DUMAW, K. E.; PRYER, K. M.; WINDHAM, M. D.; HAY, N. M. Herbarium specimens reveal a significantly earlier flowering trend for Cypripedium acaule (Orchidaceae) in North Carolina (U.S.A.). Journal of the Botanical Research Institute of Texas, [S. l.], v. 19, n. 3, p. 211–221, 2025. DOI: 10.17348/jbrit.v19.i3.1424. Disponível em: https://journals.brit.org/jbrit/article/view/1424. Acesso em: 27 sep. 2025.