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Woody Plants Group 2b
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Woody Plants Group 2b

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Woody Plants Group 2b Woody Plants Group 2b Presentation Transcript

  • Group 2 B
    • Cercis canadensis
    • Gleditsia triacanthos var. inermis
    • Gymnocladus dioca (dioicus)
    • Koelreuteria paniculata
    • Robina pseudoacacia
    • Sophora japonica
    • Eastern Redbud
    • Thornless Honeylocust
    • Kentucky Coffeetree
    • Goldenrain Tree
    • Black Locust
    • Japanese Pagoda Tree
  • Fabaceae family flower                                                                                                                 
  • Cercis canadensis Eastern Redbud
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  • ID Cercis canadensis
    • a small, deciduous tree
    • 20' to 30' tall
    • 25' to 35' wide zigzag stem growth
    • heart-shaped leaves
    • numerous rosy-pink pea-like flowers
    • short main trunk
    • scaly dark brown bark with orange inner bark
    • broad rounded to flat-topped shape when mature
    • persistent legume pod fruits
    • flower buds stalked and in clusters
  • Cercis canadensis liabilities
    • twig kill and dieback in zones 5 and 4
    • wood can be brittle with trees splitting at crotches
    • persistent fruits can be objectionable
    • canker
    • tends to be short-lived, especially when exposed to chronic stresses
  • Gleditsia triacanthos var. inermis Thornless Honeylocust
  • ID Gleditsia triacanthos
    • pinnate and bipinnately compound leaves
    • upright-spreading, arching or horizontal branching
    • large thorns on trunk and branches
    • large flat, twisted pods
  • Gleditsia triacanthos
    • a medium to large deciduous tree
    • 50' to 60' tall
    • spread is usually equal to height
    • branching is upright-spreading to arching or more or less horizontal
    • some trees become nearly flat-topped
    • rather loose and open
    • casts only light shade
    • develops a short main trunk
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  • Gleditsia triacanthos liabilities
    • large thorns can be dangerous
    • pods can be messy
    • bagworm
    • spider mites
    • mimosa webworm
    • pod gall midge
    • cankers
  • Gymnocladus dioicus Kentucky Coffeetree
  • Gymnocladus dioicus
    • a large deciduous tree
    • grows up to 75' tall or even larger
    • develops a 40' to 50' spread
    • upright to irregular branching
    • coarse, but picturesque branching in winter
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  • Gymnocladus doicus ID
    • buds embedded in wood, barely visible through a small "belly button"-like opening
    • bud considerably above the leaf scar
    • female plants with large, chunky pods
    • large heart - shaped leaf scars
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  • Koelreuteria paniculata Golden Raintree
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  • ID Koelreuteria paniculata
    • sparsely branched medium-sized tree of rounded outline
    • yellow flowers in mid-summer
    • inflated fruits
    • twigs brownish with conspicuous lenticels
    • Alternate, pinnately compound leaves
    • Distinct seed pods
  • Robinia pseudoacacia Black Locust ID
    • pinnately compound blue-green leaves
    • narrow crown widest near the top
    • white pendulous clusters of pea-like flowers; fragrant
    • rope-like, thick, gray bark
    • persistent flat brown pods
    • stems glabrous with thorns around the buds on vigorous shoot
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  • Robinia pseudoacacia liabilities
    • Messy
    • spread by seed and root suckers
    • locust borer
    • leaf miner can totally disfigure plants by summer making them appear as through hit by a flame thrower
  • ‘Purple Robe’
  • Purple Robe high to moderate water
  • Sophora japonica Japanese Pagoda Tree
  • Sophora japonica
    • Big 40-60’ tree
    • Alternate, pinnately compound dark green leaves
    • No Fall color
    • White, pea-like flower in Summer
    • 3-8” string like pod
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  • Flowers in August
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  • Sophora japonica ID
    • olive-green bark on stems and young branches with raised tan lenticels
    • fleshy, greenish pod as a fruit with constrictions between seeds
    • upright wide spreading habit
    • pea-like flowers
    • terminal fruit persists
  • Liabilities
    • twig kill in severe winters
    • canker that is made worse by cold injury
    • can be messy due to dropped petals, fruit, and leaves
  • Pendula – no flowers
  • ‘Regent’
    • This superior form is probably the most common selection in commerce
    • It grows more quickly to form a broad-rounded crown to 50' tall
    • It reportedly begins to flower earlier than seedlings, plus the foliage is glossy and handsome.
    • It has performed well in urban, polluted areas.
  • ID from Photographs
  • ID by Leaf
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  • ID by Flower
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  • ID by Fruit
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  • Small Pod
  • Long Pod
  • Chunky pod
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  • ID by entire tree
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