Pinaceae Pinus monticola western white pine

Sight ID characteristics • Subgenus Strobus • Fascicles of 5 • Seed cones 4-10” long, cone scales thin, somewhat reflexed, tan apophysis with slightly pointed apex. • Seed wings about !” shorter than scales (note wing scars on scales)

85 NOTES AND SKETCHES

86 Pinaceae Pinus strobus eastern white pine

Sight ID characteristics • Eastern North America – deciduous zone • Subgenus Strobus • Fascicles of 5 • Seed cones 3-8” long, cone scales thin, tan apophysis with rounded apex. • Seed wings about "” shorter than scales (note wing scars on scales)

87 NOTES AND SKETCHES

88 Pinaceae Pinus lambertiana sugar pine

Sight ID characteristics • Southern Cascades, Sierra Nevada • Subgenus Strobus • Fascicles of 5, needles spirally twisted • Seed cones 11”-21” long, apophysis thickened, yellowish-brown, diamond shaped • Deep seed wells

89 NOTES AND SKETCHES

90 Pinaceae Pinus flexilis limber pine

Sight ID characteristics • Scattered throughout Rockies, intermountain, eastside Sierras, on dry, rocky soils to timberline • Subgenus Strobus • Fascicles of 5, needles stout – 2”-3.5” long, clumped near tips of branches • Seed cones 3”-6” long, apophysis thickened, gold • Seeds with rudimentary wing or wingless • Deep seed wells with no wing scar

91 NOTES AND SKETCHES

92 Pinaceae Pinus albicaulis whitebark pine

Sight ID characteristics • Northern Rockies, Cascades, northern Sierras, on dry, rocky soils to timberline • Subgenus Strobus • Fascicles of 5, needles stout – 2”-3.5” long, clumped near tips of branches • Seed cones 1.5”-3.5” long, serotinous, scales very thick, terminal umbo armed • Seeds large and wingless

93 NOTES AND SKETCHES

94 Pinaceae Pinus edulis pinyon pine

Sight ID characteristics • Pinyon-juniper zone of 4-corners region • Subgenus Strobus • Fascicles of 2, needles stout, curved, half-circle in cross section • Seed cones 1.5”-2” long, squat, scales thickened • Seeds large and wingless, seed wells deep

95 NOTES AND SKETCHES

96 Pinaceae Pinus monophylla singleleaf pinyon

Sight ID characteristics • Pinyon-juniper zone of intermountain • Subgenus Strobus • Fascicles of 1, needles stout, round in cross section • Seed cones 2”-3” long, squat, scales thickened • Seeds large and wingless, seed wells deep

97 NOTES AND SKETCHES

98 Pinaceae Pinus aristata bristlecone pine

Sight ID characteristics • 2 +/- separate distributions – Colorado, northern Arizona, northern New Mexico (var. aristata; green) and Great Basin and Sierra Nevada (var. longaeva; red) • Subgenus Strobus • Fascicles of 5, needles stout, blunt apex, stomata above, grooved below, conspicuous white resin (var. aristata) • Leaves long persistent – up to 20 years – arranged on stem like hair on foxes tail • Seed cones 2.5”-3.75” long, umbo bristled • Seeds large, winged, seed wells deep

99 NOTES AND SKETCHES

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