Nierembergia(redirected from cupflower)
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Related to cupflower: nierembergia
a genus of plants of the family Solanaceae. They are annual or perennial grasses and, sometimes, subshrubs. The linear or lanceolate leaves are alternate. The solitary, five-parted flowers have funnel- or cup-shaped corollas and are white, light blue, lavender, or pink. There are more than 30 species, distributed primarily in Mexico and the subtropics of South America. Some large-flowered species that resemble petunias are used in floriculture.