 Aquatic plant Brittle naiad (Najas marina) taken from a pond near the entrance of Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Close up of aquatic plant Brittle naiad (Najas marina) taken from a pond near the entrance of Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Dying aquatic plant of brittle naiad (Najas marina) in Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Brittle naiad aquatic plant (Najas marina) submerged in Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Brittle naiad aquatic plant (Najas marina) extracted from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Brittle naiad aquatic plant (Najas marina) with roots taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Brittle naiad aquatic plant (Najas marina) on dark background taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Spiny leaves of brittle naiad aquatic plant (Najas marina) from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Toothed leaves of brittle naiad aquatic plant (Najas marina) extracted from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Toothed leaves of brittle naiad aquatic plant (Najas marina) on dark background taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Toothed leaves of brittle naiad aquatic plant (Najas marina) with serrate edges taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Dried aquatic plants of brittle naiad (Najas marina) in caked mud of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Dried aquatic plants of brittle naiad (Najas marina) on muddy bottom of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Habitat of spiderling (Boerhavia erecta) near a pond on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
 Grass Pennisetum divisum taken from roadside near entrance of Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Cylindrical spikelet of grass Pennisetum divisum taken from roadside near entrance of Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Seedling of Salsola vermiculata (local name hamd) taken from area of ponds near the entrance of Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Overwintering plant of bushy bindweed (Convolvulus prostratus) on a periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Mat of spiderling (Boerhavia erecta) near a pond on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
 Spiderling (Boerhavia erecta) near a pond on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
 Fleshy shoot of spiderling (Boerhavia erecta) near a pond on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, May 1, 2015
 Shoots of spiderling (Boerhavia erecta) near a pond on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
 Spiderling (Boerhavia erecta) growing near a pond on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
 Shoot of spiderling (Boerhavia erecta) near a pond on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
 Close up of spiderling (Boerhavia erecta) near a pond on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
 Water morning glory (water spinach, water convolvulus, Ipomoea aquatica) near a water leakage site near sand processing plant near Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Dense growth of spiderling (Boerhavia erecta) near a pond on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
 Blooming spiderling (Boerhavia erecta) growing near a pond on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
 Shoot of spiderling (Boerhavia erecta) with flowers near a pond on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
 Shoot of spiderling (Boerhavia erecta) with fruits near a pond on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
 Shoots of spiderling (Boerhavia erecta) with flowers near a pond on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
 Close up of shoot of spiderling (Boerhavia erecta) near a pond on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
 White flowers of water morning glory (water spinach, water convolvulus, Ipomoea aquatica) near a water leakage site near sand processing plant near Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Plant of Atriplex leucoclada subsp. turcomanica(?) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, February 20, 2015
 Plant of Spanish Needle (Bidens pilosa) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, February 20, 2015
 Shoots of spiderling (Boerhavia erecta) on white background near a pond on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
 Plant of Spanish Needle (Bidens pilosa) on a field on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
 Green algae mats in a pond of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
 Inflorescence of Malabar sprangletop (brown beetle-grass, Leptochloa fusca) taken from area of lagoons north from entrance of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, December 18, 2015
 Pinkish plant of yellow sweet clover (Melilotus indicus) on a field on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, May 1, 2015
 Green algae mats on surface of a pond of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
 Spreading plant of water morning glory (water spinach, water convolvulus, Ipomoea aquatica) on a sewage pond near Irkhaya (Irkaya) Farms. Qatar, June 3, 2016
 Twig of bushy bindweed (Convolvulus prostratus), with silvery leaves, taken from Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Water pipes on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Various pebbles washed out on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Bush of alfalfa (lucerne, Medicago sativa, local names jet, barseem) near a pond on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
 Close up of inflorescence of Malabar sprangletop (brown beetle-grass, Leptochloa fusca) taken from area of lagoons north from entrance of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, December 18, 2015
 Multicolored pebbles washed out on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 River pebbles washed out on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Plant of clustered yellowtop (Flaveria trinervia) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, November 15, 2014
 Overwintering plant of bushy bindweed (Convolvulus prostratus) with silvery leaves on a periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, December 18, 2015
 Fresh leaves of desert heliotrope (turnsole, Heliotropium bacciferum) emerging from earth crack near a pond on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
 Spare tires for agricultural machinery on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Spare parts for agricultural equipment on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Straw walker and other agricultural equipment on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Case IH Tractor and other agricultural machinery on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Transmission equipment for agricultural machinery on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Straw walker of a combine harvester on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Combine harvester and other agricultural machinery on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Loose spare parts for agricultural machinery on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Wires and a metal ring for agricultural machinery on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Spare tire for a tractor and agricultural machinery on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Goosegrass (finger millet, Eleusine indica) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Small plant of Aegean dock (Rumex dentatus, local names Khillah, hommad) on a field on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
 Close up of a branch of a plant of bushy bindweed (Convolvulus prostratus) with soft silvery leaves on a periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, December 18, 2015
 Inflorescence of goosegrass (finger millet, Eleusine indica) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Close up of goosegrass (finger millet, Eleusine indica) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Spikelet of goosegrass (finger millet, Eleusine indica) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Goosegrass (finger millet, Eleusine indica) with a spikelet on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Star shaped flowers of Leptadenia pyrotechnica taken from the border of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Winter leaves of bushy bindweed (Convolvulus prostratus) on a periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Yellowish winter branches of bushy bindweed (Convolvulus prostratus) on a periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Rosette of silvery leaves of bushy bindweed (Convolvulus prostratus) on a periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Young, early season plant of Sahara mustard (Asian mustard, wild-turnip, Brassica tournefortii) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, December 18, 2015
 Spiderling (Boerhavia erecta) near a pond on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 22, 2016
 Small green caterpillar on Desert spurge (summer poinsettia, Euphorbia heterophylla) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Sandy island in a pond outside of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, March 5, 2016
 Wading birds in a pond outside of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, March 5, 2016
 Solitary plant of European seaheath (Frankenia pulverulenta) in area of sewage ponds near Irkhaya (Irkaya) Farms. Qatar, June 3, 2016
 Plant of rapeseed (Brassica napus)(?) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, February 26, 2016
 Some slender plant of aster(?) family taken from a periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 22, 2016
 Plant of Astragalus sieberi in a depression on a periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, June 3, 2016
 Plant of Lotus glinoides in a depression on a periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 22, 2016
 Some slender plant of aster(?) family on a periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 22, 2016
 Plant of Astragalus sieberi in a depression on a periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 22, 2016
 Southern cattail (Typha domingensis) near a pond outside of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, March 5, 2016
 Flowers of some slender plant of aster(?) family on a periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 22, 2016
 Branch of some slender plant of aster(?) family on a periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 22, 2016
 Plant of Lotus glinoides growing in a depression on a periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 22, 2016
 Plant of Astragalus sieberi on periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, March 5, 2016
 Stand of southern cattail (Typha domingensis) near a pond outside of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, March 5, 2016
 Amaranthus hybridus(?) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, October 9, 2015
 Mixed weeds on a field on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, May 1, 2015
 Mat of Tribulus pentandrus(?) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, August 21, 2015
 Waterwheels at sunrise on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, December 18, 2015
 Reichardia intermedia(?) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, February 20, 2015
 Morning dew on grasses on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, August 21, 2015
 Spurge (Euphorbia prostrata) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, May 1, 2015
 Water pipes on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, December 18, 2015
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