Zacarías-Correa AG, Pérez-Calix E, Samain M-S.

Penstemon dugesii (Plantaginaceae), a new species from Guanajuato, Mexico

. Phytotaxa [Internet]. 2020 Jun. 10 [cited 2025 Dec. 7];447(3):209–215. Available from: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.447.3.7