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This study aims to disentangle how plant-environment relationships vary with latitude and among plant taxa. We collected global distribution occurrence data of plant groups (625 families, 6,221 genera, and 54,101 species). We used random forest to quantify the relative importance of 15 environmental factors (including climate, soil and topography) on plant distributions at global and regional scales (divided into different latitude zones). We also used phylogenetic generalized least square (PGLS) model to investigate the relationship between environmental variables and geographical range size, latitudinal range and limits of plants at the global scale.<br>The occurrence records of global plant families/genera/species were downloaded from GBIF database. Associated environmental variables were derived from multiple global databases, according to the coodinates of plants occurrences. All raw data were manipulated in R program to cope with data bias in some extents.