Flora of North America species comparison

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Vaccinium hirsutum

Vaccinium boreale

hairy blueberry, small cluster blueberry, woolly berry, wooly berry

bleuet boréal, northern blueberry, sweet hurts
Habit Plants forming open colonies, 2–5(–7.5) dm; twigs green, slightly angled, pilose or hairy. Plants forming small, dense colonies, 0.1–0.9 dm, (superficially rhizomatous); twigs green, (delicate), angled, (intricately branched), hairy in lines.
Leaves

deciduous;

blade green, elliptic, 23–62 × 10–36 mm, subcoriaceous, margins entire, surfaces densely hairy, eglandular abaxially.

deciduous;

blade bright green, narrowly elliptic, 8–21 × 2–6 mm, membranous, margins sharply, uniformly serrate, surfaces usually glabrous, eglandular abaxially.
Flowers

calyx green, glandular-hairy;

corolla white, cylindric, 5–9 mm, (glandular-hairy);

filaments hairy.

calyx green, glaucous, glabrous (sometimes ciliate);

corolla white to greenish white, cylindric, 3–4 mm;

filaments ciliate.
Berries

black, 7–9 mm diam., hairy.

blue, glaucous, 3–5 mm diam., glabrous.
Seeds

3–9, ca. 1 mm.

10–30, ca. 1.1 mm.
2n

= 48.

= 24.

Vaccinium hirsutum

Vaccinium boreale
Phenology Flowering summer. Flowering late spring–early summer.
Habitat Dry oak-pine ridges and mountain meadows Headlands, open, rocky uplands, alpine heaths and meadows, forest-tundra. 0-2000 m
Elevation 600-1500 m (2000-4900 ft)
Distribution
from FNA
GA; NC; TN
[WildflowerSearch map]
[BONAP county map]
from FNA
ME; NH; NY; VT; NB; NL; NS; QC
[WildflowerSearch map]
[BONAP county map]
Discussion

Vaccinium hirsutum is uncommon (but not threatened) in Tennessee, rare in North Carolina, and probably extirpated in Georgia.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 8, p. 529. FNA vol. 8, p. 528.
Parent taxa Ericaceae > subfam. Vaccinioideae > Vaccinium > sect. Cyanococcus Ericaceae > subfam. Vaccinioideae > Vaccinium > sect. Cyanococcus
Sibling taxa
V. angustifolium, V. arboreum, V. boreale, V. cespitosum, V. corymbosum, V. crassifolium, V. darrowii, V. deliciosum, V. erythrocarpum, V. macrocarpon, V. membranaceum, V. myrsinites, V. myrtilloides, V. myrtillus, V. ovalifolium, V. ovatum, V. oxycoccos, V. pallidum, V. parvifolium, V. scoparium, V. stamineum, V. tenellum, V. uliginosum, V. vitis-idaea
V. angustifolium, V. arboreum, V. cespitosum, V. corymbosum, V. crassifolium, V. darrowii, V. deliciosum, V. erythrocarpum, V. hirsutum, V. macrocarpon, V. membranaceum, V. myrsinites, V. myrtilloides, V. myrtillus, V. ovalifolium, V. ovatum, V. oxycoccos, V. pallidum, V. parvifolium, V. scoparium, V. stamineum, V. tenellum, V. uliginosum, V. vitis-idaea
Synonyms Cyanococcus hirsutus
Name authority Buckley: Amer. J. Sci. Arts 45: 175. 1843 , I. V. Hall & Aalders: Amer. J. Bot. 48: 200. 1961 ,
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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