Southwestern Plant Family Galleries Arranged Alphabetically
For the most part, I am following the
Angiosperm Phylogeny Group III for family-level and higher taxonomy. The Angiosperm Phylogeny Website also
follows APGIII (so far as I can tell) and provides all kinds of supplementary information.
See this page for a brief list of families that have changed
recently or might otherwise be confusing. I've added infrafamilial taxa for
some particularly large or heterogenous families.