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You are here: > Outdoor Learning Activities > Tree Rings for Art and Dendrology Studies > COTTONWOOD TREE ROUND (Western Riparian). |
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COTTONWOOD TREE ROUND (Western Riparian).
ITEM #: T-18083
PRICE: $2.79
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| Resource Description
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| COTTONWOOD TREE ROUND (Western Riparian). Cottonwoods are commonly found along dry stream beds in the west and on the upper banks of permanent flowing rivers. The species we offer is the Fremont cottonwood, found from Texas to California. This tree branch cross section (disc or tree cookie) is is perfect for studying seasonal tree rings to calculate the age of a tree or limb, identify tree anatomy (heartwood, sapwood, cambium and inner/outer bark layers), study different growth patterns (tree ring irregularities, evidence of branching) and variation in growth patterns and climatic variations over time. Each cross section is fine sanded on one side to assist in reading tree rings. Since there is variation among all of the rounds, looking at several specimens of each species provides for an optimal learning experience. Individual disc size ranges from 2” to 4” across by 1/4” to 3/8” thick. #T-18083.
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