UW Burke Herbarium species comparison

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Vaccinium myrtillus

Vaccinium myrtilloides

dwarf blueberry, low blueberry

velvet-leaf blueberry
Habit Deciduous, many-branched shrub 2-3 dm. tall, the branches strongly angled, greenish, usually puberulent. Deciduous shrubs, forming open colonies, the stems 1-11.5 dm. tall; twigs greenish-brown, terete, hairy.
Leaves

Leaves ovate to elliptic-lanceolate, 1-3 cm. long, light green, strongly serrulate, strongly veiny on the lower surface.

Leaves alternate, the blades green, elliptic, 23-35 mm. long and 8-16 mm. wide, entire, usually densely hairy, without glands.
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.

Flowers solitary or few in the leaf axils;

calyx green, glabrous;

corolla urn-shaped, greenish-white to pink, 3-5 mm. long;

stamens 10, the filaments hairy;

anthers opening by pores;

ovary inferior.
Fruits

Fruit a berry, dark red to bluish, 5-8 mm. long.

Berries blue, 6-8 mm. in diameter, glabrous and glaucous

Vaccinium myrtillus

Vaccinium myrtilloides
Flowering time May-August May-June
Habitat Forest openings at middle elevations in the mountains Moist forests, peatlands.
Distribution
Occurring chiefly east of the Cascades crest in Washington; British Columbia to Oregon, east to the Rocky Mountains.
[WildflowerSearch map]
[BONAP county map]
British Columbia east to Labrador, and in the northern tier of states, Montana to West Virginia; Okanogan County in Washington.
[WildflowerSearch map]
[BONAP county map]
Origin Native Native
Conservation status Not of concern Threatened in Washington (WANHP)
Sibling taxa
V. cespitosum, V. corymbosum, V. deliciosum, V. macrocarpon, V. membranaceum, V. myrtilloides, V. ovalifolium, V. ovatum, V. oxycoccos, V. parvifolium, V. scoparium, V. uliginosum
V. cespitosum, V. corymbosum, V. deliciosum, V. macrocarpon, V. membranaceum, V. myrtillus, V. ovalifolium, V. ovatum, V. oxycoccos, V. parvifolium, V. scoparium, V. uliginosum
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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