Attributes / relations provided by ♦ 1i-Tree Species v. 4.0
, developed by the USDA Forest Service's Northern Research Station and SUNY-ESF using the Horticopia, Inc. plant database. ♦ 2USDA Plants Database
, U. S. Department of Agriculture ♦ 3
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Kattge, J. et al. (2011b) TRY - a global database of plant traits
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Ben-Dov, Y., Miller, D.R. & Gibson, G.A.P. ScaleNet
4 November 2009 ♦ 6
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Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions
: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.