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APES Unit 3B Dendrology Flashcards

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15737813505conifers- needle shaped leaves - seeds that develop inside cones - evergreen - green year round0
15737815807tree- height at least 4.5 meters - single woody stem (trunk) - capable of diameter growth - perennial plant (plant that lives for 2 or more years)1
15737821027shrub- heights under 4.5 meters - multi-stemmed - capable of diameter growth - perennial plant2
15737829143needle, scale, clusters, singlesConifer leaves characteristics3
15737832596deciduous trees- broad, flat leaves - lose all leaves each year in the fall - angiosperm (flowering plants), broadleaf, hardwood - ex: oak, maple, beech, aspen, ash4
15737838687leaf arrangementwhorled, alternate, opposite5
15737841583leaf typesimple or compound6
15737841584leaf margin (edge)entire (smooth), lobed (projection), toothed (serrated)7
15737849747arrangement, type, margin, shapeWhat are the 4 characteristics of trees8
15737849748opposite leaf arrangementleaves and twigs growth directly apart from each other on branches9
15737857688alternate leaf arrangementleaves and twigs grow on branch in an alternating pattern10
15737860599whorled leaf arrangement11
15737864087singleleaf type: - only one leaf blade - joined by its stalk to the woody stem - examples: maple, oak aspen12
15737876357compound leafleaf type: - made up of several leaflets - leaflets are joined to a midrib that is not wood - examples: ash, walnut, sumac13
15737882052pinnate compound14
15737883361palmate compound15
15737884114doubly compound16
15737889605leaf scars (buds)the places where the leaves used to be attached - size, color, and shape of buds also useful to ID trees17

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