Gymnocalycium gaponii ssp geyerii. Sierras de Crdoba, Argentina. Mammillaria evermanniana Gymnocalycium nigriareolatum Wikipedia Gymnocalycium mostii or Most's Gymnocalycium Care and Growing Brown edges on Monstera leaves are common. But they're rarely random. Often it's your plant quietly responding to something in its environment. Here are four things worth checking: Korbmarante FloraSelf Calathea ornata H 45 50 cm 14 cm Topf HORNBACH Luxemburg