''Tripterocalyx'' is a small genus of

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...

s in the

four o'clock family Nyctaginaceae, the four o'clock family, is a family of around 33 genera and 290 species of flowering plants, widely distributed in tropical and subtropical regions, with a few representatives in temperate regions. The family has a unique fruit t ...

, Nyctaginaceae. It contains four species formerly included in the closely related genus ''

Abronia ''Abronia'' may refer to: * Abronia (gens), a Roman family of the Augustan age * ''Abronia'' (lizard), a genus of animals commonly known as arboreal alligator lizards * ''Abronia'' (plant), a genus of plants commonly known as sand-verbenas {{disam ...

'', the sand-verbenas.Flora of North America
/ref> 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 ''Tripterocalyx crux-maltae'' is a species of flowering plant in the four o'clock family known by the common names Lassen sandverbena and Kellogg's sand-verbena. Distribution It is native to a section of the Great Basin straddling the far north ...

'' – Kellogg's sand-verbena *'' Tripterocalyx micranthus'' – small-flowered sand-verbena *''

Tripterocalyx wootonii ''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. These plants are native to North America, es ...

'' (sometimes treated as a variety of ''T. carneus'') – Wooton's sandpuffs

References

Nyctaginaceae Caryophyllales genera {{Caryophyllales-stub