References

For Laphamia

Lichter-Marck, I.H., and B.G. Baldwin. 2022. A phylogenetically informed reclassification of the rock daisies (Perityleae; Compositae). Syst. Bot. 47(3): 802-816. Google Scholar

Powell, A.M. 1973. Taxonomy of Perityle section Laphamia (Compositae-Helenieae-Peritylinae). Sida 5(2): 61-128. Google Scholar

Yarborough, S.C., and A.M. Powell. 2006b. Perityle. In Flora of North America Editorial Committee. 2006c. Flora of North America north of Mexico. Volume 21, Magnoliophyta: Asteridae, part 6: Asteraceae, part 3. Oxford Univ. Press, New York, NY. 616 pp. Google Scholar