Euphorbia mammillaris variegata is aka "Indian Corn Cob". It forms stems in rows that look like "corn cobs". They are a light green with dark green and turn pink in the sun. Their growth time is late spring and summer months. Water thoroughly when soil is dry to the touch during active growing season. It needs bright light to look its best. They need to rest in winter and given less water. Please click photo for more information.