The mother-in-law plant a.k.a. the snake plant, also known as the sword plant, is among the toughest houseplants you can grow. It’s Latin name is “sansevieria,” is named after the Italian Prince of Sansevieria, a horticulturist in the 18th century. They resemble swords and are related to agave. Sansevieria leaves are very fibrous and are used to make rope in some parts of the world. They also tolerate most any conditions in the home with ease. They rarely flower, but when they do they have a wonderful fragrance.