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
Tibouchina urvilleana - shrub, to 4 m high. Belong to the genus Tibouchina about 350 species of shrubs and undergrowth of tropical America, most of them being found across the globe species grown as ornamentals.
Alnus incana (L.) Moench - white alder
Mano tree or shrub that can reach 20 m, with stem often crooked, crown with branches thick, upward, lush foliage, lujerii in young gray, pubescent. Bark smooth, shiny, whitish gray, the old copies, to the base with shallow cracks. Wide elliptical leaves up to ovata, by 4.10 cm long, 4-6 cm wide, rounded to the double needle and lobe, pointed, gray green face, white inside gray, furry, ready alternative.
Tree 15-40 m high, trunk 1 m in diameter. Subsesile leaves or stalks, stalks up to 3 cm long, glabru or glabrescent; language to narrow obovata ovata, ovat-lanceolata, 6-15 x 2.5-7 cm, margins evening, the round, top-acute acuminata.
Evergreen shrub. Branches erect. Leaves green, alternate or subverticilate, 6-21 x 2.5 cm, limb oblong, coriaceu, top acuminata, edge entire, nervatiune pinnate. Flowers arranged in terminal panicule, small flowers, hermaphrodite
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.
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.