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. The ("Nelumbo nucifera") lotus flower was a symbol of Buddhism, and so very often included in these religious scroll designs from the 6th century on, which was to have a profound influence on Asian scroll designs, long after the religious significance had been largely or entirely forgotten, and in places where the actual lotus water plant was unknown.