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
J Syst Evol . 2021, (4): 763 -775 .  DOI: 10.1111/jse.12739