This South American species is rather unique in simultaneously developing two distinctly different types of leaves, one set an elongate ovular ground-hugging type that will blanket the soil, and the other (often produced along the edges of the pot here, interestingly), a tall, grass-like blade up to 6" or more tall. Exposure to strong seasonal changes supposedly should trigger development of stalks that sport several moderately sized, lemon-yellow flowers. 
Plants are sold as 1-1.5" diameter/deep plugs.