Swanepoel W, Wyk AEV. Petalidium karasbergense (Acanthaceae), a new species from Namibia. Phytotaxa [Internet]. 2023 Aug. 17 [cited 2025 Dec. 6];609(1):1-9. Available from: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.609.1.1