OregonFlora: Pinus rigida vs. Pinus jeffreyi

	Pinus rigida	Pinus jeffreyi
		Jeffrey pine
Habit		Trees to 60 m tall; mature crown conic to rounded.
Buds		ovoid, light brown to reddish brown, not resinous.
Leaves		in clusters of 3; straight, slightly twisted, 12–25 cm × 1.5–2 mm; bluish green to yellow-green; margins finely serrulate; all surfaces with fine stomatal lines; apex acute; sheaths persistent.
Pollen cones		lance-cylindrical, 2–3.5 cm long, yellow to brown.
Seeds		ovoid, 8–12 mm long, brown with black spots; wings twice as long as body.
Trunks		to 2.3 m in diameter; straight; bark yellow-brown to reddish brown, deeply furrowed, forming large irregular scaly plates; branches horizontal to ascending; twigs purplish brown, usually glaucous, roughened by bud scars.
Seed cones		oblong, slightly asymmetric; (12)15–30 cm long, brown to reddish brown; horizontal to pendent; stalks less than 3 cm long, maturing in 2 years, opening at maturity; umbos central, raised; prickles reflexed.
2n		=24.

	Pinus rigida	Pinus jeffreyi
Distribution	[WildflowerSearch map] [BONAP county map]	[WildflowerSearch map] [BONAP county map]
Discussion		Dry forests. 50–2000 m. CR, Sisk. CA, NV; south to Mexico. Native. Morphologically, Pinus jeffreyi is very similar to P. ponderosa, and the two species are known to hybridize. Pinus jeffreyi can be differentiated from P. ponderosa by its cones, which are generally longer than 15 cm and have reflexed prickles. Conversely, P. ponderosa cones are less than 15 cm long and have straight prickles. Some claim that the two species have unique smells. Allegedly, P. jeffreyi trees have a banana, pineapple, or vanilla scent, whereas P. ponderosa trees have a turpentine scent.
Source		Flora of Oregon, volume 1, page 122 Stephen Meyers
Sibling taxa	P. albicaulis, P. attenuata, P. attenuata x Pinus radiata, P. balfouriana, P. contorta, P. flexilis, P. jeffreyi, P. lambertiana, P. monophylla, P. monticola, P. muricata, P. pinaster, P. ponderosa, P. sabiniana, P. sylvestris	P. albicaulis, P. attenuata, P. attenuata x Pinus radiata, P. balfouriana, P. contorta, P. flexilis, P. lambertiana, P. monophylla, P. monticola, P. muricata, P. pinaster, P. ponderosa, P. sabiniana, P. sylvestris
Web links	Local Web sites: Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: CA, OR Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Pinus rigida

Pinus jeffreyi

Jeffrey pine

Habit

Trees to 60 m tall; mature crown conic to rounded.

Buds

ovoid, light brown to reddish brown, not resinous.

Leaves

in clusters of 3; straight, slightly twisted, 12–25 cm × 1.5–2 mm; bluish green to yellow-green;

margins finely serrulate; all surfaces with fine stomatal lines;

apex acute;

sheaths persistent.

Pollen cones

lance-cylindrical, 2–3.5 cm long, yellow to brown.

Seeds

ovoid, 8–12 mm long, brown with black spots;

wings twice as long as body.

Trunks

to 2.3 m in diameter; straight;

bark yellow-brown to reddish brown, deeply furrowed, forming large irregular scaly plates;

branches horizontal to ascending;

twigs purplish brown, usually glaucous, roughened by bud scars.

Seed cones

oblong, slightly asymmetric; (12)15–30 cm long, brown to reddish brown; horizontal to pendent;

stalks less than 3 cm long, maturing in 2 years, opening at maturity;

umbos central, raised;

prickles reflexed.

=24.

Pinus rigida

Pinus jeffreyi

Distribution

[WildflowerSearch map]

[BONAP county map]

[WildflowerSearch map]

[BONAP county map]

Discussion

Dry forests. 50–2000 m. CR, Sisk. CA, NV; south to Mexico. Native.

Morphologically, Pinus jeffreyi is very similar to P. ponderosa, and the two species are known to hybridize. Pinus jeffreyi can be differentiated from P. ponderosa by its cones, which are generally longer than 15 cm and have reflexed prickles. Conversely, P. ponderosa cones are less than 15 cm long and have straight prickles. Some claim that the two species have unique smells. Allegedly, P. jeffreyi trees have a banana, pineapple, or vanilla scent, whereas P. ponderosa trees have a turpentine scent.