Tripterocalyx is a small genus of flowering plants in the four o'clock family, Nyctaginaceae. It contains four species formerly included in the closely related genus Abronia, the sand-verbenas.Flora of North America These plants are native to North America, especially the dry desert southwest of the United States. They bloom in heads of several colorful trumpet-shaped flowers. Sandpuffs or sand-verbenas are common names for plants in this genus.
Species There are four species in the genus Tripterocalyx: Tripterocalyx carneus – winged sandpuffs Tripterocalyx crux-maltae – Kellogg's sand-verbena Tripterocalyx micranthus – small-flowered sand-verbena Tripterocalyx wootonii (sometimes treated as a variety of T. carneus) – Wooton's sandpuffs
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