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Nebraska Wesleyan University, Botany, Bio 50, Benham, Tree exam, Fall 2011

Panicum virgatum/switchgrass

Grass w/Open, feathery seedhead

Andropogon gerardii/big bluestem

Grass, seed head shaped like turkey foot

Ginkgo Biloba

Only fan-shaped (palmate) veining

juniperus virginiana/eastern red cedar

Light blue berries, scaled leaves

Larix decidua/european larch

Triangular needles in bunches, male pinecones look like buds, female cones < i inch. Deciduous

Pinus nigra/austrian pine

needles 3-6", bark does not smell sweet. Bark in "plates" (?)

Pinus ponderosa

LONG needles, grow in pairs or threes, barks smells like vanilla

Pinus strobus/white pine

short, softer bunches of needles, long, woody cones. Needles longer than pinus flexilus

Scotch Pine/Pinus sylvestris

Red bark at top of tree, 3 inch twisted needles

Douglas Fir/Pseudotsuga menziesii

"mouse leg" pine cone, needles single, flat and smell like candy

bald cypress/taxodium distichum

Behind dining hall. Feathery evergreen-looking needles, round green cone (looks like scaled ball), red fibrous bark

Acer X Freemanii/Autmn Blaze maple

Leaves green on top, white on bottom, deep lobes. Stems red.

Acer platanoides/Norway Maple

Big five pointed leaves, looks like a sycamore, different bark, double propeller seeds

Acer saccharinum/Silver maple

Leaves green on top, white on bottom, deeper lobes, greenish-white stems

Acer saccharum/sugar maple

leaves smaller than other maples, 3 points, green top and bottom

Aesculus hippocastanum/horsechestnut

leaves opposite, Palmately compound, only one on campus!

Betula nigra/copper river birch

Peeling bark, often multiple trunks, bark light copper color.

Celtis occidentalis/hackberry

Warty/corky-ridged bark, asymmetrical serrated, pointed oval leaves that are longer than wide. Distinguish from elm: Center vein not only prominent vein, bark pattern disorganized.

Cercis Canadensis/redbud

Heart-shaped leaves, twigs zigzag and are glossy brown

Fraxinus pennsylvanicus/emerald ash

Second tallest tree on campus, bark looks black/white from distance/diamond pattern, leaves opposite, pinnately compound, smooth. Single propeller samara.

Gymnocladus dioica/kentucky coffee tree

Bipinnately compound, long, leathery seedpods

Liriodendron tulipifera/tulip tree

Four pointed lobes, no center point

Platanus occidentalis/sycamore

"camo bark", large, seed is bumpy ball w/silky insides, leaf: flat bottom, lobed, large and roughly triangular

Populus deltoides/cottonwood

Leaves med/large triangular flat on bottom, serrated. NE state tree

Populus tremuloides/quaking aspen

White bark, leaves tremble in breeze, round/teardrop shape, turn yellow in fall

Quercus macrocarpa/bur oak

Deep rounded lobes, acorns have fringe on caps

Quercus palustris/pin oak

Deep, pointed lobes, small acorns

Quercus rubra/Northern red oak

Lobes not as deep as pin oak, pointed lobes, "hairless" acorn caps

Tilia americana/American basswood

Asymmetrical, serrated, heart-shaped leaves. Has bract of fruit

Ulmus pumila/Siberian elm

Leaves serrated, pointed oval, no leaf at end of twig. Lots of small, pendulous branches. Bark w/zigzag-like furrows. Bark has "bleach" streaks running down from wounds. Clear central vein.

Picea Pungens/Blue Spruce

Needles are single and not flat, has blue hue.

Lespedeza capitata/Prairie bush clover

Flat leaves, little bunches of pale yellow buds

Amorpha canescens/lead plant

Purple flowers, flat leaves.

sorghastrum nutans

Contained seedheads

andropogon scoparius

Seedheads less distinct than big bluestem and indian grass, but not as feathery as switchgrass

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