[8] Its flowers are small and white, radial, and arranged in a compound bracteate cyme, having five sepals and five petals with several stamens and a few pistils.

[1] The transfer was supported in 2014, based on molecular phylogenetic evidence, although the authors of the study noted distinct morphological differences from other members of the genus.

[3] Sibbaldia tridentata prefers dry and acidic soil, usually on rocky or gravelly shores that have access to a lot of sun.

[7] The species is located all over the central to eastern American states, with disjunct populations extending down the Appalachian Mountains.

[12][13] In Nova Scotia, the species is very common in the center of the Annapolis Valley and around cliffs or rocky outcrops.

[14] The southernmost known populations are located in Georgia and North Carolina, and occupy high-elevation rock outcrops and grassy balds.