In art history, a "floriated" or "flower scroll" has flowers, often in the centre of the volutes, and a "foliated" or "leaf scroll" shows leaves in varying degrees of profusion along the stems. The Ara Pacis scrolls are foliated and sparingly floriated, whilst those in the Dome of the Rock mosaics are profusely foliated with thick leaves forming segments of the stems. As in arabesques, the "leaf" forms often spring directly from the stem without a leaf stalk in ways that few if any real plants do; these are generally derived from the ancient half-palmette motif, with the stem running along the bisected edge of the palmette. Although forms are often based on real plants, especially the acanthus, vine, lotus and paeony, faithful representation is rarely the point of the design, as of these four only the vine is actually the sort of climbing plant with many stems and tendrils that scrolls generally represent. Later Islamic and Chinese scroll decoration often included more flowers than European designs, whether classical or medieval (see below).