Pinus balfouriana A.murray Bis

Foxtail pine (en), Pin de Balfour au sens large (fr)

Species

Gymnosperms > Pinales > Pinaceae > Pinus

Characteristics

Trees to 22m; trunk to 2.  diam., erect or leaning; crown broadly conic to irregular. Bark gray to salmon or cinnamon, platy or irregularly deep-fissured or with irregular blocky plates. Branches contorted, ascending to descending; twigs red-brown, aging gray to drab yellow-gray, glabrous or puberulent, young branches resembling long bottlebrushes because of persistent leaves. Buds ovoid-acuminate, red-brown, 0.8--1cm, resinous. Leaves 5 per fascicle, upcurved, persisting 10--30 years, 1.5--  ´ 1--1.4mm, mostly connivent, deep blue-to deep yellow-green, abaxial surface without median groove but usually with 2 subepidermal but evident resin bands, adaxial surfaces conspicuously whitened by stomates, margins mostly entire to blunt, apex broadly acute to acuminate; sheath 0.5--1cm, soon forming rosette, shed early. Pollen cones ellipsoid, ca. 6--10mm, red. Seed cones maturing in 2 years, shedding seeds and falling soon thereafter, spreading, symmetric, lance-cylindric with conic base before opening, broadly lance-ovoid or ovoid to cylindric or ovoid-cylindric when open, 6--9(--11)cm, purple, aging red-brown, nearly sessile; apophyses much thickened, rounded, larger toward cone base; umbo central, usually depressed; prickle absent or weak, to 1mm, resin exudates amber. Seeds ellipsoid to narrowly obovoid; body to 10mm, pale brown, mottled with deep red; wing 10--12mm. 2 n =24.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality monoecy
Pollination -
Spread -
Mature width (meter) 4.0 - 8.0
Mature height (meter) -
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light 7-9
Soil humidity -
Soil texture -
Soil acidity 2-6
Soil nutriment -
Hardiness (USDA) 7-8

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings, graftings or seedlings. Seeds needs soaking.
Mode cuttings graftings seedlings
Germination duration (days) 30 - 60
Germination temperacture (C°) 12 - 18
Germination luminosity -
Germination treatment soaking
Minimum temperature (C°) -
Optimum temperature (C°) 23 - 30
Size -
Vigor -
Productivity -

Images

Pinus balfouriana unspecified picture

Distribution

Pinus balfouriana world distribution map, present in United States of America

Conservation status

Pinus balfouriana threat status: Near Threatened

Identifiers

LSID urn:lsid:ipni.org:names:30090943-2
WFO ID wfo-0000482319
COL ID 4J234
BDTFX ID 119753
INPN ID 717403
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Pinus balfouriana Pinus balfouriana subsp. austrina Pinus balfouriana var. austrina