The scroll in art is an element of ornament and graphic design featuring spirals and rolling incomplete circle motifs, some of which resemble the edge-on view of a book or document in scroll form, though many types are plant-scrolls, which loosely represent plant forms such as vines, with leaves or flowers attached.
A lengthy evolution over the last two millennia has taken forms of plant-based scroll decoration from Greco-Roman architecture to Chinese pottery, and then back across Eurasia to Europe.
In the usual artistic convention, scrolls "apparently do not succumb to gravitational forces, as garlands and festoons do, or oppose them, in the manner of vertically growing trees.
Scrollwork in its strict meaning is rather different; the scroll is imagined as the curling end of a strip or sheet of some flat and wide material.
It develops from strapwork, as the ends of otherwise flat elements, loosely imitating leather, metal sheets, or broad leaves rather than plant tendrils.
Another expansion was to the East: "The practice of decorating facades in Chinese Buddhist caves with figures combined with leaf scrolls was derived in its entirety from provincial forms of Hellenistic architecture employed in Central Asia"; they appear in China from the 5th century.
In the Islamic world the external influences were initially mainly from their Byzantine and Sasanian predecessors, but later, especially after the Mongol conquests, from Chinese designs, especially in pottery, which themselves had developed from the original Buddhist importation to China.
From the late medieval period onwards Chinese and Indian scrolling styles, and their Islamic cousins, were imported to Europe on pottery and textiles, reaching a peak of influence in the 18th-century.
In other types the heart-shaped core is omitted, the scroll taking the form of an "S" with voluted ends, generally seen in confronted pairs, as in the mosaics of the Treasury of the Great Mosque of Damascus, Byzantine work of the 7th century.
Scrollwork (in the popular definition) is most commonly associated with Baroque architecture, though it saw uses in almost every decorative application, including furniture, metalwork, porcelain and engraving.
Modern blacksmiths use scrolls in ornamental wrought-iron work gates and balustrades, and they have formed the basis of many wallpaper designs.