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Apache pine, Arizona longleaf pine, pino real

Norway pine, pin rouge, red pine

Habit Trees to 35m; trunk to 0.6m diam., straight; crown irregularly rounded, rather thin. Trees to 37m; trunk to 1.5m diam., straight; crown narrowly rounded.
Bark

dark brown, at maturity deeply furrowed, ridges becoming yellowish, of narrow, elongate, scaly plates.

light red-brown, furrowed and cross-checked into irregularly rectangular, scaly plates.

Branches

straight to ascending;

twigs stout (1–2cm thick), pale gray-brown, aging darker brown, rough.

spreading-ascending;

twigs moderately slender (to 1cm thick), orange- to red-brown, aging darker brown, rough.

Buds

ovoid-conic, to 2cm, resinous;

scale margins pale fringed.

ovoid-acuminate, red-brown, to ca. 2cm, resinous;

scale margins fringed.

Leaves

3(–5) per fascicle, spreading-ascending, often drooping, forming a brush at twig tips, persisting 2 years, (20–)25–45cm × 2mm, dull green, all surfaces with fine stomatal lines, margins coarsely serrulate, apex conic-subulate;

sheath 3–4cm, base persistent.

2 per fascicle, straight or slightly twisted, brittle, breaking cleanly when bent, deep yellow-green, all surfaces with narrow stomatal bands, margins serrulate, apex short-conic, acute;

sheath 1–2.5cm, base persistent.

Pollen cones

cylindric, ca. 25mm, yellow to yellow-brown.

ellipsoid, ca. 15mm, dark purple.

Seed(s)

cones maturing in 2 years and shedding seeds soon thereafter, not persistent, terminal, sometimes curved, often asymmetric, lance-ovoid before opening, ovoid when open, 11–14cm, light dull brown, nearly sessile or short-stalked;

apophyses rhombic, somewhat to quite elongate, strongly raised toward outer cone base, sometimes curved, strongly cross-keeled, narrowed to thick, curved, broadly triangular-based umbo, this often producing outcurved claw.

cones maturing and opening in 2 years, spreading, symmetric, ovoid before opening, broadly ovoid to nearly globose when open, 3.5–6cm, light red-brown, nearly sessile;

apophyses slightly thickened, slightly raised, transversely low-keeled;

umbo central, centrally depressed, unarmed.

2n

=24.

=24.

Pinus engelmannii

Pinus resinosa

Habitat High and dry mountain ranges, valleys, and plateaus Sandy soils, eastern boreal forests
Elevation 1500–2500m (4900–8200ft) 200–800(–1300)m (700–2600(–4300)ft)
Distribution
from FNA
AZ; NM; Mexico
[WildflowerSearch map]
[BONAP county map]
from FNA
CT; IL; MA; ME; MI; MN; NH; NJ; NY; PA; VT; WI; WV; MB; NB; NF; NS; ON; PE; QC
[WildflowerSearch map]
[BONAP county map]
Discussion

In general appearance Pinus engelmannii much resembles P. palustris with its short-persistent, long leaves (but in this species drooping) and in its tendency to form a grass stage. It has a deep taproot as do P. palustris and P. ponderosa.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Pinus resinosa was once the most important timber pine in the Great Lakes region.

Norway pine (Pinus resinosa) is the state tree of Minnesota.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 2. FNA vol. 2.
Parent taxa Pinaceae > Pinus Pinaceae > Pinus
Sibling taxa
P. albicaulis, P. aristata, P. attenuata, P. balfouriana, P. banksiana, P. cembroides, P. clausa, P. contorta, P. coulteri, P. echinata, P. edulis, P. elliottii, P. flexilis, P. glabra, P. jeffreyi, P. lambertiana, P. leiophylla, P. longaeva, P. monophylla, P. monticola, P. muricata, P. palustris, P. ponderosa, P. pungens, P. quadrifolia, P. radiata, P. resinosa, P. rigida, P. sabiniana, P. serotina, P. strobiformis, P. strobus, P. sylvestris, P. taeda, P. torreyana, P. virginiana, P. washoensis
P. albicaulis, P. aristata, P. attenuata, P. balfouriana, P. banksiana, P. cembroides, P. clausa, P. contorta, P. coulteri, P. echinata, P. edulis, P. elliottii, P. engelmannii, P. flexilis, P. glabra, P. jeffreyi, P. lambertiana, P. leiophylla, P. longaeva, P. monophylla, P. monticola, P. muricata, P. palustris, P. ponderosa, P. pungens, P. quadrifolia, P. radiata, P. rigida, P. sabiniana, P. serotina, P. strobiformis, P. strobus, P. sylvestris, P. taeda, P. torreyana, P. virginiana, P. washoensis
Synonyms P. macrophylla, P. apacheca, P. latifolia
Name authority Carrière Aiton: Hort. Kew. 3: 367. (1789)
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