Scientific name - Abies concolor Lindl.
Popular names - silver fir, white fir.
Distribution and Habitat - Oregon grows in the north, the mountains of Colorado to rock southern New Mexico and north of Mount San Pedro Martir.
Description - tree to 15-80 m high, trunk 1.5-2 m in diameter, regular crown, pyramid, have horizontal branches that start from ground level. Bark dun open ritidom reddish brown. Lujerii young are gray-green, slightly hairy, buds 0.6 cm, resinous. Acicular leaves 5-7 cm long and 2 mm wide, silvery-blue, on both sides with many stripes of stoma, are arranged on two rows on the stalk, perpendicular to it, your face Lujerului superior. The cones have a length of 7 to 12 cm and a diameter of 3-4cm, are erect, elongated cylindrical male cones are red-purple female cones are green-olive, spring blooming. Rags 2.5 cm wide and 1.5-2 cm long, thin margin, rounded. Seed of 8-12 cm length is cuneiform, shiny, brown-yellow, with large wings (two times higher than seeds).
Tolerances - is performing well against air pollution, with smoke and gas support partial shading in the early stages of growth. In the first years after planting, juveniles are susceptible to frost and drought, is protected to have a sustained growth.
Requirements - prefers light soils, deep return.
Propagation - by spring seeds or by grafting on A. alba. Spring seeding is done outdoors. Sowing is protected by shading and sapling nursery autumn to prick out. Early juveniles are susceptible to dryness and frost, and needs protection.
Cultivars and varieties - A. concolor var. concolor, A. concolor var. lowiana, A. concolor nana, 'Albospica', 'Argenta', 'Blue Cloak', 'Clarence', 'compact', 'tapered', 'spp', 'Glauca', 'Glauca Compacta', 'globosa', ' Larata ',' Little Globe ',' Masonic Broom ',' Mora ',' Pendula ',' Recurva ',' Saint John ',' Scooter ',' variable ',' Wattezii ',' Wintergol ',' Wustemeyer '.
Properties and Uses - ornamental species, very appreciated for the pyramid shape of the crown and the leaf color open, Landscape architecture used as ornamental trees. Are planted singly or in small groups, to highlight the beauty of individual specimens. The wood is pale brown SPRis white, light, soft and yielding.
Adrian Bloom - Gardening with Conifers - Frances Lincoln Publishers, 2001
Genny Smith - Sierra East: Edge of the Great Basin - University of California Press, 2001
Guy Sternberg, James W. Wilson, Jim Wilson - Native Trees for North American Landscapes - Timber Press, 2004
Laurence Hatch - cultivars of Woody Plants - TCR Press, 2007
LeRoy Abrams - Illustrated Flora of the Pacific States, Vol I - Stanford University Press, 1923
Michael Graf - Plants of the Tahoe Basin - University of California Press, 1999
William Cullina-Native Trees, Shrubs, and Vines - Houghton Mifflin, 2002
Trees and shrubs
Shrub 4 m high, dense crown. Bark brown, rough. Leaves persistent, coriacee, simple, language spatulate, entire edge, top round, the obovata, central rib obvious, and glossy dark green upper side, more open bottom, glabra, arranged in vertical false. Blossom umbela
Teline nervosa - endemic of the Canary Islands, rape increases from 650 to 700 m altitude, in association with Aeonium undulatum, Carlina salicifolia, Crambe pritzelii, Hypericum canariensis, Olea europaea subsp. cerasiformis, Sonchus leptocephalus.
Daphne mezereum - spurge Laurel
Daphne mezereum - deciduu shrub, native of Europe and Western Asia, cultivated as an ornamental shrub.
All species of the genus Daphne are toxic. Contact with fruit juice or resin skin irritation.
Prunus laurocerasus L.
Shrub or small tree, 6 m high. Leaves evergreen, alternate, coriacee, lamina lanceolata-obovata, top acute, base cuneata, upper surface glossy green, the bottom is opaque, ribbed clear, ribbed robust short.
Pinus coulteri D. Don
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.
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.