Flora of North America species comparison

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Juniperus deppeana

Juniperus virginiana

alligator juniper, cedro Chino, checker bark juniper

eastern red-cedar, genévrier rouge
Habit Trees dioecious, to 30 m, single-stemmed; crown narrowly erect to conical, round, or flattened.
Bark

brown, exfoliating in thin strips, that of small branchlets (5–10 mm diam.) smooth, that of larger branchlets usually not exfoliating in plates.
Branches

pendulous to ascending;

branchlets generally erect, sometimes lax to flaccid, 3–4-sided in cross section, ca. 2/3 or less as wide as length of scalelike leaves.
Leaves

green but sometimes turning reddish brown in winter, abaxial gland elliptic or elongate, conspicuous, exudate absent, margins entire (at 20x and 40x);

whip leaves 3–6 mm, not glaucous adaxially; scalelike leaves 1–3 mm, overlapping by more than 1/4 their length, keeled, apex obtuse to acute, spreading.
Seed(s)

cones maturing in 1 year, of 1 size, generally with straight peduncles, globose to ovoid, 3–6(–7) mm, blue-black to brownish blue when mature, glaucous, soft and resinous, with 1–2(–3) seeds.

Juniperus deppeana

Juniperus virginiana
Distribution
from FNA
AZ; NM; TX; Mexico
[WildflowerSearch map]
[BONAP county map]
from FNA
AL; AR; CT; DC; DE; FL; GA; IA; IL; IN; KS; KY; LA; MA; MD; ME; MI; MN; MO; MS; NC; NE; NH; NJ; NY; OH; OK; PA; RI; SC; SD; TN; TX; VA; VT; WI; WV; ON; QC; only in the flora
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 5 (1 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Varieties 2.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Seed cones 4-6(-7) mm; crown narrowly erect to conic or round; bark reddish brown; scalelike leaves acute at apex; pollen cones 3-4 mm.
var. virginiana
1. Seed cones 3-4 mm; crown flattened; bark cinnamon reddish; scalelike leaves bluntly obtuse to acute at apex; pollen cones 4-5 mm.
var. silicicola
Source FNA vol. 2. FNA vol. 2.
Parent taxa Cupressaceae > Juniperus > sect. Sabina Cupressaceae > Juniperus > sect. Sabina
Sibling taxa
J. ashei, J. californica, J. coahuilensis, J. communis, J. flaccida, J. horizontalis, J. monosperma, J. occidentalis, J. osteosperma, J. pinchotii, J. scopulorum, J. virginiana
J. ashei, J. californica, J. coahuilensis, J. communis, J. deppeana, J. flaccida, J. horizontalis, J. monosperma, J. occidentalis, J. osteosperma, J. pinchotii, J. scopulorum
Subordinate taxa
J. deppeana var. deppeana
J. virginiana var. silicicola, J. virginiana var. virginiana
Name authority Steudel: Nomencl. Bot., ed. 2 1: 835. (1841) Linnaeus: Sp. Pl. 2: 1039. (1753)
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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