Scientific name - Pinus Coulter D. Don
With pine cone largest in the world, weighing 2-3 kg.
Popular names - Coulter pine, bigcone, pitch pine, pino real.
Distribution and Habitat - originating in California and Mexico, 800-2100 m altitude, grows on rock slopes. Grow spontaneously on Mount Diablo.
Description - monoecious tree, 15-25 m high, trunk 40-120 cm diameter, wide crown, pyramid, iregulata. Bark gray-brown, streaked andanc with solxi long iregulati. Branches ascending, stalk yearly thin, brown-purple, glauca, rugosa, become black after several years. Ovoizi buds, dark red-brown, 1.5-3 cm, resinous, scales with fringed edges, white, top cuspidata. Leaves many in a 3 beam, twisted, gray-green, pale line of stoma,subulat steep peak. Male cones are ovoid-cylindrical, 25 mm, purple-brown, orange-brown in old age. Female cones are matureaza in two years, based on symmetric, ovoid before opening, ovoid-cylindrical when it opened, 20-40 x 15 cm, yellow-brown, resin, peduncle up to 3 cm, apophyses rhombic, strong and harsh , elongated, curved. Green cones weigh 2.5-3.6 kg. Seeds ovoid, 15-22 mm, dark brown, wings up to 2.5 cm. 2n = 24
Growth rate - fast.
Tolerances - drought, fire, minimum temperatures (-5 ˚ C) - (-10 ˚ C) and maximum of 39 ˚ C.
Requirements - pH 5.0-8.0; soil moist, sandy or clay. Annual rainfall 250-450 mm.
Propagation - by seed under cold greenhouse, immediately after maturation. It stratify for 6 weeks to encourage germination. The final place when they transplanteaza to 30-90 cm.
Diseases and pests - Elytroderma deformans, Sirococcus strobilinus.
Natural partners and Garden - Abies concolor, Abies bracts, Aquilegia exim, Arctostaphylos glauca, Calocedrus decurrens, Pinus Attenuat, Jeffrey Pinus, Quercus chrysolepis,anicatalog.com/en/taxon175145/Quercus_durata "target =" _blank "> length Quercus, Rhamnus tomentella.
Properties and Uses - Leaf secretions inhibit the growth of plants in this species. Regenerate quickly after fires.
Combat soil erosion.
Earl B. Alexander, Robert G. Coleman, Todd Keeler Wolf - Serpentine Geoecology of Western North America: Geology, Soils and Vegetation - Oxford University Press, 2006
Forestry Compendium - Pines of Forestry Importance - CABI, 2002
LeRoy Abrams - Illustrated Flora of the Pacific States - Stanford University Press, 1923
Michael G. Barbour, William Dwight Billings - North American Terrestrial Vegetation - Cambridge University Press, 1999
Trees and shrubs
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Liana Wood, single, semi-evergreen, perennial. Strain gray-brown with prominent lenticele. Leaves alternate, palmately-compound, 5 folio ribbed stipelate. Oblonga call to Foliolele ovat-elliptic, the round, ribbed 4.5 to 10 cm long. Raceme axillary blossom, clocks, male flowers are arranged terminal
Drypetes natalensis (Harv.) Hutch
Small tree, 10 m high, branches edges. Leaves alternate, language narrow oblong or elliptic, round base, asymmetrical, margins deeply soirees, shiny dark green on the upper face, and green inside. Stipele linear, 0.1 cm. Flowers in bundles, appear in the armpit leaves and on old wood, male flowers are nested sepa 4.5, 0 petals
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Abies concolor Lindl.
Silver tree - evergreen tree, used for ornamental purposes, because the pyramid shape of the crown, the colorii leaves and frost resistance. The name 'concolor' refers to the fact that leaves have the same color on both sides.
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