DOCSLIB.ORG

Rutgers Home Gardeners School: Conifers Plant List

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Rutgers Home Gardeners School: Conifers Plant List Conifers For The Garden By Walter Cullerton 1 Abies alba 'Pyramadalis' (White fir) 2 Abies balsamea 'Hudsonia' (Balsam fir) 3 Abies koreana 'Horstmann Silberlocke' X3 (Korean Fir) 4 Abies koreana 'Green Carpet' (Korean Fir) 5 Abies koreana 'Blauwe Zwo' (Korean Fir) 6 Abies kpreana 'Ice Breaker' (Korean Fir) 7 Abies fraseri 'Stricta' (Fraser Fir) 8 Abies procera 'Silver' (Noble Fir) 9 Abies lasiocarpa 'Compacta' (Subalpine Fir) The Cedars 10 Cedrus deodara Aurea? (Himalayan Cedar) 11 Cedrus libanii cones (Cedar of Lebanon) 12 Cedrus atlantica 'Glauca' (Atlantic Cedar or Blue Atlas) 13 Cedrus atlantica 'Fastigiata 14 Cedrus atlantica 'Glauca Pendula' The Plum Yew 15 Cephalotaxus harringtonia 'Prostrata' (Plum Yew) 16 Cephalotaxus harringtonia 'Kelly's Gold' The False Cedars 17 Chamaecyparis nookatensis 'Green Arrow' X2 (Alaskan Cedar) 18 Chamaecyparis nookatensis 'Van Den Aker' 19 Chamaecyparis obtusa 'Lynn's Golden' (Hinoki Cypress) 20 Chamaecyparis obtusa Fernspray Gold' 21 Chamaecyparis obtusa 'Crippsii' 22 Chamaecyparis pisifera 'Snow' (Sawara Cypress) 23 Chamaecyparis pisifera 'Variegata' The Japanese Cedar 24 Cryptomeria japonica 'Gyokurya' (Japanese Cedar) Cryptomeria japonica 'Spiralis' (Japanese Cedar) The China Fir 25 Cunninghamia lanceolata 'Glauca' 26 Cunninghamia lanceolata needles Arizona Cypress 27 Cupressus arizonica var glabra 'Blue Ice' (Arizona Cypress) The Junipers 28 Juniperus communis 'Gold Cone' (Common Juniper) 29 Jumiperus rigida 'Pendula' (Temple Juniper) 30 Juniperus viginiana 'Gray Owl' a scene (Eastern Red Cedar) 31 Juniper scene with Juniperus communis 'Compressa' Page 1 of 5 Conifers For The Garden By Walter Cullerton The Larches- non evergreen 32 Larix decidua 'Varied Directions' X2 (European Larch) 33 Larix kaempferi 'Pendula' (Japanese Larch) The Spruces 34 Sculpted Norway ? (Norway Spruce) 35 Picea abies 'Acrocona' or 'Pusch' ? 36 Picea abies 'Pendula' X2 37 Picea glauca 'Pendula' (White Spruce) 38 Picea glauca 'Albertiana Conica' 39 Picea omorika 'Pendula Bruns' (Serbian Spruce) 40 Picea omorika 'Nana' 41 Picea omorika 'Pimoko' 42 Picea orientalis 'Barnes' (Oriental Spruce) 43 Picea orientalis 'Nigra Compacta' X 2 44 Picea orientalis 'Skylands' 45 Picea pungens 'St Mary's Broom' (Blue/Colorado Spruce) 46 Picea pungens 'The Blues' 47 Picea pungens 'Walnut Glen' 48 Picea pungens 'Globosa' trimmed for shape 49 Picea pungens 'Globosa' with natural shape 50 Picea rubrens 'Pocono' (Red Spruce) 51 Picea sitchensis 'Papoose' (Sitka Spruce) The Pines 52 Pinus Cellularis (Telephone Pine) 53 Pinus densiflora 'Low Glow' (Japanese Red Pine) 54 Pinus flexilis (Limber Pine) 55 Pinus leucodermis 'Irish Bell' (Bosnian Pine) 56 Pinus nigra 'Obelisk' (Austrian Pine) 57 Pinus nigra…….silver plated bark 58 Pinus parviflora 'Watnong' (Japanese White Pine) 59 Pinus parviflora 'Tamina no Yuki' X 2 60 Pinus parviflora …….close up 61 Pinus parviflora….compact selection; popsicle style 62 Pinus resinosa 'Don Smith' (Red Pine) 63 Pinus strobus 'Pendula' (Eastern White Pine) 64 Pinus strobus 'Stowe's Pillar' 65 Pinus sylvestris 'Hillside Creeper' (Scotch Pine) 66 Pinus sylvestris 'Repens' 67 Pinus sylvestris…..Bonsai………yours for $2,300 68 Pinus densi-thunbergi 'Beni Kujaku' 69 Pinus wallichiana 'Zebrina' (Himalayan Pine) 70 Pinus wallichiana 'Zebrina' foliage Page 2 of 5 Conifers For The Garden By Walter Cullerton The Douglas Fir 72 Sciadopitys verticillata (Umbrella pine) Sciadopitys verticillata 'Ossorios Gold' Taxodiums-non evergreen 73 Taxodium ascendens 'Nutans' (Pond Cypress) 74 Taxodium ascendens 'Nutans' ………in fall dress 75 Taxodium distichum …….trunk & knees (Swamp/Bald Cypress) 76 Taxodium distichum 'Cascade Falls' X2 The Arborvitaes 77 Thuja occidentalis 'Watnong Gold' (Eastern Arborvitae) 78 Thuja occidentalis 'Wansdyke Silver' 79 Thuja plicata 'Rogersii' (Western Red Cedar) The Hemlocks 80 Tsuga canadensis 'Hussi' (Canadian Hemlock) 81 Tsuga canadensis 'Cole's Prostrate' 82 Tsuga canadensis 'Pendula' …'Sargents Weeping' 83 Tsuga canadensis 'Everitt's Golden' Planting Styles 84 Trough rectangular 85 Trough square 86 Trough round 87 A railroad at Marion Martin' nursery X 3 88 Railroad & dwarf conifers at Morris Arboretum 89 An eclectic style integrating dwarf conifers 90 Another eclectic with dwarf conifers 91 Cockeyed conifers, a true conifer garden 92 Rocks, boulders and conifers 93 Acer palmatum 'Shaina' the japanese maple connection 94 Looking out………………. American Conifer Society (www.conifersociety.org) Founded in 1983 to facilitate the preservation and propagation of dwarf and unusual conifers, to encourage the use of conifers in public and private collections through education, and to register new American cultivars and set a standard for the correct use of conifer names. Page 3 of 5 Conifers For The Garden By Walter Cullerton Recommended Readings Gardening With Conifers Adrian Bloom 2002 Conifers van Gelderen & .van Hoey Smith 2nd Ed. Conifers For Gardens Richard Bitner 2007 Growing Conifers Brooklyn Botanic Garden 1997 Page 4 of 5 Conifers For The Garden By Walter Cullerton Page 5 of 5.
Load more

Recommended publications
  • Department of Planning and Zoning
    Department of Planning and Zoning Subject: Howard County Landscape Manual Updates: Recommended Street Tree List (Appendix B) and Recommended Plant List (Appendix C) - Effective July 1, 2010 To: DLD Review Staff Homebuilders Committee From: Kent Sheubrooks, Acting Chief Division of Land Development Date: July 1, 2010 Purpose: The purpose of this policy memorandum is to update the Recommended Plant Lists presently contained in the Landscape Manual. The plant lists were created for the first edition of the Manual in 1993 before information was available about invasive qualities of certain recommended plants contained in those lists (Norway Maple, Bradford Pear, etc.). Additionally, diseases and pests have made some other plants undesirable (Ash, Austrian Pine, etc.). The Howard County General Plan 2000 and subsequent environmental and community planning publications such as the Route 1 and Route 40 Manuals and the Green Neighborhood Design Guidelines have promoted the desirability of using native plants in landscape plantings. Therefore, this policy seeks to update the Recommended Plant Lists by identifying invasive plant species and disease or pest ridden plants for their removal and prohibition from further planting in Howard County and to add other available native plants which have desirable characteristics for street tree or general landscape use for inclusion on the Recommended Plant Lists. Please note that a comprehensive review of the street tree and landscape tree lists were conducted for the purpose of this update, however, only
    [Show full text]
  • Cytospora Canker
    report on RPD No. 604 PLANT April 1996 DEPARTMENT OF CROP SCIENCES DISEASE UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN CYTOSPORA OR LEUCOSTOMA CANKER OF SPRUCE Cytospora or Leucostoma canker, the most common and damaging disease of spruce, is caused by the fungus Leucocytospora kunzei, synonym Cytospora kunzei (teleomorph or sexual state Leucostoma kunzei, synonym Valsa kunzei). This canker occurs on several conifers from New England to the western United States. Colo- rado or Colorado blue (Picea pungens) and Norway spruce (Picea abies), used for ornament and in wind- breaks, are the species most commonly affected in Illinois. The disease has reached epidemic proportions on Engelmann spruce (Picea engelmannii) and Douglas- fir (Pseudotsuga menziesii) in the eastern Rocky Mountains due to a succession of dry years in the area. Other trees reported as susceptible to the disease are given in Table 1. Spruce trees less than 10 to 15 years old usually do not have Cytospora canker. In landscape nurseries, how- ever, small branches of young Colorado blue and oc- casionally white spruces may be killed. Three varieties of Leucostoma kunzei are recognized by some spec- ialists: var. piceae on spruces, var. superficialis on pines, and var. kunzei on other conifers. Figure 1. Colorado spruce affected by Cytospora Dead and dying branches call attention to Cytospora or canker. Leucostoma canker with older branches more suscep- tible than young ones. The fungus kills areas of bark, usually at the bases of small twigs and branches, creating elliptical to diamond-shaped lesions. If the lesions enlarge faster than the stem and girdle it, the portion beyond the canker also dies.
    [Show full text]
  • Qrno. 1 2 3 4 5 6 7 1 CP 2903 77 100 0 Cfcl3
    QRNo. General description of Type of Tariff line code(s) affected, based on Detailed Product Description WTO Justification (e.g. National legal basis and entry into Administration, modification of previously the restriction restriction HS(2012) Article XX(g) of the GATT, etc.) force (i.e. Law, regulation or notified measures, and other comments (Symbol in and Grounds for Restriction, administrative decision) Annex 2 of e.g., Other International the Decision) Commitments (e.g. Montreal Protocol, CITES, etc) 12 3 4 5 6 7 1 Prohibition to CP 2903 77 100 0 CFCl3 (CFC-11) Trichlorofluoromethane Article XX(h) GATT Board of Eurasian Economic Import/export of these ozone destroying import/export ozone CP-X Commission substances from/to the customs territory of the destroying substances 2903 77 200 0 CF2Cl2 (CFC-12) Dichlorodifluoromethane Article 46 of the EAEU Treaty DECISION on August 16, 2012 N Eurasian Economic Union is permitted only in (excluding goods in dated 29 may 2014 and paragraphs 134 the following cases: transit) (all EAEU 2903 77 300 0 C2F3Cl3 (CFC-113) 1,1,2- 4 and 37 of the Protocol on non- On legal acts in the field of non- _to be used solely as a raw material for the countries) Trichlorotrifluoroethane tariff regulation measures against tariff regulation (as last amended at 2 production of other chemicals; third countries Annex No. 7 to the June 2016) EAEU of 29 May 2014 Annex 1 to the Decision N 134 dated 16 August 2012 Unit list of goods subject to prohibitions or restrictions on import or export by countries- members of the
    [Show full text]
  • EVERGREEN TREES for NEBRASKA Justin Evertson & Bob Henrickson
    THE NEBRASKA STATEWIDE ARBORETUM PRESENTS EVERGREEN TREES FOR NEBRASKA Justin Evertson & Bob Henrickson. For more plant information, visit plantnebraska.org or retreenbraska.unl.edu Throughout much of the Great Plains, just a handful of species make up the majority of evergreens being planted. This makes them extremely vulnerable to challenges brought on by insects, extremes of weather, and diseases. Utilizing a variety of evergreen species results in a more diverse and resilient landscape that is more likely to survive whatever challenges come along. Geographic Adaptability: An E indicates plants suitable primarily to the Eastern half of the state while a W indicates plants that prefer the more arid environment of western Nebraska. All others are considered to be adaptable to most of Nebraska. Size Range: Expected average mature height x spread for Nebraska. Common & Proven Evergreen Trees 1. Arborvitae, Eastern ‐ Thuja occidentalis (E; narrow habit; vertically layered foliage; can be prone to ice storm damage; 20‐25’x 5‐15’; cultivars include ‘Techny’ and ‘Hetz Wintergreen’) 2. Arborvitae, Western ‐ Thuja plicata (E; similar to eastern Arborvitae but not as hardy; 25‐40’x 10‐20; ‘Green Giant’ is a common, fast growing hybrid growing to 60’ tall) 3. Douglasfir (Rocky Mountain) ‐ Pseudotsuga menziesii var. glauca (soft blue‐green needles; cones have distinctive turkey‐foot bract; graceful habit; avoid open sites; 50’x 30’) 4. Fir, Balsam ‐ Abies balsamea (E; narrow habit; balsam fragrance; avoid open, windswept sites; 45’x 20’) 5. Fir, Canaan ‐ Abies balsamea var. phanerolepis (E; similar to balsam fir; common Christmas tree; becoming popular as a landscape tree; very graceful; 45’x 20’) 6.
    [Show full text]
  • Pines in the Arboretum
    UNIVERSITY OF MINNESOTA MtJ ARBORETUM REVIEW No. 32-198 PETER C. MOE Pines in the Arboretum Pines are probably the best known of the conifers native to The genus Pinus is divided into hard and soft pines based on the northern hemisphere. They occur naturally from the up­ the hardness of wood, fundamental leaf anatomy, and other lands in the tropics to the limits of tree growth near the Arctic characteristics. The soft or white pines usually have needles in Circle and are widely grown throughout the world for timber clusters of five with one vascular bundle visible in cross sec­ and as ornamentals. In Minnesota we are limited by our cli­ tions. Most hard pines have needles in clusters of two or three mate to the more cold hardy species. This review will be with two vascular bundles visible in cross sections. For the limited to these hardy species, their cultivars, and a few hy­ discussion here, however, this natural division will be ignored brids that are being evaluated at the Arboretum. and an alphabetical listing of species will be used. Where neces­ Pines are readily distinguished from other common conifers sary for clarity, reference will be made to the proper groups by their needle-like leaves borne in clusters of two to five, of particular species. spirally arranged on the stem. Spruce (Picea) and fir (Abies), Of the more than 90 species of pine, the following 31 are or for example, bear single leaves spirally arranged. Larch (Larix) have been grown at the Arboretum. It should be noted that and true cedar (Cedrus) bear their leaves in a dense cluster of many of the following comments and recommendations are indefinite number, whereas juniper (Juniperus) and arborvitae based primarily on observations made at the University of (Thuja) and their related genera usually bear scalelikie or nee­ Minnesota Landscape Arboretum, and plant performance dlelike leaves that are opposite or borne in groups of three.
    [Show full text]
  • Western Larch, Which Is the Largest of the American Larches, Occurs Throughout the Forests of West- Ern Montana, Northern Idaho, and East- Ern Washington and Oregon
    Forest An American Wood Service Western United States Department of Agriculture Larch FS-243 The spectacular western larch, which is the largest of the American larches, occurs throughout the forests of west- ern Montana, northern Idaho, and east- ern Washington and Oregon. Western larch wood ranks among the strongest of the softwoods. It is especially suited for construction purposes and is exten- sively used in the manufacture of lumber and plywood. The species has also been used for poles. Water-soluble gums, readily extracted from the wood chips, are used in the printing and pharmaceutical industries. F–522053 An American Wood Western Larch (Lark occidentalis Nutt.) David P. Lowery1 Distribution Western larch grows in the upper Co- lumbia River Basin of southeastern British Columbia, northeastern Wash- ington, northwest Montana, and north- ern and west-central Idaho. It also grows on the east slopes of the Cascade Mountains in Washington and north- central Oregon and in the Blue and Wallowa Mountains of southeast Wash- ington and northeast Oregon (fig. 1). Western larch grows best in the cool climates of mountain slopes and valleys on deep porous soils that may be grav- elly, sandy, or loamy in texture. The largest trees grow in western Montana and northern Idaho. Western larch characteristically occu- pies northerly exposures, valley bot- toms, benches, and rolling topography. It occurs at elevations of from 2,000 to 5,500 feet in the northern part of its range and up to 7,000 feet in the south- ern part of its range. The species some- times grows in nearly pure stands, but is most often found in association with other northern Rocky Mountain con- ifers.
    [Show full text]
  • Identification of Conifer Trees in Iowa This Publication Is Designed to Help Identify the Most Common Trees Found in Iowa
    Identification of Conifer Trees in Iowa This publication is designed to help identify the most common trees found in Iowa. It is based on vegetative characteristics including leaves, fruit, and bark. It is neither complete nor without possible oversights. Separate species are grouped by similar characteristics, mainly based on type and arrangement of leaves. These groups are; awl- or scale- like needles; single needles, flattened with rounded tips; single needles, square in cross section, with pointed tips; and needles in bundles or fasticles of two or more. Remember, vegetative character- istics are quite variable; use more than one specimen for comparison. Awl- or scale-like needles Juniperus Virginiana Eastern Red Cedar Leaves are dark green; leaves are both awl- and scale-like; cone is dark blue and berry-like. Thuja occidentalis Northern White Cedar Leaves are flattened and only of the scale type; cones have 4-6 scales; foliage is light green. Juniperus communis Common Juniper Leaves are awl shaped; cone is dark blue and berry-like. Pm-1383 | May 1996 Single needles, flattened with rounded tips Pseudotsuga menziesii Douglas Fir Needles occur on raised pegs; 3/4-11/4 inches in length; cones have 3-pointed bracts between the cone scales. Abies balsamea Abies concolor Balsam Fir White (Concolor) Fir Needles are blunt and notched at Needles are somewhat pointed, the tip; 3/4-11/2 inches in length. curved towards the branch top and 11/2-3 inches in length; silver green in color. Single needles, Picea abies Norway Spruce square in cross Needles are 1/2-1 inch long; section, with needles are dark green; foliage appears to droop or weep; cone pointed tips is 4-7 inches long.
    [Show full text]
  • Common Conifers in New Mexico Landscapes
    Ornamental Horticulture Common Conifers in New Mexico Landscapes Bob Cain, Extension Forest Entomologist One-Seed Juniper (Juniperus monosperma) Description: One-seed juniper grows 20-30 feet high and is multistemmed. Its leaves are scalelike with finely toothed margins. One-seed cones are 1/4-1/2 inch long berrylike structures with a reddish brown to bluish hue. The cones or “berries” mature in one year and occur only on female trees. Male trees produce Alligator Juniper (Juniperus deppeana) pollen and appear brown in the late winter and spring compared to female trees. Description: The alligator juniper can grow up to 65 feet tall, and may grow to 5 feet in diameter. It resembles the one-seed juniper with its 1/4-1/2 inch long, berrylike structures and typical juniper foliage. Its most distinguishing feature is its bark, which is divided into squares that resemble alligator skin. Other Characteristics: • Ranges throughout the semiarid regions of the southern two-thirds of New Mexico, southeastern and central Arizona, and south into Mexico. Other Characteristics: • An American Forestry Association Champion • Scattered distribution through the southern recently burned in Tonto National Forest, Arizona. Rockies (mostly Arizona and New Mexico) It was 29 feet 7 inches in circumference, 57 feet • Usually a bushy appearance tall, and had a 57-foot crown. • Likes semiarid, rocky slopes • If cut down, this juniper can sprout from the stump. Uses: Uses: • Birds use the berries of the one-seed juniper as a • Alligator juniper is valuable to wildlife, but has source of winter food, while wildlife browse its only localized commercial value.
    [Show full text]
  • Cupressaceae Calocedrus Decurrens Incense Cedar
    Cupressaceae Calocedrus decurrens incense cedar Sight ID characteristics • scale leaves lustrous, decurrent, much longer than wide • laterals nearly enclosing facials • seed cone with 3 pairs of scale/bract and one central 11 NOTES AND SKETCHES 12 Cupressaceae Chamaecyparis lawsoniana Port Orford cedar Sight ID characteristics • scale leaves with glaucous bloom • tips of laterals on older stems diverging from branch (not always too obvious) • prominent white “x” pattern on underside of branchlets • globose seed cones with 6-8 peltate cone scales – no boss on apophysis 13 NOTES AND SKETCHES 14 Cupressaceae Chamaecyparis thyoides Atlantic white cedar Sight ID characteristics • branchlets slender, irregularly arranged (not in flattened sprays). • scale leaves blue-green with white margins, glandular on back • laterals with pointed, spreading tips, facials closely appressed • bark fibrous, ash-gray • globose seed cones 1/4, 4-5 scales, apophysis armed with central boss, blue/purple and glaucous when young, maturing in fall to red-brown 15 NOTES AND SKETCHES 16 Cupressaceae Callitropsis nootkatensis Alaska yellow cedar Sight ID characteristics • branchlets very droopy • scale leaves more or less glabrous – little glaucescence • globose seed cones with 6-8 peltate cone scales – prominent boss on apophysis • tips of laterals tightly appressed to stem (mostly) – even on older foliage (not always the best character!) 15 NOTES AND SKETCHES 16 Cupressaceae Taxodium distichum bald cypress Sight ID characteristics • buttressed trunks and knees • leaves
    [Show full text]
  • Non-Expressway Master Plant List
    MASTER PLANT LIST GENERAL INTRODUCTION TO PLANT LISTS Plants are living organisms. They possess variety in form, foliage and flower color, visual texture and ultimate size. There is variation in plants of the same species. Plants change: with seasons, with time and with the environment. Yet here is an attempt to categorize and catalogue a group of plants well suited for highway and expressway planting in Santa Clara County. This is possible because in all the existing variety of plants, there still remains a visual, morphological and taxonomical distinction among them. The following lists and identification cards emphasize these distinctions. 1 of 6 MASTER PLANT LIST TREES Acacia decurrens: Green wattle Acacia longifolia: Sydney golden wattle Acacia melanoxylon: Blackwood acacia Acer macrophyllum: Bigleaf maple Aesculus californica: California buckeye Aesculus carnea: Red horsechestnut Ailanthus altissima: Tree-of-heaven Albizia julibrissin: Silk tree Alnus cordata: Italian alder Alnus rhombifolia: White alder Arbutus menziesii: Madrone Calocedrus decurrens: Incense cedar Casuarina equisetifolia: Horsetail tree Casuarina stricta: Coast beefwood Catalpa speciosa: Western catalpa Cedrus deodara: Deodar cedar Ceratonia siliqua: Carob Cinnamomum camphora: Camphor Cordyline australis: Australian dracena Crataegus phaenopyrum: Washington thorn Cryptomeria japonica: Japanese redwood Cupressus glabra: Arizona cypress Cupressus macrocarpa: Monterey cypress Eriobotrya japonica: Loquat Eucalyptus camaldulensis: Red gum Eucalyptus citriodora: Lemon-scented
    [Show full text]
  • Morphology and Morphogenesis of the Seed Cones of the Cupressaceae - Part II Cupressoideae
    1 2 Bull. CCP 4 (2): 51-78. (10.2015) A. Jagel & V.M. Dörken Morphology and morphogenesis of the seed cones of the Cupressaceae - part II Cupressoideae Summary The cone morphology of the Cupressoideae genera Calocedrus, Thuja, Thujopsis, Chamaecyparis, Fokienia, Platycladus, Microbiota, Tetraclinis, Cupressus and Juniperus are presented in young stages, at pollination time as well as at maturity. Typical cone diagrams were drawn for each genus. In contrast to the taxodiaceous Cupressaceae, in Cupressoideae outgrowths of the seed-scale do not exist; the seed scale is completely reduced to the ovules, inserted in the axil of the cone scale. The cone scale represents the bract scale and is not a bract- /seed scale complex as is often postulated. Especially within the strongly derived groups of the Cupressoideae an increased number of ovules and the appearance of more than one row of ovules occurs. The ovules in a row develop centripetally. Each row represents one of ascending accessory shoots. Within a cone the ovules develop from proximal to distal. Within the Cupressoideae a distinct tendency can be observed shifting the fertile zone in distal parts of the cone by reducing sterile elements. In some of the most derived taxa the ovules are no longer (only) inserted axillary, but (additionally) terminal at the end of the cone axis or they alternate to the terminal cone scales (Microbiota, Tetraclinis, Juniperus). Such non-axillary ovules could be regarded as derived from axillary ones (Microbiota) or they develop directly from the apical meristem and represent elements of a terminal short-shoot (Tetraclinis, Juniperus).
    [Show full text]
  • Weathering Behaviour of Cunninghamia Lanceolata (Lamb.) Hook
    Article Weathering Behaviour of Cunninghamia lanceolata (Lamb.) Hook. under Natural Conditions Xinjie Cui 1 and Junji Matsumura 2,* 1 Graduate School of Bioresource and Bioenvironmental Sciences, Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; [email protected] 2 Laboratory of Wood Science, Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan * Correspondence: [email protected]; Tel.: +81-092-802-4656 Received: 18 July 2020; Accepted: 10 December 2020; Published: 14 December 2020 Abstract: Information on the weathering behaviour of Cunninghamia lanceolata (Lamb.) Hook. is needed to provide references for wood weatherproof pre-treatment and to improve wood utilization. Therefore, this study was conducted to understand the variation in the intrinsic weathering behaviour of Cunninghamia lanceolata (Chinese fir) under natural conditions. Wood samples from 15 Cunninghamia lanceolata trees aged 26–30 years old were used. The structural degradation and discoloration of wood surfaces before and after exposure were compared. The results show that the weathering behaviour of wood was weakened from heartwood to sapwood and enhanced from the bottom to the top. This study provided information for weatherability research and improved wood utilization of Cunninghamia lanceolata. Keywords: Cunninghamia lanceolata; weathering; density; colour change; wood structure 1. Introduction Cunninghamia lanceolata (Lamb.) Hook. is a member of the family Cupressaceae. It is an evergreen tree that can grow up to 50 m in height and over 3 m in diameter. It forms mixed broad-leaved forests or small, pure stands, rocky hillsides, roadsides, with altitudes ranging from 200 to 2800 m [1].
    [Show full text]