Trianthema

Trianthema is a genus of flowering plants in the ice plant family, Aizoaceae. Members of the genus are annuals or perennials generally characterized by fleshy, opposite, unequal, smooth-margined leaves, a prostrate growth form, flowers with five perianth segments subtended by a pair of bracts, and a fruit with a winged lid. They are known commonly as horse purslanes.

Trianthema
Trianthema pilosa
Trianthema sp.
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Aizoaceae
Subfamily: Sesuvioideae
Genus: Trianthema
L.[1]
Species

About 20, see text.

Synonyms

Ancistrostigma Fenzl
Papularia Forssk.
Portulacastrum Juss. ex Medik.
Reme Adans.[1]

The genus contains about 20 described species growing in tropical and subtropical regions, especially Australia. One common species, Trianthema portulacastrum, desert horse purslane, is frequent as a weed in agricultural areas and is widely distributed.

Selected species

Formerly placed here
  • Zaleya decandra (L.) Burm.f. (as T. decandra L.)
  • Zaleya galericulata (Melville) H.Eichler (as T. galericulata Melville)
  • Zaleya pentandra (L.) C.Jeffrey (as T. pentandra L.)[3]

References
  1. "Genus: Trianthema L." Germplasm Resources Information Network. United States Department of Agriculture. 2009-06-09. Retrieved 2010-12-15.
  2. "Trianthema". Integrated Taxonomic Information System. Retrieved 2010-12-15.
  3. "GRIN Species Records of Trianthema". Germplasm Resources Information Network. United States Department of Agriculture. Retrieved 2010-12-15.

Media related to Trianthema at Wikimedia Commons Data related to Trianthema at Wikispecies

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