Mother in Law's Tongue - Sansevieria trifasciataMother in Law's Tongue (Sansevieria trifasciata) If you want a plant that thrives on neglect while looking effortlessly stylish, Mother in Laws Tongue is the perfect choice. This tough, air purifying beauty features striking upright leaves and survives in almost any condition making it ideal for both beginners and busy plant lovers. Why Gardeners Love Mother in Law's Tongue Virtually Indestructible Survives neglect, low light, and minimal watering.