Week 9- Pine ID Flashcards

1
Q

Leaves-
Fascicles of 5
3-5 in

Cones-
Narrow oblong, curved slightly
4-8 in
unarmed terminal umbo

A

Pinaceae
Pinus strobus
eastern white pine

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2
Q

Leaves-
Fascicles of 5
2-4 in
glaucous twig

Cones-
Cylindrical
10-26 in
unarmed terminal umbos

A

Pinaceae
Pinus lambertiana
sugar pine

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3
Q

Leaves-
Fascicles of 5
1.5-3 in

Cones-
3-10 in
unarmed terminal umbos
yellow/orange apophysis

A

Pinaceae
Pinus flexilis
limber pine

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4
Q

Leaves-
fascicles of 2
1-1.5 in
incurved

Cones-
ovoid to globose
open/airy
1-2.5 in
unarmed dorsal umbo
A

Pinaceae
Pinus edulis
pinyon

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5
Q
Leaves-
fascicles of 5
1-1.5 in
white resin flecks
brush like
Cones-
ovoid to oblong
2-3 in 
dorsal umbo armed with long, fragile prickle
scales often quite resinous
A

Pinaceae
Pinus aristata
Rocky Mountain bristlecone pine

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6
Q

Leaves-
fascicles of 2
4-6 in
break cleanly

Cones-
ovoid
1.5-2 in
unarmed dorsal umbos

A

Pinaceae
Pinus resinosa
red pine

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7
Q

Leaves-
fascicles of 2
0.75-1.5 in
divergent/often twisted

Cones-
ovoid
1.5-2 in
often incurved with asymmetrical base
dorsal umbo with minute prickle or unarmed
serotinous
A

Pinaceae
Pinus banksiana
jack pine

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8
Q
Leaves-
fascicles of 2
1.5-3 in
green-blue green 
slightly twisted
Cones-
ovoid
1-2 in
apophysis raised/pyramidal
small scarcely armed dorsal umbo
A

Pinaceae
Pinus sylvestris
Scotch pine

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9
Q

Leaves-
fascicles of 2
4-6 in
do not break cleanly

Cones-
broad ovoid
2-3 in
apophysis light tan/dark brown inner scale
dorsal umbo with minute prickle
base often flattened
A

Pinaceae
Pinus nigra
Austrian pine

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