Abies lasiocarpa var. lasiocarpa

Abies bifolia A. Murray bis:
Canada (North America)
United States (North America)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.

Canada

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

Trees to 30m; trunk to 0.45m diam.; crown spirelike. Bark gray, thin, smooth, with age somewhat furrowed and scaly (toward southern end of range bark is corky [corkbark fir]). Branches diverging from trunk at right angles, stout, stiff; twigs opposite to whorled, grayish, pubescence sparse, light brown; fresh leaf scars with light brown periderm. Buds exposed, brown, globose, small, resinous, apex rounded; basal scales long, narrow, isosceles triangular to spatulate, glabrous, resinous or not resinous, margins entire to rarely crenate, apex sharp-pointed or rounded. Leaves 1.1--2.5cm × 1.25--1.5mm, spiraled and turned upward, flexible; cross section flat, grooved adaxially, sometimes only slightly so; odor camphorlike; abaxial surface with 3--5 stomatal rows on each side of midrib; adaxial surface light green to bluish green, usually glaucous, with 3--6 stomatal rows at midleaf, rows usually continuous to leaf base, usually more numerous toward leaf apex; apex slightly notched to rounded; resin canals large, ± median, away from margins and midway between abaxial and adaxial epidermal layers. Pollen cones at pollination purplish. Seed cones cylindric, 5--10 ´ 3--3.5cm, dark purple-blue to grayish purple, sessile, apex rounded; scales ca. 1.5 ´ 2.5cm, densely pubescent; bracts included. Seeds 5--7 ´ 2--3mm, body brown; wing about 1.5 times as long as body, grayish brown; cotyledons 3--6.

Abies subalpina Engelmann

Continental, subalpine coniferous forests; 600--3600m; Alta., B.C., N.W.T., Yukon; Ariz., Colo., Idaho, Mont., Nev., N.Mex., Oreg., Utah, Wash., Wyo.

Rounded Global Status Rank: T5 - Secure

Canada

Rounded National Status Rank: N5 - Secure

United States

Rounded National Status Rank: N5 - Secure