Wood ID

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35 Terms

1
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American Elm

Single row of earlywood pores

Rays indistinct cross section (4-5 seriate)

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Red/Slippery Elm

multiple rows of earlywood pores

darkish red-brown heartwood

rays relatively indisinct

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Hackberry

multiple rows of earlywood pores

light brown heartwood with yellowish cast

rays more distinct than either elm

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N. Red Oak

multiple rows of round earlywood pores

tyloses absent or sparse (distinguish from white oak)

Ray ends thick and distinctive

pink/red brown

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White oak

Abundant tyloses (dif from n red)

“whiter” than red oak

latewood pores forming distinct dendritic masses

thick, distinct rays

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Fraxinus americana

wide sapwood band

larger growth rings than Fraxinus nigra

aliform parenchyma

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Fraxinus nigra

brighter wood than white ash

thinner growth rings than white ash

less obvious longitudinal parenchyma

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True hickory

distinctive longitudinal parenchyma does not extend into earlywood pores

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pecan hickory

distinctive longitudinal parenchyma extend into earlywood

may appear semi-ring porous instead of ring porous

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Juglans cinerea (Butternut)

Distinctive- Fluted growth rings

solitary or short radial multiple pores

apotracheal and/or diffuse in aggregate longitudinal parenchyma

light brown, often streaky

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Black walnut- Juglans nigra

Highly distinctive chocolate to purple wood

solitary or short multiple pores

short growth rings

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Prunus serotina

Diffuse porous

deep brown/yellow color

indistinct pores

ray fleck is distinct- light on dark

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13
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Populus spp.

cannot be reliably separated by hand lens

indistinct rays and pores

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14
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Betula spp.

light brown, light

pores small and appear as white dot, always wider than rays

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15
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soft maple (red, silver, boxelder)

grayish cast/streaks

ray ends typically less obvious than hard maple

larger growth rings than hard maple

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hard maple (Acer saccharum)

dense latewood band of dark brown

non obv LP

rays easily visible on cross ection

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17
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red alder (Alnus rubra)

reddish/pink tinted wood, indistinct growth rings

occasional wide aggregate rays

very light wood, indistinct but darker than aspen

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18
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American basswood (Tilia americana)

very light wood, marginal LP is reasonably distinct, less distinct than yellow-poplar

wide and evenly spaced rays, NODED

darker wood than aspen

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yellow-poplar (Liriodendron Tulipifera)

highly distinct rays, obvious green color with fresh cut

wood appears similar to aspen, but more distinct rays

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20
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American beech (Fagus grandifolia)

noded rays apparent, rays either 1-5 seriate or 15-20 seriate (noded rays apparent here)

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21
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red gum

reddish brown w grey cast

thin irregular growth rings but obviously diffuse

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22
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rubberwood- Hevea brasiliensis

blond/tan with indistinct growth rings

diffuse with very large pores (single or 2-4)

LP forms grid pattern

wood feels rubbery, indistinct but not light

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red lauan- Shorea spp.

large, evenly distributed pores, gum ducts, light brown wood

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24
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apitong- Dipterocarpus

exclusively large splitary pores (white dots), highly distinct grain

medium width rays

can be yellow/brown or red/brown

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25
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American mahogany- Switiena macrophylla

large diffuse pores, distinct rays, red wood

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26
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teak- Tectona grandis

variable pore arrangement, tyloses, distinct rays, golden brown color

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27
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soft pine (Pinus strobus)

very light, large, solitary resin canals, indistinct EW to LW transition, fusiform rays

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hard pine

highly distinctive growth rings, resin canals obv in LW, appear as white dots, much denser than soft pine

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spruce (picea spp.)

soft, white, and light. Look for resin canals to differentiate, canals can be solitary or short rows, show up in clusters (sporadic) distinct transition to LW

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Doug fir/ larch (Psuedotsuga menziesii, Larix spp.)

smells funk as fuck when wet

resin canals in LW, distinct growth rings

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hemlock/fir

gradual E-LW transition (more abrupt in hemlock)

medium percent latewood

often confused w/ spruce, but NO resin canals, gr more distinct

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redwood- Sequoia sempervirens

deep brown but very light, obv thing gr and rays (form grid), coarse texture

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baldcypress- Taxodium distichum

yellow EW, brown LW, abrupt transition. may smell funky, very thin gr

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western red cedar- Thuja plicata

higher density than other softwoods, distinct gr, highly distinct sweet smell

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eastern red cedar- Juniperus virginiana

cedar chest smell, very low density (carves easily), distinct growth rings

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