Pseudotsuga menziesii var. glauca

(Mayr) Franco

Bol. Soc. Brot. ser. 2, 24: 77. 1950.

Common names: Rocky Mountain Douglas-fir pino real colorado
Illustrated
Basionym: Pseudotsuga douglasii var. glauca Mayr Wald. Nordamer., 307, plate 6. 1890
Treatment appears in FNA Volume 2.

Trees to 40 (–50) m; trunk to 1.2m diam. Leaves bluish green to dark green or gray-green. Seed-cones 4–7cm; bracts spreading, often reflexed. 2n =26.


Habitat: Coniferous or mixed forests
Elevation: 600–3000m

Distribution

V2 312-distribution-map.gif

Alta., B.C., Ariz., Colo., Idaho, Mont., Nev., N.Mex., Oreg., Tex., Utah, Wash., Wyo., Mexico

Discussion

Selected References

None.

Lower Taxa

None.

"relatively thin" is not a number.

obtuse +  and acute +
pendent +  and deflexed +
cylindric +, ovoid +  and ellipsoid +
Barney Lipscomb +
(Mayr) Franco +
reddish-brown +
Pseudotsuga douglasii var. glauca +
reflexed +  and spreading +
not resinous +
conspicuous +
elongate +
Rocky Mountain Douglas-fir +  and pino real colorado +
4 cm40 mm <br />0.04 m <br /> (7 cm70 mm <br />0.07 m <br />) +
flattened +  and conic +
Alta. +, B.C. +, Ariz. +, Colo. +, Idaho +, Mont. +, Nev. +, N.Mex. +, Oreg. +, Tex. +, Utah +, Wash. +, Wyo. +  and Mexico +
600–3000m +
Coniferous or mixed forests +
flush +  and raised +
short-stalked +
alternate +  and singly +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
bluish green;dark green or gray-green +
persisting +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
6 (?) +  and 8 (?) +
flattened +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not winged +  and 2-winged +
ovoid +  and ellipsoid or cylindric +
Bol. Soc. Brot. +
fibrous;woody +
arranged +  and overlapping +
persistent +
flattened +
grouped +  and solitary +
long-persistent +
4 cm40 mm <br />0.04 m <br /> (10 cm100 mm <br />0.1 m <br />) +
3 cm30 mm <br />0.03 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
reduced;well-defined short +
Illustrated +
Abies mucronata +, Pseudotsuga douglasii +, Pseudotsuga mucronata +  and Pseudotsuga taxifolia +
Pseudotsuga menziesii var. glauca +
Pseudotsuga menziesii +
variety +
decurrent +  and elongate +
glabrous +  and pubescent +
slender +
4,000 cm40,000 mm <br />40 m <br /> (5,000 cm50,000 mm <br />50 m <br />) +
reduced +