What is pulvine?

Pulvine is a term used in botany to describe a specialized structure found at the base of certain plants, particularly in legumes, that can facilitate movement or growth in response to environmental stimuli. It is often associated with the plant's ability to bend or grow towards light, a phenomenon known as phototropism. The term can also refer to specific structures in certain fungal species. Overall, pulvine structures play a role in the adaptive strategies of plants and fungi.