Amaryllis is a monotypic (consisting of only one species) genus of flowering plants containing the Belladonna Lily, popularly known as the Amaryllis belladonna lily. Amaryllis is a native of South and Central America and the Caribbean. The Hippeastrum genus of flowering bulbed plants is erroneously named as the Amaryllis or Christmas Amaryllis.
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Ornamental plants of Amaryllidaceae family are mistakenly called lilies. Amaryllidaceae species can be distinguished from members of the lily family (Liliaceae) by the anatomical placement of the ovary. Amaryllidaceae species are considered more advanced in evolution than the lilies. Sometimes the amaryllis family is included in the Liliaceae.
Amaryllis is cultivated for its beautiful and colorful flowers. The Amaryllis flower stem is erect, 5-60 cm tall, 1-3 cm in diameter, and hollow. The Amaryllis stem bears 2-5 large flowers at the apex, each flower 10-20 cm broad, with six brightly colored tepals (three outer sepals, three inner petals, with similar appearance to each other). A stunning amaryllis flower has dark red markings or different colors appearing on the stalks. Common size bulbs often produce two 20-22 inches stems. Huge Amaryllis flowers up to 6 inches across will also appear.