Trait evolution rates shape continental patterns of species richness in North America's most diverse angiosperm genus (Carex, Cyperaceae)
Jocelyn E. Pender, Andrew L. Hipp, Marlene Hahn, and Julian R. Starr
Journal of Systematics and Evolution . 2021, (4): 763 -775 .  DOI: 10.1111/jse.12739