Underground stems of some plants such as grass and strawberry, etc., spread to new niches, and when older parts die, new plants are formed. In plants like mint and jasmine, a lateral branch arises from the base of the main axis and, after growing aerially for some time, moves downwards to touch the ground. A lateral branch with short internodes and each node bearing a rosette of leaves and a tuft of roots is found in aquatic plants like Pistia and Eichhornia. In banana, pineapple, and Chrysanthemum, the lateral branches originate from the basal and underground portion of the main stem, grow horizontally beneath the soil and then come out obliquely upward, giving rise to leafy shoots.