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. 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 Hunz. & A.A.Cocucci Trianthema ceratosepalum Volkens & Irmsch. Trianthema clavatum H.E.K.Hartmann & Liede Trianthema compactum C.T.White )Trianthema corallicola H.E.K.Hartmann & Liede Trianthema corymbosum H.E.K.Hartmann & Liede Trianthema crystallinum Vahl Trianthema cussackianum F.Muell. Trianthema cypseleoides Benth. Trianthema glossostigma F.Muell. Trianthema hecatandrum Wingf. & M.F.Newman Trianthema hereroense Schinz Trianthema kimberleyi Bittrich & K.M.Jenssen Trianthema megaspermum A.M.Prescott Trianthema mozambiquense H.E.K.Hartmann & Liede Trianthema oxycalyptrum F.Muell. Trianthema pakistanense H.E.K.Hartmann & Liede Trianthema parvifolium E.Mey. ex Sond. Trianthema patellitectum A.M.Prescott Trianthema pilosum F.Muell. Trianthema portulacastrum L. – Desert horse purslane Trianthema rhynchocalyptrum F.Muell. Trianthema salsoloides Fenzl ex Oliv. )Trianthema sanguineum Volkens & Irmsch. Trianthema sheilae A.G.Mill. & J.Nyberg Trianthema triquetrum Willd. ex Spreng. Trianthema turgidifolium F.Muell. Trianthema ufoense H.E.K.Hartmann & Liede Trianthema vleiense H.E.K.Hartmann & Liede