Answer: The three sisters important to early American settlers were Squash, Corn and Beans.
Explanation: In addition to nutritional value, the crops would help each other grow. The corn would sprout first and grow tall, which enable the bean plant something to attach to, while both provided shade for the squash plant that grows lower to the ground. The squash plant would cover the ground to keep weeks from attacking the other two plants. Many native American settlers grew these plants together before pilgrims arrived in the 1600's. Nutrition was important, especially in desert areas, like Nevada, where other crops would not grow easily.