The tendril of this pea plant...

The stems of most plans grow upwards and support themselves. Some plants have stems that are too weak to support themselves and instead grow up the sides of other, larger plants. They may have structures called tendrils , which look like springs, growing and curling around the parts of the supporting plant.A few plants have stems that grow across the ground or even under it. The ginger plant has an underground stem in which it stores food.............