Hippeastrum hybrids and cultivars are perennial herbaceous bulbous plants that are valued for their large ornamental flowers, particularly for indoor cultivation in colder climates. As such they have an important place in the floriculture trade for sale as cut flowers or potted plants. There is some confusion over the names Amaryllis and Hippeastrum, one result of which is that the common name amaryllis is mainly used for cultivars of the genus Hippeastrum (often grown indoors). By contrast, the genus Amaryllis refers to bulbous species from South Africa (usually grown outdoors).