Pinus longaeva |
Pinus resinosa |
|
---|---|---|
bristlecone pine, Great Basin bristlecone pine, intermountain bristlecone pine |
Norway pine, pin rouge, red pine |
|
Habit | Trees to 16m; trunk to 2m diam., strongly tapering; crown rounded, flattened (sheared), or irregular. | Trees to 37m; trunk to 1.5m diam., straight; crown narrowly rounded. |
Bark | red-brown, shallowly to deeply fissured with thick, scaly, irregular, blocky ridges. |
light red-brown, furrowed and cross-checked into irregularly rectangular, scaly plates. |
Branches | contorted, pendent; twigs pale red-brown, aging gray to yellow-gray, puberulent, young branches resembling long bottlebrushes because of persistent leaves. |
spreading-ascending; twigs moderately slender (to 1cm thick), orange- to red-brown, aging darker brown, rough. |
Buds | ovoid-acuminate, pale red-brown, ca. 1cm, resinous. |
ovoid-acuminate, red-brown, to ca. 2cm, resinous; scale margins fringed. |
Leaves | mostly 5 per fascicle, upcurved, persisting 10–30 years, 1.5–3.5cm × 0.8–1.2mm, mostly connivent, deep yellow-green, with few resin splotches but often scurfy with pale scales, abaxial surface without median groove but with 2 subepidermal but evident resin bands, adaxial surfaces conspicuously whitened with stomates, margins entire or remotely and finely serrulate distally, apex bluntly acute to short-acuminate; sheath ca. 1cm, soon forming rosette, shed early. |
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 | cylindro-ellipsoid, 7–10mm, purple-red. |
ellipsoid, ca. 15mm, dark purple. |
Seed(s) | cones maturing in 2 years, shedding seeds and falling soon thereafter, spreading, symmetric, lance-cylindric with rounded base before opening, lance-cylindric to narrowly ovoid when open, 6–9.5cm, purple, aging red-brown, nearly sessile; apophyses much thickened, sharply keeled; umbo central, raised on low buttress, truncate to umbilicate, abruptly narrowed to slender but stiff, variable prickle 1–6mm, resin exudate pale. |
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. |
|
Pinus longaeva |
Pinus resinosa |
|
Habitat | Subalpine and alpine | Sandy soils, eastern boreal forests |
Elevation | 1700–3400m (5600–11200ft) | 200–800(–1300)m (700–2600(–4300)ft) |
Distribution |
CA; NV; UT
|
CT; IL; MA; ME; MI; MN; NH; NJ; NY; PA; VT; WI; WV; MB; NB; NF; NS; ON; PE; QC
|
Discussion | Pinus longaeva is considered by dendrochronologists to be the longest-lived tree. One tree was estimated to be 5000 years old. (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 | ||
Synonyms | P. aristata var. longaeva | |
Name authority | D. K. Bailey: Ann. Missouri Bot. Gard. 57: 243. (1970) | Aiton: Hort. Kew. 3: 367. (1789) |
Web links |