Vaccinium myrtilloides
Vaccinium deliciosum
bleuet fausse-myrtille, sour-top blueberry, sourtop, velvet-leaf blueberry, velvetleaf huckleberry
blue-leaf huckleberry, Cascade bilberry, Cascade blueberry, Cascade huckleberry, Cascades blueberry, Rainier blueberry
deciduous;
blade green, elliptic, 23–35 × 8–16 mm, membranous to subcoriaceous, margins entire, surfaces ± densely hairy (sometimes mostly on veins), eglandular, sometimes glabrescent.
blades usually glaucous, obovate, oblanceolate, or, rarely, elliptic, 17–35 × 9–17 mm, margins usually serrate for at least distal 2/3, surfaces usually glabrous, eglandular or, rarely, glandular throughout, often glandular-hairy along midvein.
calyx green, glabrous, (eglandular);
corolla greenish white to pink, urceolate, 3–5 mm, (eglandular);
filaments usually hairy.
calyx glaucous, lobes indistinct or shallow, glabrous;
corolla pink, creamy pink, or red, globose to globular-urceolate, 4–6 × 5–7 mm, thin, glaucous;
filaments glabrous.
blue, glaucous, 6–8 mm diam., glabrous.
usually blue, glaucous, sometimes dull black, maroon, or red, 9–13 mm diam.
10–40, ca. 1 mm.
ca. 1 mm.
= 24.
= 48.
Vaccinium myrtilloides
Vaccinium deliciosum
Vaccinium deliciosum produces especially flavorful berries. Research at the University of Idaho and Washington State University identified 31 aromatic flavor compounds in the fruits. Despite its outstanding flavor and large fruit size, it is harvested less than is V. membranaceum because it has a smaller range and is less abundant there than its black-fruited congener. Also, like V. membranaceum, V. deliciosum is native at higher elevations and can be difficult to grow at low elevations. Although rhizomatous, V. deliciosum has a dense root system and transplants easily.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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