This study uses two chloroplast genes (psbA and rbcL) and morphological data collected online and from herbarium specimens to generate phylogenetic trees for 13 species of maple (Acer). Alignment of sequences and phylogenetic analyses were performed and visualized with the programs MUSCLE, RAXML, MrBayes, MESQUITE, and ITOL. ML and Bayesian analyses were used to generate phylogenetic trees, and these were compared with results from a previous study by Li. Results indicate that Acer griseum, Acer caesium, Acer hyrcanum, and Acer platanoides form a monophyletic terminal clade, and this is the most robust result of these analyses. Acer grandidentatum and Acer saccharum are monophyletic in the ML analysis, but unresolved in the Bayesian analyses, which makes sense because Acer grandidentatum is a subspecies of Acer saccharum.