Nevada State Tree - Single-Leaf Pinon & Bristlecone Pine - Pinus monophylla & Pinus longaeva

Single-Leaf Pinyon & Bristlecone Pine Pinaceae Pinus monophylla & Pinus longaeva

Leaf: Acicular, short (1 to 1 1/2 inches long), curved, fascicles of 5, dark green but usually covered with white dots of dried resin. Remain on tree for 10-17 years, giving a bushy appearance that resembles a fox's tail.

Flower: Monoecious; male cones small, dark orange and often clustered near the ends of branches; female cones occur singly or in pairs near the ends of branches.

Fruit: Moderate sized woody cone (about 3 inches long) with a short stalk; imbricate scales are thickened and tipped with a long bristle, giving rise to its common name. Seeds are winged.

Twig: Orange-brown when young but darkening with age.

Bark: Young bark is thin, smooth, and gray-white later becoming furrowed and reddish-brown. Old trees on harsh, windy sites may have only a few strands of bark remaining in crevices where it is protected from sandblasting winds.

Form: Typically small and contorted by the wind and harsh growing conditions, grows very slowly.

Copyright 2019 Virginia Tech Dept. of Forest Resources and Environmental
Conservation; Photos and text by: John Seiler, Edward Jensen,
Alex Niemiera, and John Peterson;Silvics reprinted from Ag
Handbook 654; range map source information
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