Polystemma canisferum (Apocynaceae, Asclepiadoideae): a distinctive new gonoloboid milkweed vine from Sonora, Mexico
. Phytotaxa, Auckland, New Zealand, v. 246, n. 1, p. 78–84, 2016. DOI: 10.11646/phytotaxa.246.1.6. Disponível em: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.246.1.6. Acesso em: 9 apr. 2025.