E. Hardcastle

Conservation Genetics of Delphinium Newtonianum Dw. Moore (Moore's Delphinium) [Ranunculaceae], A Rare Endemic of The Interior Highlands

J. Gentry, E. Hardcastle, 2009 .

A VASCULAR PLANT INVENTORY OF HOWELL WETLANDS, A NATURE PRESERVE WITHIN THE CITY OF EVANSVILLE, INDIANA

J. Keller, S. A. Gordon, E. Hardcastle, 2005 .

Distribution, Habitat, and Current Population Size Estimates for Polymnia Cossatotensis (Cossatot Leafcup) [Asteraceae], a Rare Arkansas Endemic

R. McElderry, J. Gentry, E. Hardcastle, 2007 .