Environmental impact on the temporal production of chasmogamous and cleistogamous flowers in the mixed breeding system of Viola pubescens Sternberger, Anne L. ; Ruhil, Anirudh V. S. ; Rosenthal, David M. ; Ballard, Harvey E. ; Wyatt, Sarah E. Abstract Publication: PLoS ONE Pub Date: March 2020 DOI: 10.1371/journal.pone.0229726 Bibcode: 2020PLoSO..1529726S