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. The genus contains about 30 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.
Taxonomy
The genus Trianthema was first formally described in 1753 by Carl Linnaeus in Species Plantarum.
Species list
The following is a list of species of Trianthema according to Plants of the World Online as at October 2020:
- Trianthema argentinum <small>Hunz. & A.A.Cocucci</small> (Argentina)
- Trianthema ceratosepalum <small>Volkens & Irmsch.</small> (Kenya, Somalia, Tanzania)
- Trianthema clavatum <small>(J.M.Black) H.E.K.Hartmann & Liede</small> (South Australia)
- Trianthema compactum <small>C.T.White</small> (Queensland, Northern Territory))
- Trianthema corallicola <small>H.E.K.Hartmann & Liede</small> (Kenya, Somalia)
- Trianthema corymbosum <small>(E.Mey. ex Sond.) H.E.K.Hartmann & Liede</small> (South Africa)
- Trianthema crystallinum <small>(Forssk.) Vahl</small> (Bangladesh, Myanmar, Africa, Yemen, South Africa)
- Trianthema cussackianum <small>F.Muell.</small> (Western Australia)
- Trianthema cypseleoides <small>(Fenzl) Benth.</small> (New South Wales)
- Trianthema glossostigma <small>F.Muell.</small> (Northern Territory, Western Australia)
- Trianthema hecatandrum <small>Wingf. & M.F.Newman</small> (Venezuela)
- Trianthema hereroense <small>Schinz</small> (Namibia)
- Trianthema kimberleyi <small>Bittrich & K.M.Jenssen</small> (Western Australia)
- Trianthema megaspermum <small>A.M.Prescott</small> (Northern Territory)
- Trianthema mozambiquense <small>H.E.K.Hartmann & Liede</small> (Mozambique)
- Trianthema oxycalyptrum <small>F.Muell.</small> (Northern Territory, Western Australia)
- Trianthema pakistanense <small>H.E.K.Hartmann & Liede</small> (India, Pakistan)
- Trianthema parvifolium <small>E.Mey. ex Sond.</small> (Angola, Botswana, Cape Provinces, Free State, Namibia, Northern Provinces)
- Trianthema patellitectum <small>A.M.Prescott</small> (Northern Territory, Western Australia)
- Trianthema pilosum <small>F.Muell.</small> (Australia)
- Trianthema portulacastrum <small>L.</small> â Desert horse purslane (many continents)
- Trianthema rhynchocalyptrum <small>F.Muell.</small> (Northern Territory, Queensland)
- Trianthema salsoloides <small>Fenzl ex Oliv.</small> (Angola, Botswana, Cape Provinces, Free State, Kenya, Mozambique, Namibia, Northern Provinces, Sudan, Tanzania))
- Trianthema sanguineum <small>Volkens & Irmsch.</small> (Kenya, Tanzania)
- Trianthema sheilae <small>A.G.Mill. & J.Nyberg</small> (Eritea, Ethiopia, Saudi Arabia, Sudan, Yemen)
- Trianthema triquetrum <small>Willd. ex Spreng.</small> (Sahara to Sahel to South Africa, Indian subcontinent, to Thailand, North-east Jawa to Lesser Sunda Island, Australia)
- Trianthema turgidifolium <small>F.Muell.</small> (Northern Territory, Western Australia)
- Trianthema ufoense <small>H.E.K.Hartmann & Liede</small> (Northern Territory, Queensland, South Australia)
- Trianthema vleiense <small>H.E.K.Hartmann & Liede</small> (Cape Provinces, Free State, Northern Provinces)
References
External links