Birdsnest Sansevieria (sansevieria trifasciata hahnii): Your Sansevieria is a low-growing succulent prized for its dramatic marked foliage that forms a vase-like rosette of elliptic, spirally arranged leaves. Grows in clumps and suckers readily - each plant measures about 12 inches by 12 inches. It is very water thrifty and only needs to be watered when the top inch of soil feels dry. Indoors needs bright, indirect light. Your particular plant appears to be the variety 'Golden Hahnii'.