Hippeastrum

Hippeastrum is a genus of about 70–75 species and 600+ hybrids and cultivars of bulbous plants in the family Amaryllidaceae, native to tropical and subtropical regions of the Americas from Argentina north to Mexico and the Caribbean. Some species are grown for their large showy flowers. These plants are popularly but erroneously known as Amaryllis. Most of the so-called Amaryllis bulbs sold as 'ready to bloom for the holidays' belong to the allied genus Hippeastrum, despite being labeled as 'Amaryllis' by sellers and nurseries.