Zavatin, D. A., R. Ramos, M. Monge, and R. M. Harley. “A New Species of Hypenia (Lamiaceae, Hyptidinae) from the Espinhaço Range, Brazil”. Phytotaxa, vol. 682, no. 1, Jan. 2025, pp. 81-90, doi:10.11646/phytotaxa.682.1.5.