm long, margins entire and rolled slightly downward. |
Flowers | Flowers single in the axils on pedicels 2-3 mm. long; calyx shallowly 5-lobed; corolla entire, pinkish, broadly urn-shaped; anthers with dorsal awns and apical, pore-bearing tubes; ovary inferior. |
Inflorescences emerging from axils of bracts at base of shoots from current year’s growth; pedicles bracteolate, 2-3 cm, slender, nodding; bracteoles 2, 1-2 mm wide, resembling scales, greenish white; calyx lobes small; corolla white to pink, very deeply 4-lobed, segments 6-10 mm, strongly reflexed; filaments hairy, 1/3 length of anthers, anthers 1-2 mm. |
Fruits | Fruit a berry, dark red to bluish, 5-8 mm. long. |
Berries globose, smooth, reddish to pink, 10-15 mm. |
Vaccinium myrtillus |
Vaccinium macrocarpon |
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Flowering time | May-August | May-July |
Habitat | Forest openings at middle elevations in the mountains | |
Distribution | Occurring chiefly east of the Cascades crest in Washington; British Columbia to Oregon, east to the Rocky Mountains.
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Occurring west of the Cascades crest in Washington; British Columbia to California, also in Idaho; native to eastern North America.
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Origin | Native | Introduced from northeastern United States |
Conservation status | Not of concern | Not of concern |
Sibling taxa | ||
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