Woody Plants Group 2

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  • Woody Plants Group 2

    1. 1. Woodies I Group 2
    2. 2. <ul><li>Rhus glabra </li></ul><ul><li>Rhus typhina </li></ul><ul><li>Eleagnus angustifolia </li></ul><ul><li>Cercis canadensis </li></ul><ul><li>Gleditsia triancanthos var. inermis </li></ul><ul><li>Gymnocladus dioca </li></ul><ul><li>Robinia pseudoacacia </li></ul><ul><li>Sophora japonica </li></ul><ul><li>Koelreuteria paniculata </li></ul><ul><li>Aesculus glabra </li></ul><ul><li>Aesculus hippocastanum </li></ul><ul><li>Ailanthus altissima </li></ul>
    3. 3. Rhus glabra Smooth Sumac <ul><li>.A shrub or small tree with a short or multi-stemmed trunk and spreading branches </li></ul><ul><li>10 to 15' high with a comparable spread. It usually grows in colonies, as it suckers and develops in all directions from the mother plant, and prefers full sun but will tolerate partial shade. Smooth sumac tolerates drought and its low water needs make it a good xeriscape plant </li></ul>
    4. 4. Rhus glabra Grown as a tree in Illinois
    5. 5. <ul><li>Leaf: Alternate, pinnately compound, 11 to 31 leaflets per leaf, leaves are 12 to 18 inches long. Leaflets are lanceolate, serrate and are 2 to 4 inches long. Leaflets are finely hairy below. </li></ul>
    6. 6. Flower <ul><li>Flower: </li></ul><ul><li>Dioecious; </li></ul><ul><li>with white petals, borne on upright panicles up to 8 inches long. Flowering June to August. </li></ul>
    7. 7. Fruit <ul><li>A drupe borne in panicles. Fruits are dark red, round and hairy, 1/8 inch long. The panicles droop when mature. Maturing September to October but persisting through winter. </li></ul>
    8. 8. Twig <ul><li>Stout, lacking hairs and often with a glaucous bloom. Buds are small, rounded and covered with light brown hairs, nearly encircled by leafscar. </li></ul>
    9. 9. Bark <ul><li>Bark: Brown-gray and smooth, developing scaly ridges with age </li></ul>
    10. 10. Fall Color
    11. 11. Rhus glabra ID <ul><li>no pubescence on stems </li></ul><ul><li>leaf scar encircles buds </li></ul><ul><li>greenish yellow flowers </li></ul><ul><li>red fruit spikes </li></ul><ul><li>alternate pinnately compound leaves </li></ul><ul><li>stout stems </li></ul>
    12. 12. Rhus glabra liabilities <ul><li>Verticillium Wilt </li></ul><ul><li>aphids, scales, rusts and mites </li></ul>
    13. 13. Rhus glabra <ul><li>var. cismontana - Listed as a western variety of the species, this variant is supposedly more drought tolerant than the species. It is also smaller in all its features, reaching only 6' tall with smaller fruit and flower clusters. </li></ul>
    14. 14. Rhus typhina Staghorn Sumac <ul><li>large open shrub or weedy tree </li></ul><ul><li>flat-topped crown </li></ul><ul><li>colonizes and suckers </li></ul><ul><li>15' to 25' tall </li></ul><ul><li>Spreads by suckers </li></ul><ul><li>coarse texture </li></ul><ul><li>fast growth rate </li></ul>
    15. 21. ID Rhus typhina <ul><li>greenish yellow flowers </li></ul><ul><li>red fruit spikes </li></ul><ul><li>alternate pinnately compound leaves </li></ul><ul><li>c-shaped leaf scars </li></ul><ul><li>extreme pubescence on leaves and branches </li></ul><ul><li>stout stems </li></ul><ul><li>concealed lenticels </li></ul>
    16. 22. Rhus typhina liabilities <ul><li>Verticillium Wilt </li></ul><ul><li>aphids, scales, rusts and mites </li></ul>
    17. 23. Comparison of Rhus
    18. 25. Eleagnus angustifolia Russian Olive <ul><li>Height 20’ Width 20’ </li></ul><ul><li>Low water needs </li></ul><ul><li>Rounded, irregular outline </li></ul><ul><li>Silver green to gray green foliage </li></ul><ul><li>Yellow fall color </li></ul><ul><li>Fragrant greenish yellow flowers </li></ul><ul><li>NOXIOUS WEED in Colorado </li></ul>
    19. 31. Eleagnus angustifolia ID <ul><li>small, sessile, solitary, conical buds </li></ul><ul><li>suckers / invasive </li></ul><ul><li>alternate leaf arrangement </li></ul><ul><li>brown lenticels cover every part of plant </li></ul><ul><li>silvery look to foliage, fruit and flowers </li></ul><ul><li>yellow fruit </li></ul>
    20. 32. Eleagnus angustifolia liabilities <ul><li>thorns sometimes present </li></ul><ul><li>leaf spot, canker, aphids </li></ul><ul><li>Verticillium wilt </li></ul><ul><li>INVASIVE WEED </li></ul>
    21. 33. Fabaceae family flower                                                                                                                 
    22. 34. Cercis canadensis Eastern Redbud
    23. 35. Cercis canadensis <ul><li>a small, deciduous tree </li></ul><ul><li>20' to 30' tall </li></ul><ul><li>25' to 35' wide </li></ul><ul><li>shape is rounded to broad and flat-topped </li></ul><ul><li>branching is upright and spreading to irregular </li></ul><ul><li>main trunk is short, dividing into several large branches close to the ground </li></ul>
    24. 39. ID Cercis canadensis <ul><li>zigzag stem growth </li></ul><ul><li>heart-shaped leaves </li></ul><ul><li>numerous rosy-pink pea-like flowers </li></ul><ul><li>short main trunk </li></ul><ul><li>scaly dark brown bark with orange inner bark </li></ul><ul><li>broad rounded to flat-topped shape when mature </li></ul><ul><li>persistent legume pod fruits </li></ul><ul><li>flower buds stalked and in clusters </li></ul>
    25. 40. Cercis canadensis liabilities <ul><li>lack of cold hardiness if proper genetic material isn't used </li></ul><ul><li>twig kill and dieback in zones 5 and 4 </li></ul><ul><li>wood can be brittle with trees splitting at crotches </li></ul><ul><li>persistent fruits can be objectionable </li></ul><ul><li>canker </li></ul><ul><li>tends to be short-lived, especially when exposed to chronic stresses </li></ul>
    26. 41. Gleditsia triacanthos var. inermis Thornless Honeylocust
    27. 42. Gleditsia triacanthos <ul><li>a medium to large deciduous tree </li></ul><ul><li>50' to 60' tall </li></ul><ul><li>spread is usually equal to height </li></ul><ul><li>branching is upright-spreading to arching or more or less horizontal </li></ul><ul><li>some trees become nearly flat-topped </li></ul><ul><li>rather loose and open </li></ul><ul><li>casts only light shade </li></ul><ul><li>develops a short main trunk </li></ul>
    28. 46. ID Gleditsia triacanthos <ul><li>pinnate and bipinnately compound leaves </li></ul><ul><li>upright-spreading, arching or horizontal branching </li></ul><ul><li>short main trunk </li></ul><ul><li>large thorns on trunk and branches </li></ul><ul><li>large flat, twisted pods </li></ul>
    29. 47. Gleditsia triacanthos liabilities <ul><li>large thorns can be dangerous </li></ul><ul><li>pods can be messy </li></ul><ul><li>bagworm </li></ul><ul><li>spider mites </li></ul><ul><li>mimosa webworm </li></ul><ul><li>pod gall midge </li></ul><ul><li>cankers </li></ul>
    30. 48. Gymnocladus dioicus Kentucky Coffeetree
    31. 49. Gymnocladus dioicus <ul><li>a large deciduous tree </li></ul><ul><li>grows up to 75' tall or even larger </li></ul><ul><li>develops a 40' to 50' spread </li></ul><ul><li>upright to irregular branching </li></ul><ul><li>coarse, but picturesque branching in winter </li></ul><ul><li>shape is obovate </li></ul>
    32. 52. Gymnocladus doicus ID <ul><li>large tree </li></ul><ul><li>coarse branching </li></ul><ul><li>rough gray bark </li></ul><ul><li>stout twigs </li></ul><ul><li>buds embedded in wood, barely visible through a small &quot;belly button&quot;-like opening </li></ul><ul><li>bud considerably above the leaf scar </li></ul><ul><li>female plants with large, chunky pods </li></ul><ul><li>large heart - shaped leaf scars </li></ul>
    33. 53. Robinia pseudoacacia Black Locust <ul><li>a medium-sized deciduous tree </li></ul><ul><li>an upright tree with a somewhat narrow crown that is widest near the top </li></ul><ul><li>branching is upright to irregular </li></ul><ul><li>trunk is long and straight </li></ul><ul><li>typically 40' to 50' tall but can be up to 70' tall </li></ul>
    34. 54. Robinia pseudoacacia ID <ul><li>pinnately compound blue-green leaves </li></ul><ul><li>narrow crown widest near the top </li></ul><ul><li>white pendulous clusters of pea-like flowers; fragrant </li></ul><ul><li>rope-like, thick, gray bark </li></ul><ul><li>persistent flat brown pods </li></ul><ul><li>stems glabrous with thorns around the buds on vigorous shoot </li></ul>
    35. 61.                                                              
    36. 64. Robinia pseudoacacia liabilities <ul><li>a somewhat unkempt plant at times </li></ul><ul><li>can spread by seed and root suckers </li></ul><ul><li>locust borer </li></ul><ul><li>leaf miner can totally disfigure plants by summer making them appear as through hit by a flame thrower </li></ul>
    37. 65. ‘Purple Robe’
    38. 66. Purple Robe high to moderate water
    39. 67. Sophora japonica Japanese Pagoda Tree
    40. 68. Sophora japonica <ul><li>40-60’ tree </li></ul><ul><li>Alternate, pinnately compound dark green leaves </li></ul><ul><li>No Fall color </li></ul><ul><li>White, pea-like flower </li></ul><ul><li>3-8” string like pod </li></ul>
    41. 71. Flowers in August
    42. 73. Sophora japonica ID <ul><li>olive-green bark on stems and young branches with raised tan lenticels </li></ul><ul><li>fleshy, greenish pod as a fruit with constrictions between seeds </li></ul><ul><li>upright wide spreading habit </li></ul><ul><li>pea-like flowers </li></ul><ul><li>terminal fruit persists </li></ul>
    43. 74. Liabilities <ul><li>twig kill in severe winters </li></ul><ul><li>canker that is made worse by cold injury </li></ul><ul><li>can be messy due to dropped petals, fruit, and leaves </li></ul>
    44. 75. Pendula – no flowers
    45. 76. ‘Regent’ <ul><li>This superior form is probably the most common selection in commerce </li></ul><ul><li>It grows more quickly to form a broad-rounded crown to 50' tall </li></ul><ul><li>It reportedly begins to flower earlier than seedlings, plus the foliage is glossy and handsome. </li></ul><ul><li>It has performed well in urban, polluted areas. </li></ul>
    46. 77. Koelreuteria paniculata Golden Raintree
    47. 81. ID Koelreuteria paniculata <ul><li>sparsely branched medium-sized tree of rounded outline </li></ul><ul><li>yellow flowers in mid-summer </li></ul><ul><li>inflated fruits </li></ul><ul><li>twigs brownish with conspicuous lenticels </li></ul><ul><li>Alternate, pinnately compound leaves </li></ul><ul><li>Distinct seed pods </li></ul>
    48. 82. Aesculus glabra Ohio Buckeye <ul><li>Height 35’ Spread 35’ </li></ul><ul><li>Medium water </li></ul><ul><li>NO salt tolerance </li></ul><ul><li>Showy yellow flowers </li></ul><ul><li>Leaves opposite, palmately compound </li></ul><ul><li>5 leaflets </li></ul><ul><li>Brown 1-2” nutlets </li></ul><ul><li>Fall color- pumpkin orange </li></ul>
    49. 83.                                      
    50. 89. Large terminal bud
    51. 90. Aesculus glabra ID <ul><li>large, palmately compound leaves typical of Aesculus </li></ul><ul><li>fruits have short prickles A. hippocastanum have long prickles) </li></ul><ul><li>large terminal bud typical of Aesculus ; non-resinous </li></ul><ul><li>Droop and swoop branches </li></ul><ul><li>Nice fall color </li></ul>
    52. 91. Liabilities <ul><li>dense shade limits grass growth underneath </li></ul><ul><li>leaf scorch and leaf drop are problems when planted in too small an area </li></ul><ul><li>leaf blotch, powdery mildew, canker; also an assortment of scales, mealybugs, caterpillars and borers </li></ul><ul><li>this species and A. hippocastanum most likely to develop troubles of this genus </li></ul><ul><li>can be messy (leaf, twig, fruit litter </li></ul>
    53. 92. Aesculus hippocastanum Horsechestnut
    54. 94. Very showy flowers blotches of red and yellow
    55. 98. <ul><li>ID Features </li></ul><ul><ul><li>large, resinous buds, reddish brown </li></ul></ul><ul><ul><li>large, 7-leaflet, palmately-compound leaves </li></ul></ul><ul><ul><li>leaves have impressed veins </li></ul></ul><ul><ul><li>fruits are the most spiny of all Aesculus </li></ul></ul><ul><ul><li>Avoid hot, dry locations </li></ul></ul>
    56. 99. Liabilities <ul><li>fruits can be messy </li></ul><ul><li>large and cannot be used at small residences </li></ul><ul><li>leaf scorch and blotch can be serious problems and occur to some degree nearly every year </li></ul><ul><li>powdery mildew </li></ul><ul><li>young leaves and fruit are considered poisonous </li></ul>
    57. 100. Ailanthus altissima Tree of Heaven <ul><li>Height 40-60’ Spread 30-40’ </li></ul><ul><li>No water needed after establishment </li></ul><ul><li>* Alternate, pinnately compound, 1-3 foot leaves, 11-41 leaflets, leaflets 2-6” </li></ul><ul><li>Flowers yellow-green, bad odor </li></ul><ul><li>Fruit: twisted samara 1-1 ½” long with seed in the center </li></ul><ul><li>Twig – velvety hairs, red-brown pith </li></ul>
    58. 101. Ailanthus altissima <ul><li>Bark looks like the skin of a cantelope </li></ul><ul><li>Form – short to medium sized tree with heavy branches </li></ul><ul><li>Tends to droop </li></ul><ul><li>Grows in clumps </li></ul>
    59. 107. Ailanthus altissima <ul><li>ID Features </li></ul><ul><li>very large, pinnately compound leaves with many leaflets </li></ul><ul><li>general acrid odor to plant (male flowers, leaves, twigs) </li></ul><ul><li>twigs short, reddish-brown, velvety </li></ul><ul><li>large leaf scars with small, two-scaled buds </li></ul><ul><li>light brown, wide pith </li></ul>
    60. 108. Liabilities <ul><li>prolific fruiting, ready germination, adaptability to harsh sites and rapid growth rate make it a noxious weed in many places </li></ul><ul><li>short-lived, in general </li></ul><ul><li>male flowers, bruised twigs and crushed leaves have an acrid odor </li></ul><ul><li>weak, softwood breaks easily in storms </li></ul><ul><li>verticillium wilt </li></ul>
    61. 109. ID from Photographs
    62. 110. ID by Leaf
    63. 117. ID by Flower
    64. 122. ID by Fruit
    65. 133. ID by entire tree

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