Pinus monophylla |
Pinus contorta |
|
---|---|---|
singleleaf pine |
lodgepole pine, shore pine |
|
Habit | Trees to 45 m tall; mature crown variable. | |
Buds | ovoid; reddish brown, resinous. |
|
Leaves | in clusters of 2; straight to slightly curved, twisted, 2–8 cm × 0.7–2.5 mm, dark green to yellow-green; margins finely serrulate; all surfaces with fine stomatal bands; apex usually acute; sheaths persistent. |
|
Pollen cones | ellipsoid to cylindrical, 0.5–1.5 cm long, orange-red. |
|
Seeds | obovoid, oblique and tapering at apex and base, 2–6 mm long, brown or reddish brown with black spots; wings at least twice as long as body. |
|
Trunks | to 0.8 m in diameter; straight to contorted; bark orange-brown to reddish brown, fissured to plated; branches descending to ascending; twigs yellowish orange when young; dark reddish brown with age, roughened by bud scales. |
|
Seed cones | ovoid to sub-globose, asymmetric, 2–5 cm long, light brown to reddish brown, pendent; stalks less than 1 cm long, maturing in 2 years, opening at maturity; umbos central, triangular; less than 5 mm; prickles less than 5 mm long. |
|
2n | =24. |
|
Pinus monophylla |
Pinus contorta |
|
Distribution | ||
Discussion | [This taxon does not have a floristic treatment in Flora of Oregon.] |
Western North America. 3 varieties; 2 varieties treated in Flora. With the exception of Pinus sylvestris, which one is unlikely to encounter in the wild, P. contorta is the only two-needled pine species found in Oregon. |
Source | Flora of Oregon, volume 1 | Flora of Oregon, volume 1, page 121 Stephen Meyers |
Sibling taxa | ||
Subordinate taxa | ||
Web links |
|