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Combined species principal components analysis (PCA) of old world lupin (L. angustifolius, Ang; L. luteus, Lut; and L. albus, Alb) collection site climate, phenology, growth and vigor data from a common garden field study in 2008. Factor loadings for PC1 and 2 are presented as vectors (black for bioclimatic, green for biological variables), abbreviated as in Figures 2, 3.
