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Engelmann spruce, Engelmann's spruce, pino real, épinette d'Engelmann

Photo is of parent taxon

Engelmann spruce

Habit Trees to 60m; trunk to 2m diam.; crown narrowly conic.
Bark

gray to reddish brown.

Branches

spreading horizontally to somewhat drooping;

twigs not pendent, rather stout, yellow-brown, finely pubescent, occasionally glabrous.

Buds

orange-brown, 3–6mm, apex rounded.

Leaves

1.6–3(–3.5)cm, 4-angled in cross section, rigid, blue-green, bearing stomates on all surfaces, apex sharp-pointed.

Seed

cones 3–7(–8)cm;

scales diamond-shaped to elliptic, widest above middle, 13–20 × 9–16mm, flexuous, margin at apex irregularly toothed to erose, apex extending 3–8mm beyond seed-wing impression.

2n

=24.

Picea engelmannii

Picea engelmannii var. engelmannii

Habitat Montane and subalpine forests
Elevation 1000–3000m (3300–9800ft)
Distribution
from FNA
AZ; CA; CO; ID; MT; NM; NV; OR; UT; WA; WY; AB; BC; Mexico
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ; CA; CO; ID; MT; NM; NV; OR; UT; WA; WY; AB; BC; Mexico
Discussion

Varieties 2 (1 in the flora).

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

Only Picea engelmannii var. engelmannii occurs in the flora. In Mexico the species is also represented by P. engelmannii var. mexicana (Martínez) R. J. Taylor & T. F. Patterson.

Although Picea engelmannii varies considerably over its broad distributional range, the variation is continuous, militating against recognition of multiple varieties (R.J. Taylor and T.F. Patterson 1980). In the northern part of its range, it hybridizes freely and completely intergrades with P. glauca, as noted above.

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

Source FNA vol. 2. FNA vol. 2.
Parent taxa Pinaceae > Picea Pinaceae > Picea > Picea engelmannii
Sibling taxa
P. abies, P. breweriana, P. glauca, P. mariana, P. pungens, P. rubens, P. sitchensis
Subordinate taxa
P. engelmannii var. engelmannii
Synonyms P. glauca subsp. engelmannii, P. columbiana, P. engelmannii var. glabra
Name authority Engelmann: Trans. Acad. Sci. St. Louis 2: 212. (1863) Engelmann
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