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Singleleaf Pinyon Pine (Pinus monophylla)
Evergreen Trees (Conifers), Vegetation Around Las Vegas
 
Singleleaf Pinyon Pine
Typical habitat at Red Rocks.

General: Singleleaf Pinyon Pine (Pinus monophylla) is a coniferous (cone-bearing) tree with round needles that radiate in all directions from the twigs. The cones are egg-shaped and 2- to 3-inches long. This species can be recognized by the single, round needle (other pines have bundles of needles).

In Nevada, Singleleaf Pinyon Pine is a common component of the montane vegetation in all mountain ranges the Upper Sonoran (Pinyon-Juniper Woodland) life zone. This is the only pinyon around Las Vegas. To the east in Zion and the Grand Canyon, the Two-needle Pinyon Pine (Pinus edulis) is the common pinyon.

Singleleaf Pinyon Pine
Typical habitat in the Sheep Range.

Family: Pine (Pinaceae).

Other Names: Pinus californiarum.

Plant Form: Short, spreading tree with a rounded crown.

Height: To 35 feet.

Trunk: To 1.5 feet diameter.

Pinyon Pine
Note the single, undivided needles.

Bark: Smooth when young, aging to dark brown, furrowed into scaly ridges.

Branches: Many long, twisting branches giving the tree a rounded appearance.

Needles: Bundles of 1; 1 to 2-inches long; light green to gray-green, slightly curved towards branch.

Cones: Erect; 1 to 5 inches; oval; green, aging to light brown or reddish-brown. Scales thick, blunt.

Singleleaf Pinyon Pine
Young female cone.

Seeds: Two seeds per scale. Hard shell surrounds “pine nut.”

Habitat: Upper desert flats, bajadas, mountain sides, rocky ridges.

Elevation: 4,000 to 9,000 feet.

Distribution: Southeastern California to southeastern Idaho, extreme western Utah, south to northern Baja California.

Comments: This is the common pinyon pine in Nevada. This species might hybridize with Two-needle Pinyon Pine (Pinus edulis).

Singleleaf Pinyon Pine (Pinus monophylla)

Male cones.

Singleleaf Pinyon Pine (Pinus monophylla)

Ripe seeds in the cone.

Singleleaf Pinyon Pine (Pinus monophylla)

"Pine nuts" in the shell; the seeds of Pinyon Pines.

Singleleaf Pinyon Pine (Pinus monophylla) Singleleaf Pinyon Pine (Pinus monophylla)
Singleleaf Pinyon Pine (Pinus monophylla) Singleleaf Pinyon Pine (Pinus monophylla)
Singleleaf Pinyon Pine (Pinus monophylla) Singleleaf Pinyon Pine (Pinus monophylla)
Singleleaf Pinyon Pine (Pinus monophylla) Singleleaf Pinyon Pine (Pinus monophylla)
Singleleaf Pinyon Pine (Pinus monophylla) Singleleaf Pinyon Pine (Pinus monophylla)
Singleleaf Pinyon Pine (Pinus monophylla)
male (pollen) cones
Singleleaf Pinyon Pine (Pinus monophylla)
male (pollen) cones

 
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Note: All distances, elevations, and other facts are approximate.
© 2014 Jim Boone; Last updated 130122

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