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
♦ 3Kattge, J. et al. (2011b)
TRY - a global database of plant traits Global Change Biology 17:2905-2935
♦ 4Wood Janka Hardness Scale/Chart J W Morlan's Unique Wood Gifts
♦ 5Wood Technology Transfer Fact Sheets U.S. Department of Agriculture - Forest Service
♦ 6Ben-Dov, Y., Miller, D.R. & Gibson, G.A.P.
ScaleNet 4 November 2009
♦ 7FORAGING ECOLOGY OF PARROTS IN A MODIFIED LANDSCAPE: SEASONAL TRENDS AND INTRODUCED SPECIES, GREG D. MATUZAK, M. BERNADETTE BEZY, AND DONALD J. BRIGHTSMITH, The Wilson Journal of Ornithology 120(2):353365, 2008
♦ 8HOSTS - a Database of the World's Lepidopteran Hostplants Gaden S. Robinson, Phillip R. Ackery, Ian J. Kitching, George W. Beccaloni AND Luis M. Hernández
♦ 9Phyllops falcatus, Valéria da Cunha Tavares, Carlos A. Mancina, MAMMALIAN SPECIES No. 811:1-7 (2008)