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
Prunus serotina - a native of North America, grows on the edge of forests on sandy soils and poor.
Caesalpinia gilliesii - a species native to temperate and subtropical regions of South America, grown on every continent as an ornamental species in parks and gardens, may naturalize in areas where the climate is favorable.
Deciduu tree, 9-18 m high, crown iregulata, spherical, pyramid. Bark is thin, green, gray thorns present on the trunk and branches. Leaves alternate, palmately-compound, 5-7 folio, folio elliptic, margin evening, nervatiune pinnate, green, autumn remain ever green. Flowers solitary, axillary, hermaphrodite, pentamere, actinomorfe, pink or white.
Bush single, thorny, 2-4 m high. Branches long, arched, with many thorns collected 3; in young yellow, then brown, yellow-gray in old age. Yellow Wood. Leaves simple, outdated, short stalks; oblung language, dark green, glossy on top, the more open on the underside, edge finely toothed, are inserted into the beam to ascela thorns.
Tree, 20-30 m tall stem, 30-100 cm diameter, cintorsionata right, conical crown, becoming round-payment. Bark gray to reddish-brown, deeply breazdata. Curved branches, stalk thin, red-brown, sometimes glauca.
Evergreen tree. Leaves opposite, coriacee, oblong to elliptic-lanceolata, 8-18 x 2-4.5 cm, top acuminata, petiole 2-4 mm long. Male cones are cylindrical, grouped 3-4 at underarms, female cones are solitary, the armpit leaves.