pulvinus
nounA cushionlike swelling at the base of the stalk of a leaf or leaflet.
In botany, same as cushion, 2 .
A joint on a plant leaf or petiole that may swell and cause movement of the leaf or leaflet.
A cushionlike swelling at the base of the stalk of a leaf or leaflet.
In botany, same as cushion, 2 .
A joint on a plant leaf or petiole that may swell and cause movement of the leaf or leaflet.
