Bark ID Lecture 1
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Flashcards following Lecture 1 in Tree School's "Fundamentals of Bark Identification Class"
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12 Terms
What is Bark?!
The outer layers of a tree’s stem, involved primarily in protection and sugar transport.
All of the layers produced, through lateral growth, outside the vascular cambium, including the inner bark, cork cambium, and outer bark.
List the Primary Bark Types!
Blocky, Ridged, Scaly. Plated, Piebald, Smooth, Papery, Lenticellate
Name this Primary Bark Type
Ridged: Bark with long, linear, vertical mountain-like ridges, with furrows (valleys) between.
Name this Primary Bark Type
Blocky: Bark with square or circular knob-like protrusions that are arranged like adjacent and abutting plateaus. Completely blocky bark is NOT linear.
Name this Bark Type!
Blocky-ridged: Bark with linear, vertical ridges, that are broken up along their length, and therefore each “ridge” is more “blocky.”
Name this Primary Bark Type
Scaly: Bark with small, circular or irregularly round, potato-chip-like scales that overlap or abut.
Name this Primary Bark Type
Flakey: Bark with small, rectangular or linear patches that overlap or abut.
Name this Primary Bark Type
Plated: Bark with large, broad, flat sheets that often lift from left or right.
Name this Primary Bark Type
Piebald: Bark with a camouflage-like irregular mosaic, formed by patched (scaly, flakey, or plated) bark which exfoliates extensively. Characterized by its irregularity, and a texture formed by relief. Also commonly referred to as lace-bark.
Name this Primary Bark Type
Smooth: Bark that maintains its smooth surface as it ages. Often gray and smooth, resembling elephant skin!
Name this Primary Bark Type
Papery-Exfoliating: Thin bark that peels in broad sheets or narrow frills.
Name this Primary Bark Type
Lenticellate: Bark that preserves the image of its lenticels as it ages, stretching them into horizontal lines that circle around the trunk. Lenticellate bark may stay smooth (like this photo) or it may develop into papery-exfoliating lenticellate bark.
