Its scientific name is Pilea Mollis, and its common name of "Moon Valley" is said to be due to the craggy, textured leaves resembling the craters on the moon itself.
Water: try to keep soil evenly moist, but not too wet. Water less in winter.
Light: This plant thrives best when given plenty of bright, indirect sunlight. The more light, the more growth and variegation you will see.
Soil: Does best in a light, well draining potting mix.
Humidity: These guys like a bit of humidity. Mist often or keep near a humidifier.
Fertilizer: Fertilize once a month throughout growing season. Don't fertilize throughout winter months.