Home Page > Picture Archives >  Flora of Qatar > Aizoaceae > Trianthema portulacastrum

Trianthema portulacastrum L.

Synonyms

Portulacastrum monogynum, Portulaca toston, Tetragonia chisimajensis, Trianthema flexuosum, Trianthema hydaspicum, Trianthema littoralis, Trianthema monogyna, Trianthema obcordata, Trianthema procumbens

Common names

Horse purslane, black pigweed

My notes

It was seen only in Irkhaya (Irkaya) Farms.

Extract from Wikipedia article

Trianthema portulacastrum is a species of flowering plant in the ice plant family known by the common names desert horse purslane, black pigweed, and giant pigweed. It is native to areas of several continents, including Africa and North and South America, and present as an introduced species in many other areas. It grows in a wide variety of habitat types and it can easily take hold in disturbed areas and cultivated land as a weed. It is an annual herb forming a prostrate mat or clump with stems up to a meter long. It is green to red in color, hairless except for small lines of hairs near the leaves, and fleshy. The leaves have small round or oval blades up to 4 centimeters long borne on short petioles. Solitary flowers occur in leaf axils. The flower lacks petals but has purple, petallike sepals. The fruit is a curved, cylindrical capsule emerging from the stem. It is up to half a centimeter long and has two erect, pointed wings on top, where the capsule opens.[+]

LinkBlack pigweed (Trianthema portulacastrum) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
Location on mapsUnnamed Road, Qatar
LinkProstrate plant of black pigweed (Trianthema portulacastrum) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
Location on mapsSalwa Road, Qatar
LinkBlack pigweed (Trianthema portulacastrum) with a flower on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
Location on mapsUnnamed Road, Qatar
LinkFlower of black pigweed (Trianthema portulacastrum) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
Location on mapsUnnamed Road, Qatar
LinkBlooming black pigweed (Trianthema portulacastrum) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
Location on mapsUnnamed Road, Qatar
LinkBlack pigweed (Trianthema portulacastrum) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, August 21, 2015
Location on mapsخط الوكير، Qatar
LinkBlack pigweed (Trianthema portulacastrum) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, October 9, 2015
Location on mapsUnnamed Road, Qatar
LinkBlack pigweed (Trianthema portulacastrum) with unopened flower on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, October 9, 2015
Location on mapsخط الوكير، Qatar
LinkClose up of leaves of black pigweed (Trianthema portulacastrum) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, October 9, 2015
Location on mapsUnnamed Road, Qatar
LinkClose up of black pigweed (Trianthema portulacastrum) with a flower on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, October 9, 2015
Location on mapsUnnamed Road, Qatar
LinkBlack pigweed (Trianthema portulacastrum) with a flower on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, October 9, 2015
Location on mapsخط الوكير، Qatar

Links

Outside links

How the web page was created

Acknowledgements

QNHG (Qatar Natural History Group) and associated people, for a possibility to participate in their field excursions and to learn about local nature.