• WordNet 3.6
    • n nierembergia any of various plants of the genus Nierembergia having upturned bell-shaped flowers
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Century Dictionary and Cyclopedia
    • n nierembergia A genus of creeping or spreading herbs of the order Solanaceæ and the tribe Salpiglossideæ, known by its five exserted stamens attached to the apex of the slender corolla-tube. There are about 20 species, from South America to Texas. They have smooth undivided leaves and solitary pedicels bearing pale- violet or whitish flowers, often with an ornamental border. Various species are in garden cultivation, sometimes called cup-flower. Among them are N. gracilis and N. rivularis, the latter having white flowers with yellow center, used in the decoration of graves.
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In literature:

Nierembergia rivularis, 181. water, 181.
"Hardy Perennials and Old Fashioned Flowers" by John Wood

In news:

An achillea, a baptisia and a nierembergia are three of this year's Classic City Award-winning perennials in the Trial Garden at UGA.