SMITH, G. F.; CROUCH, N. R. Kalanchoe steyniae (Crassulaceae subfam. Kalanchooideae; K. [subg. Kalanchoe sect. Raveta] ser. Rotundifoliae), a new, small-growing, shrubby species from eastern southern Africa. Phytotaxa, Auckland, New Zealand, v. 659, n. 3, p. 268–276, 2024. DOI: 10.11646/phytotaxa.659.3.4. Disponível em: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.659.3.4. Acesso em: 6 dec. 2025.