Vaccinium cespitosum
Vaccinium deliciosum
airelle gazonnante, dwarf bilberry, dwarf blueberry, dwarf huckleberry
blue-leaf huckleberry, Cascade bilberry, Cascade blueberry, Cascade huckleberry, Cascades blueberry, Rainier blueberry
blades green, usually oblanceolate, sometimes obovate or narrowly elliptic, 10–30 × 3–12 mm, margins usually serrulate from apex to at least mid blade, surfaces usually glandular abaxially, usually glabrous adaxially.
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 pale green, lobes vestigial, glabrous;
corolla white, white with pink striping, or pink, cylindric-urceolate to globose, 4–7 × 3–5 mm, thin, glaucous;
filaments glabrous.
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.
usually blue, glaucous, rarely dull black, 5–9 mm diam.
usually blue, glaucous, sometimes dull black, maroon, or red, 9–13 mm diam.
ca. 1 mm.
ca. 1 mm.
= 24.
= 48.
Vaccinium cespitosum
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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