Pinus leiophylla |
Pinus clausa |
|
---|---|---|
Chihuahuan pine, ocote Chino, pino Chino, pino prieto |
sand pine, scrub pine, spruce pine |
|
Habit | Trees to 21m; trunk to 0.5m diam., straight and erect to leaning and crooked, much branched; crown mostly rounded or irregular. | |
Bark | gray to gray-brown, furrowed, with narrow, flat, irregular ridges, resin pockets absent, on upper sections of the trunk reddish to red-brown, platy becoming smooth distally. |
|
Branches | spreading to ascending, poorly self-pruning; twigs slender, violet- to red-brown, rarely glaucous, aging gray, smooth. |
|
Buds | cylindric, purple-brown, to 1cm; scale margins white-fringed. |
|
Leaves | 2 per fascicle, spreading-ascending, persisting 2–3 years, (3–)6–9(–10)cm × ca. 1mm, straight, slightly twisted, dark green, all surfaces with fine, inconspicuous stomatal lines, margins finely serrulate, apex short-conic; sheath 0.3–0.5(–0.7)cm, base persistent. |
|
Pollen cones | ellipsoid, ca. 10mm, brownish yellow. |
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Seed(s) | cones maturing in 2 years, shedding seeds soon thereafter or often long-serotinous, long-persistent, solitary or whorled, spreading, symmetric (rarely slightly asymmetric, reflexed), lanceoloid before opening, ovoid to broadly ovoid when open, 3–8cm, red-brown, sessile or on stalks to 1cm, scales with dark red-brown, purple, or purple-gray border distally on adaxial surface; apophyses thickened, shallowly and angulately raised, transversely rhombic, cross-keeled; umbo central, low-pyramidal, tapering to sharp tip or weak, often deciduous prickle. |
|
2n | =24. |
|
Pinus leiophylla |
Pinus clausa |
|
Habitat | Fire successional in sand dunes and white sandhills | |
Elevation | 0–60m (0–200ft) | |
Distribution |
AZ; NM; Mexico
|
AL; FL
|
Discussion | Varieties 2 (1 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Although Pinus clausa is too profusely branched to be important for saw timber, it is managed to produce a high volume of pulpwood in northern peninsular Florida. (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 | ||
Subordinate taxa | ||
Synonyms | P. inops var. clausa, P. clausa var. immuginata | |
Name authority | Schiede & Deppe: in Schlechtendal & Chamisso, Linnaea 6: 354. (1831) | (Chapman ex Engelmann) Sargent: Rep. For. N. America 199. (1884) |
Web links |