The North American species of Trillium subgenus Trillium include some of the pedicellate species, is the only clade of Trillium that has a North American-Asian disjunction pattern. In North America, the distribution of subg. Trillium is disjunct with one species in W NA (T. hibbersonii) and the remainder in eastern North America. Most of the North American diversity is in the Southern Appalachians with several local endemics, e.g. T. simile and T. vaseyi. Here we provide updated phylogenetic analyses doubling our taxon sampling from what we discussed in 2022, using the Angiospermum 353 nuclear capture kit and genomic skimming data to discern the number of species and their relationships with a secondary focus on their apparent hybridization in the Southern Appalachians. We will discuss these results, including how they impact current species concepts and rarity. We have completed a typification of all published names in subg. Trillium that includes newly designated lectotypes for T. flexipes, T. rugelii, and T. vaseyi. We also lectotypify the name of T. rhomboideum var. album (=T. rugelii) which has been associated with T. erectum.