Eric Westhus

Bee-Mediated pollen transfer in two populations of Cypripedium montanum Douglas ex Lindley

P. Bernhardt, N. Vance, Retha Edens-Meier, 2014 .

Floral fraudulence: Do blue Thelymitra species (Orchidaceae) mimic Orthrosanthus laxus (Iridaceae)?

R. Raguso, P. Bernhardt, Retha Edens-Meier, 2014 .

Pollen‐Pistil Interactions in North American and Chinese Cypripedium L. (Orchidaceae)

Yi-Bo Luo, P. Bernhardt, P. Li, 2010, International Journal of Plant Sciences.

The Pollination Biology of an Annual Endemic Herb, Physaria filiformis (Brassicaceae), in the Missouri Ozarks Following Controlled Burns1

P. Bernhardt, M. Arduser, M. Joseph, 2011 .

Reproductive ecology of Asclepias meadii Torr. ex A.Gray (Apocynaceae), a federally threatened species1

T. L. Dickson, P. Bernhardt, M. Arduser, 2017, The Journal of the Torrey Botanical Society.

Floral biology of large-flowered Thelymitra species (Orchidaceae) and their hybrids in Western Australia

P. Bernhardt, Retha Edens-Meier, Eric Westhus, 2013 .

Pollination Ecology of Cypripedium reginae Walter (Orchidaceae): Size Matters

Peter Bernhardt, P. Bernhardt, M. Arduser, 2010 .