Willow stem identifiers
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资源简介：
This file contains identifying information for each willow stem collected and aged (stem number, site number, and species). Species (numbered 1-6) are: S. bebbiana, S. boothii, S. drummondiana, S. eriocephala, S. geyeriana, and S. pseudomonticola. Sites correspond to site numbers in Site Locations data file.
创建时间：
2014-01-01
