Nevada State Tree – Single-Leaf Pinon & Bristlecone Pine – 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
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.
Conservation; Photos and text by: John Seiler, Edward Jensen,
Alex Niemiera, and John Peterson;Silvics reprinted from Ag
Handbook 654; range map source information