|N. angustifolia has narrow leaves 9 inches long and blooms in rich pink flowers in an umbel of 6 to 10 flowers on 2 foot stems. A genus of 30 species of bulbous plants, they have strap-like leaves arranged on 2 to 20 flowered umbels on an erect stem, usually about 2 feet. The flowers are a funnel shape, and wavy. Usually long lasting as a cut flower or as a pot plant, the flowers are loveliest under artificial light.