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
Ceratonia siliqua L.
Dioecious tree, 8 meters high. Body iregulat, erect with the latita. Gray-brown bark with longitudinal fissures. Vast and dense crown. The branches are fine young tomentoase become glabrata with timpu. Leaves persistent, alternate, paripenat-compound, with 2.5 pairs of Folio, ovata, coriacee, margin entire, glossy dark green on the upper
Santolina chamaecyparissus - limbricarita
Perennial species, stem 10-60 cm tall, erect or pendence; nefloriferi stalk is green-gray-tomentos; lujerii floriferi are simple, without leaves before blossom. Pectinata-toothed leaves often to penatsectate. Involucre 6-10 mm wide, hemispherical, subtruncat or not, or slightly rounded at the base; bractei lanceolata-ovata, Carina, the interior with round top. Flowers arranged in the capital, bright yellow.
Citrus - citrus
Bark smooth, thin, gray-brown to green. Most species have a single trunk, hardwood. Citrus paradisi (Grapefruit) has a thick trunk 0.5 - a, 75 m in diameter. Stalk young are edges, green. Stalk elderly are circular in section.
Eucalyptus globulus Labill.
Evergreen tree, 25-70 m high x 5 m diameter trunk base. Ritidom rough, exfoliating in gray is the upper of the trunk and branches, in long strips. 12-15 x 12-25 mm buds. Leaves are opposite, in pairs, united among themselves in the green-glauca, 6-15 cm long, adult leaves alternate, 15-35 cm long, lanceolata and arched, the asymmetric top long-acuminata, sturdy stalks.
Thunberg grandiflora Roxb.
Perennials, voluble. Stem thin, green, 2 m height. Leaves opposite, language ovat-lanceolata, acuminata peak, the cordata, margin entire, lobate or iregulat needle, 15 x 10 cm, short stalks, 3.5 ribs. Blue flowers with yellow, white on the outside, 8 x 8 cm, arranged in bouquets with individual pedicel 4-5 cm long, corolla tube 3 cm long
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.