Yes. Parenchyma cells are plant cells: they make up parenchyma, a living plant tissue typically composed of thin-walled cells. According to Encyclopaedia Britannica, parenchyma tissue appears in the inner layers of leaves, in fruits and seeds, and in the cortex and pith of roots and stems.
It is one of the three ground tissues in plants and handles core jobs such as photosynthesis, food storage, and secretion. Because the cells usually stay alive and can divide, parenchyma also helps plants repair wounds and regenerate tissue.
Source: Encyclopaedia Britannica — Parenchyma (plant tissue)