Ornamental grasses are grasses grown as ornamental plants. Terraria are often kept as decorative or ornamental items. Temperate colchicums are commonly grown in gardens as ornamental flowers. Some species are grown as ornamental plants. Some amaranth species are cultivated as leaf vegetables, pseudocereals, and ornamental plants. Yews are widely used in landscaping and ornamental horticulture. Some cinquefoils are grown as ornamental plants. Selected forms are grown as ornamental plants. Many are grown as ornamental and indoor plants. There was also a remarkable architectural flowering producing many substantial and ornamental buildings. Today European yew is widely used in landscaping and ornamental horticulture. Ivy is widely cultivated as an ornamental plant. There are several cultivars that are propagated for use as ornamental plants. Many species and hybrids are used as ornamental and street trees. Other species are used as rootstocks for European and Asian pears and as ornamental trees.