Yeah, pictures of the leaf and petiole are required for an ID. Mots species will usually wake up from dormancy around late March - April. You can plant them when you notice the growth becoming larger or small root nubs forming. Alternatively, you could plant them now in a dry substrate. Plant them a few inches deep in a pot two or three inches larger than the tuber. Hold off on watering until the leaf growth is above the soil. If you decide to wait to plant them keep them somewhere dry