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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 -
Disease-Resistant Crabapples
Education Center and Info Line practical solutions to everyday questions Toll free Info Line 1-877-398-4769 M-F • 9 AM - 2 PM W • 5 - 7:30 PM Disease-Resistant Crabapples Crabapples are a mainstay of our landscape palette in New England. Their beautiful bloom, small stature, and attractive fruit give them year-round interest…unless they are devastated by disease! Crabapples are susceptible to four major diseases which can cause early defoliation, disfigurement and weakening of trees. Apple scab is the most common and most serious of the diseases. It shows up on leaves as olive green spots with a velvety, grayish surface. In July leaves often turn yellow or orange and drop from the tree. Another serious disease, fire blight, causes the leaves to blacken, shrivel and hang down. Cedar apple rust shows up as conspicuous bright yellow to orange spots on the upper leaf surfaces. And powdery mildew appears in mid-summer as patches of grayish white powder on leaves and fruit. You probably don’t want plants that have to be sprayed in order to be attractive! Many of the older varieties may look great in flower but then succumb to scab or other disease in mid-summer, looking tattered and torn for the remainder of the season. Some cultivars and hybrids that are readily available and have shown good resistance in many trials nationwide are listed below. All have single flowers and small fruit (less than 5/8" diameter). The temperatures at the end of each description are cold hardiness ratings from the Minnesota Landscape Arboretum. -
The Importance of Geographic and Biological Variables in Predicting
Horticulture Publications Horticulture 6-2013 The mpI ortance of Geographic and Biological Variables in Predicting the Naturalization of Non- Native Woody Plants in the Upper Midwest Mark P. Widrlechner Iowa State University, [email protected] Emily J. Kapler Iowa State University, [email protected] Philip M. Dixon Iowa State University, [email protected] Janette R. Thompson Iowa State University, [email protected] Follow this and additional works at: https://lib.dr.iastate.edu/hort_pubs Part of the Ecology and Evolutionary Biology Commons, Forest Management Commons, Horticulture Commons, and the Statistical Models Commons The ompc lete bibliographic information for this item can be found at https://lib.dr.iastate.edu/ hort_pubs/33. For information on how to cite this item, please visit http://lib.dr.iastate.edu/ howtocite.html. This Article is brought to you for free and open access by the Horticulture at Iowa State University Digital Repository. It has been accepted for inclusion in Horticulture Publications by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. The mpI ortance of Geographic and Biological Variables in Predicting the Naturalization of Non-Native Woody Plants in the Upper Midwest Abstract The es lection, introduction, and cultivation of non-native woody plants beyond their native ranges can have great benefits, but also unintended consequences. Among these consequences is the tendency for some species to naturalize and become invasive pests in new environments to which they were introduced. In lieu of lengthy and costly field trials, risk-assessment models can be used to predict the likelihood of naturalization. -
Flora of China 22: 592. 2006. 193. EULALIOPSIS Honda, Bot. Mag
Flora of China 22: 592. 2006. 193. EULALIOPSIS Honda, Bot. Mag. (Tokyo) 38: 56. 1924. 拟金茅属 ni jin mao shu Chen Shouliang (陈守良); Sylvia M. Phillips Pollinidium Stapf ex Haines. Perennial. Leaf blades narrow; ligule a long-ciliate rim. Inflorescences terminal and axillary from upper leaf sheaths, composed of a few subdigitate racemes; racemes conspicuously hairy, fragile, sessile and pedicelled spikelets of a pair similar, both fertile; rachis internodes and pedicels flat, ciliate. Spikelets elliptic-oblong, lightly laterally compressed below middle, flat above; callus densely bearded; glumes villous below middle; lower glume papery, convex, 5–9-veined, veins prominent, apex shortly 2–3-toothed; upper glume 3–9-veined, apex acute or 2-toothed, with or without an awn-point; lower floret male or sterile, lemma and palea well developed, hyaline; upper lemma lanceolate-oblong, hyaline, entire or minutely 2-toothed, awned; awn weakly geniculate; upper pa- lea broadly ovate, glabrous or apex long ciliate. Stamens 3. Two species: Afghanistan and India to China and Philippines; one species in China. 1. Eulaliopsis binata (Retzius) C. E. Hubbard, Hooker’s Icon. with hairs to 2 mm. Racemes 2–4, 2–5 cm, softly golden- Pl. 33: t. 3262, p. 6. 1935. villous; rachis internodes 2–2.5 mm, golden-villous on one or both margins, sometimes thinly. Spikelets 3.8–6 mm, yellow- 拟金茅 ni jin mao ish; callus hairs up to 3/4 spikelet length; lower glume villous Andropogon binatus Retzius, Observ. Bot. 5: 21. 1789; A. along lower margins and in tufts on back; upper glume slightly involutus Steudel; A. -
Management of the Viburnum Leaf Beetle at the Morris Arboretum
University of Pennsylvania ScholarlyCommons Internship Program Reports Education and Visitor Experience 2017 Management of the Viburnum Leaf Beetle at the Morris Arboretum Anna Giesmann University of Pennsylvania Follow this and additional works at: https://repository.upenn.edu/morrisarboretum_internreports Part of the Botany Commons, and the Horticulture Commons Recommended Citation Giesmann, Anna, "Management of the Viburnum Leaf Beetle at the Morris Arboretum" (2017). Internship Program Reports. 10. https://repository.upenn.edu/morrisarboretum_internreports/10 An independent study project report by The John J. Willaman & Martha Haas Valentine Endowed Plant Protection Intern (2016-2017) This paper is posted at ScholarlyCommons. https://repository.upenn.edu/morrisarboretum_internreports/10 For more information, please contact [email protected]. Management of the Viburnum Leaf Beetle at the Morris Arboretum Abstract Pyrrhalta viburni (Coleoptera: Chrysomelidae), or the viburnum leaf beetle (VLB), is an invasive pest on viburnums in North America, where native species of the plant have little natural resistance. Resistance can be conferred by leaf texture, leaf chemistry, or a wound response that crushes VLB eggs. The beetle does not immediately kill host plants, but repeated defoliation is fatal after several years. Because viburnum is a common forest and landscape plant in the eastern United States, VLB is a serious concern. The Morris Arboretum has a large collection of viburnums, including many native and non-native species. While VLB had already been observed in passing, this project included a thorough baseline survey of VLB damage throughout the Arboretum. Data were collected for the number of twigs infested with VLB, the number of cavities on each twig, and whether a wound response had been produced. -
Nannyberry (Viburnum Lentago)
BWSR Featured Plant Name: Nannyberry (Viburnum lentago) Plant Family: Caprifoliaceae Statewide Wetland Indicator Status: Great Plains – FACU Nannyberry is a shrub that is both beautiful and Midwest – FAC versatile. This shade-tolerant, woody plant has flat N. Cent. N. East – FAC topped white flowers, fruit that is used by a wide variety of birds and wildlife, and vibrant fall color. Frequently used as a landscaping plant, it is successful as a tall barrier and wind break. Its ability to function as both a small tree and multi-stemmed shrub and ability to adapt to many environmental conditions makes it well suited to buffer planting and other soil stabilization projects. Flat-topped flower clusters and finely serrated leaves Identification This native shrub can be identified by its pointed buds, unique flowers, and fruit. Growing to around twelve feet tall in open habitats, the species commonly produces suckers and multiple stems. The newest branches are light green in color and glabrous and buds narrow to a point. With age, the branches become grey, scaly and rough. The egg-shaped leaves are simple and opposite with tips abruptly tapering to a sharp point. Leaf surfaces are shiny, dark green and hairless with reddish finely serrated margins. Fall color is a vibrant dark red. Numerous dense, flat-topped flower heads appear and bloom from May to June. Flowers are creamy white and bell to saucer-shaped. The flowers develop into elliptical berry-like drupes that turn a blue-black color from July to August. The Multi-stemmed growth form sweet and edible fruit is used by a variety of wildlife species but has a wet wool odor when decomposing, thus its alternate name – Sheepberry. -
A Guide to Selecting Landscape Plants for Wisconsin
A2865 A guide to selecting landscape plants for Wisconsin E.R. Hasselkus CONTENTS Deciduous trees tall, 2 medium, 4 low, 5 Evergreen trees, 7 Deciduous shrubs tall, 8 medium, 10 low, 11 Evergreen shrubs tall to medium, 13 low, 14 Vines, 14 Groundcovers, 15 Botanical names index, 17 Common names index, 19 A guide to selecting he following is a list of It is important to consider the site landscape plants plants recommended for requirements of each plant that you landscape use in select. Some plants are very exacting for Wisconsin Wisconsin. The list is not as to their preferences and will fail to exhaustive, but includes do well or may die in an unfavorable Tmost of the better ornamental plant location. Many plants are sensitive to species and cultivars (cultivated vari- poorly drained conditions. Use only eties) that are usually available for species tolerant of poor drainage in sale in the state. low, wet spots. Other species need a The plants listed vary widely as to well-drained, yet moist, soil. The “cool their height, growth habit or form, soil” requirement is met by soil that is color, texture, site and soil require- shaded or sloping toward the north. ments, and other characteristics. They Where shade is indicated in the adap- are grouped according to height cate- tation and remarks column, it refers to gories and a brief summary of each tolerance, not a requirement for shade. plant’s characteristics follows its Finally, be sure to choose plants that name. are hardy in your area. Wisconsin is When selecting plants from a list, one divided into six zones (see map) on often tends to consider the flower dis- the basis of minimum winter tempera- play first of all. -
Pages 121-166
Cost Analysis Figure 21. Estimated Unit Costs for Installation and Maintenance Procedures (2004) Costs are based on average conditions calculated from research plot applications. Costs can vary considerably depending on specific site conditions. These examples are intended for comparison purposes and should not be used as bid prices. Note: Estimated costs do not include bark mulch applied as a continuous bed. If that is the desired treatment, an additional mulch materials and application cost would apply. Estimated costs do not include plant or installation warranties. Enhancing Delaware Highways Cost Analysis 122 Figure 21. Estimated Costs for Installation and Maintenance, for comparison (2004) Drilling holes prior to planting quart containers. Note: Estimated costs do not include bark mulch applied as a continuous bed. If that is the desired treatment, an additional mulch materials and application cost would apply. Estimated costs do not include plant or installation warranties. Enhancing Delaware Highways Cost Analysis 124 Appendix A: Checklists–Inventory of Site Conditions 2. Roadway Limitations Checklist Check the roadside zone(s) included in the location to be landscaped: J Back slope or cut slope J Swale or ditch zone 1. Climate and Growth Conditions Checklist J Approach or shoulder zone J Edge or border zone J Front or fill slope Check the appropriate clear zone requirement: Check the appropriate cold hardiness zone: J Standard 30 feet J Other ( feet) J Zone 6 or J Zone 7 Presence of guard rail and/or barrier curb: Guard rail -
Phylogenetic Analyses of Juniperus Species in Turkey and Their Relations with Other Juniperus Based on Cpdna Supervisor: Prof
MOLECULAR PHYLOGENETIC ANALYSES OF JUNIPERUS L. SPECIES IN TURKEY AND THEIR RELATIONS WITH OTHER JUNIPERS BASED ON cpDNA A THESIS SUBMITTED TO THE GRADUATE SCHOOL OF NATURAL AND APPLIED SCIENCES OF MIDDLE EAST TECHNICAL UNIVERSITY BY AYSUN DEMET GÜVENDİREN IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY IN BIOLOGY APRIL 2015 Approval of the thesis MOLECULAR PHYLOGENETIC ANALYSES OF JUNIPERUS L. SPECIES IN TURKEY AND THEIR RELATIONS WITH OTHER JUNIPERS BASED ON cpDNA submitted by AYSUN DEMET GÜVENDİREN in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Department of Biological Sciences, Middle East Technical University by, Prof. Dr. Gülbin Dural Ünver Dean, Graduate School of Natural and Applied Sciences Prof. Dr. Orhan Adalı Head of the Department, Biological Sciences Prof. Dr. Zeki Kaya Supervisor, Dept. of Biological Sciences METU Examining Committee Members Prof. Dr. Musa Doğan Dept. Biological Sciences, METU Prof. Dr. Zeki Kaya Dept. Biological Sciences, METU Prof.Dr. Hayri Duman Biology Dept., Gazi University Prof. Dr. İrfan Kandemir Biology Dept., Ankara University Assoc. Prof. Dr. Sertaç Önde Dept. Biological Sciences, METU Date: iii I hereby declare that all information in this document has been obtained and presented in accordance with academic rules and ethical conduct. I also declare that, as required by these rules and conduct, I have fully cited and referenced all material and results that are not original to this work. Name, Last name : Aysun Demet GÜVENDİREN Signature : iv ABSTRACT MOLECULAR PHYLOGENETIC ANALYSES OF JUNIPERUS L. SPECIES IN TURKEY AND THEIR RELATIONS WITH OTHER JUNIPERS BASED ON cpDNA Güvendiren, Aysun Demet Ph.D., Department of Biological Sciences Supervisor: Prof. -
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). -
Ornamental Grasses for Kentucky Landscapes Lenore J
HO-79 Ornamental Grasses for Kentucky Landscapes Lenore J. Nash, Mary L. Witt, Linda Tapp, and A. J. Powell Jr. any ornamental grasses are available for use in resi- Grasses can be purchased in containers or bare-root Mdential and commercial landscapes and gardens. This (without soil). If you purchase plants from a mail-order publication will help you select grasses that fit different nursery, they will be shipped bare-root. Some plants may landscape needs and grasses that are hardy in Kentucky not bloom until the second season, so buying a larger plant (USDA Zone 6). Grasses are selected for their attractive foli- with an established root system is a good idea if you want age, distinctive form, and/or showy flowers and seedheads. landscape value the first year. If you order from a mail- All but one of the grasses mentioned in this publication are order nursery, plants will be shipped in spring with limited perennial types (see Glossary). shipping in summer and fall. Grasses can be used as ground covers, specimen plants, in or near water, perennial borders, rock gardens, or natu- Planting ralized areas. Annual grasses and many perennial grasses When: The best time to plant grasses is spring, so they have attractive flowers and seedheads and are suitable for will be established by the time hot summer months arrive. fresh and dried arrangements. Container-grown grasses can be planted during the sum- mer as long as adequate moisture is supplied. Cool-season Selecting and Buying grasses can be planted in early fall, but plenty of mulch Select a grass that is right for your climate. -
SHRUBS Almond Russian ‘Regal’ (Prunus Tenella ‘Regal’ ) NRCS Selection
TREE DESCRIPTIONS Big Sioux Nursery, Inc. 16613 Sioux Conifer Road Watertown, SD 57201 1-605-886-6806 1-800-968-6806 E-Mail: [email protected] SHRUBS Almond Russian ‘Regal’ (Prunus tenella ‘Regal’ ) NRCS selection. Introduced from Europe and Asia. Suckers to form small colony. Produces showy pink or white flowers and a hairy inedible fruit. Can tolerate heavy clay and gumbo soils. Doesn’t tolerate waterlogged soil. (Size: 6/32, 12-20”) Aronia 'McKenzie' (Aronia melanocarpa) NRCS Selection. Attractive white flowers, glossy foliage, and black berries. Edible fruit attracts birds. Excellent fall color. (Size 6/32”, 12-20”) Buffaloberry (Shepherdia argentea Native. Suckers to form colony. High pH and drought tolerant. Attractive silver leaves. Red fruit can be used for jelly. Good for wildlife. (Size: 6/32”, 12-20”) Caragana (Caragana arborescens) Introduced from Siberia and Manchuria. Sometimes called pea shrub. Produces yellow flowers in spring. Non-edible seedpods. Fine-leafed. High pH and drought tolerant. Extremely hardy and long lived. (Size: 6/32”, 12-20”) Cherry, Mongolian (Prunus fruticosa) Introduced from Eastern Europe, Asia, Siberia, and Mongolia. Suckers slowly to form a colony. Glossy leaves. Showy white flowers and tart red fruit. Excellent for jelly. (Size: 5/32”, 12-20”) Cherry, Nanking (Prunus tomentosa) Introduced from China and Japan. Showy flowers and sweet red fruit. Good for jelly. Plants may be renewed by cutting to ground. Good for wildlife. (Size: 5/32”, 12-20”) Cherry, Sand (Prunus besseyi) Native. Glossy silver-green leaves. Suckers slightly to produce a low thicket. White flowers in spring and purple fruit in summer.