 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) extracted 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
 Spiny leaves of brittle naiad aquatic plant (Najas marina) from 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) submerged in 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
 Dying aquatic plant of brittle naiad (Najas marina) in Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 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
 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
 Habitat of aquatic plant Brittle naiad (Najas marina) in a pond near the entrance of Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Narrow leaves of beaked tasselweed (widgeongrass, Ruppia maritima) taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Old plywood mosque near Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Plywood mosque near Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Beaked tasselweed (widgeongrass, Ruppia maritima) taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Clump of beaked tasselweed (widgeongrass, Ruppia maritima) taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Roots of beaked tasselweed (widgeongrass, Ruppia maritima) taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Beaked tasselweed (widgeongrass, Ruppia maritima) with roots extracted from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Mihrab (semicircular prayer niche) in qibla wall inside old plywood mosque near Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Evans bluetail damselfly (Ischnura evansii) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
 Birdwatching with QNHG (Qatar Natural History Group) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
 Watching birds with QNHG (Qatar Natural History Group) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
 Bright mature male broad scarlet dragonfly (Crocothemis erythraea) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
 Broad scarlet dragonfly (Crocothemis erythraea) in obelisk position near a service road of Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
 Female broad scarlet dragonfly (Crocothemis erythraea) holding its abdomen up (obelisk position) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
 Group of birdwatchers from QNHG (Qatar Natural History Group) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
 Group of birdwatchers from QNHG (Qatar Natural History Group) on a service road near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
 Aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Stand of aquatic plant Widgeon Grass (Ruppia maritima) in Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Dense stand of aquatic plant Widgeon Grass (Ruppia maritima) in Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Cluster of fruits of aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Fruits and a flower of aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Close up of pea shaped fruits of aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Membranous sheath with a flower(?) of aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Close up of membranous sheath of aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Close up of pea shaped fruits (drupelets) of aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Close up of membranous sheath with coiled stalk (peduncle) bearing flowers and fruits of aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Flowers of mangrove tree (Avicennia marina) on dark background near Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, April 24, 2015
 Deer Island Light (modern tower) and Deer Island Sewage Treatment Plant (Boston Harbor Wastewater Treatment Plant) in Boston Harbor, view from a boat. Boston, Massachusetts, November 11, 2004
 Dried caked mud of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Old plywood mosque near Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Texture of dried caked mud of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Dried Abu Nakhla jail ponds (sewage lagoons), with caked mud at the bottom. Qatar, April 18, 2015
 Shrinking water reservoir of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Dried caked mud on the bottom of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 A road near a wastewater treatment plant in Lick Creek Park. College Station, Texas, August 4, 2022
 Dried caked mud covering the bottom of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Widgeon Grass (Ruppia maritima) in Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Widgeon Grass (Ruppia maritima) with flowers in Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Plant of Linaria albifrons on dark background on roadside south from Ras Laffan. North-eastern Qatar, February 19, 2016
 Plant of Linaria albifrons on dark background taken from a roadside south from Ras Laffan. North-eastern Qatar, February 19, 2016
 Grass Sporobolus spicatus growing on dried bottom of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Blue dome and traces of a chandelier in a plywood mosque near Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Twig of Salsola drummondii with clavate and club-shaped leaves on dark background taken from roadside in Abu Samra, near the border. Southern Qatar, April 25, 2015
 Close up of Salsola drummondii with clavate and club-shaped variation of leaves on dark background taken from roadside in Abu Samra, near the border. Southern Qatar, April 25, 2015
 Drying Abu Nakhla jail ponds (sewage lagoons), April 18, 2015
 Leaf of celery (Apium graveolens) on dark background taken from Al Khair Street in Lejbailat area. Doha, Qatar, May 10, 2015
 Seeds on dark background of pink tamarisk (Tamarix aucheriana) taken from swampy area behind Al Khor Hospital. Qatar, February 14, 2015
 Finger grass (Chloris virgata) on dark background taken from Al Sham Street in Onaiza area. Doha, Qatar, April 20, 2015
 Seeds and flowers of pink tamarisk (Tamarix aucheriana) on dark background taken from swampy area behind Al Khor Hospital. Qatar, February 14, 2015
 Bell weed (Ruellia prostrata) on dark background taken from Al Bidda Street near crossing with Al Adaid in West Bay. Doha, Qatar, April 28, 2015
 Blue flower of cowpea (Vigna unguiculata) on dark background taken from Al Wosail Street in Onaiza area. Doha, Qatar, April 27, 2015
 Grass spikelet of Asian crabgrass (Digitaria bicornis) on dark background taken near Al Sham Street in Onaiza area. Doha, Qatar, June 3, 2015
 Indian love grass (Eragrostis pilosa) on dark background taken from a park at Al Intisar Street near a corner with Onaiza. Doha, Qatar, December 3, 2015
 Snake tongue grass (Corymbose Hedyotis, Oldenlandia corymbosa) on dark background taken from Al Sanaa Street in Al Jebailat area near West Bay. Doha, Qatar, May 7, 2015
 Dark leaves of a plant Polycarpon succulentum on dunes south from Fuwairit. Northern Qatar, February 9, 2016
 Flowers of moong bean (Vigna radiata)(?) with dark background taken from area of Al Furqan Street in Al Luqta area. Doha, Qatar, April 16, 2015
 Grass Dactyloctenium aristatum (local name Najm) on dark background taken from Al Istiqlal Street Street in Onaiza area. Doha, Qatar, April 30, 2015
 Flower of velvetleaf (Abutilon pannosum var. figarianum) on dark background taken from extension of Al Kharais Street behind gas station on Al Sham Street in West Bay. Doha, Qatar, April 4, 2015
 Close up of a flower of velvetleaf (Abutilon pannosum var. figarianum) on dark background taken from extension of Al Kharais Street behind gas station on Al Sham Street in West Bay. Doha, Qatar, April 4, 2015
 Flowers of mangrove tree (Avicennia marina) on white background near Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, April 24, 2015
 Sewage line right of way with a water treatment plant in background in Lick Creek Park. College Station, Texas, October 17, 2007
 Sand Spurry (Spergularia diandra, Arenaria diandra, Spergula diandra, local name degaygah) on white background in a roadside depression east from Al Jebail water treatment plant. Al Khor, Qatar, January 23, 2016
 Fruits of Khozama plant (Horwoodia dicksoniae) on dark background taken from a border of Al Defai Farm in Lebwairda area north from Al Khor. Qatar, April 16, 2016
 Seeds of wild gourd (Cucumis prophetarum) on dark background taken from Umm Houtah in Southern Qatar, January 16, 2015
 Sand Spurry (Spergularia diandra, Arenaria diandra, Spergula diandra, local name degaygah) with flowers on white background in a roadside depression east from Al Jebail water treatment plant. Al Khor, Qatar, January 23, 2016
 Some slender plant of aster(?) family on dark background on a periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 22, 2016
 Fruits of Ashwagandha plant (Withania somnifera) on white background taken from Al Muhandiseen Street in Al Lejbailat area. Doha, Qatar, February 25, 2016
 Inflorescence of pan dropseed (Sporobolus ioclados) east from Al Jebail water treatment plant. Al Khor, Qatar, December 20, 2015
 Plant of four-leaved allseed (Polycarpon tetraphyllum) on white background taken from United Nations Street in Onaiza area. Doha, Qatar, February 2, 2016
 Purple inflorescence of pan dropseed (Sporobolus ioclados) east from Al Jebail water treatment plant. Al Khor, Qatar, December 20, 2015
 Sedge (Cyperus conglomeratus) in a roadside depression east from Al Jebail water treatment plant. Al Khor, Qatar, December 20, 2015
 Pink flowers of tamarisk (Tamarix aucheriana) east from Al Jebail water treatment plant. Al Khor, Qatar, December 20, 2015
 Tussock forming grass pan dropseed (Sporobolus ioclados) east from Al Jebail water treatment plant. Al Khor, Qatar, December 20, 2015
 Green and white panicle of pan dropseed (Sporobolus ioclados) east from Al Jebail water treatment plant. Al Khor, Qatar, December 20, 2015
 Close up of a purple inflorescence of pan dropseed (Sporobolus ioclados) east from Al Jebail water treatment plant. Al Khor, Qatar, December 20, 2015
 Blooming Linaria albifrons on dark background taken from a roadside south from Ras Laffan. North-eastern Qatar, February 19, 2016
 Spikelets of grass Chrysopogon plumulosus on dark background near Sawda Natheel Road. Southern Qatar, February 26, 2016
 Flowers of desert thorn (Lycium shawii, local name Awsaj) east from Al Jebail water treatment plant. Al Khor, Qatar, December 20, 2015
 Dry seeds of Medicago laciniata carpeting the ground of a roadside depression east from Al Jebail water treatment plant. Al Khor, Qatar, December 20, 2015
 Tussock of grass pan dropseed (Sporobolus ioclados) in a roadside depression east from Al Jebail water treatment plant. Al Khor, Qatar, December 20, 2015
 Leaves of aquatic plant in Antique Rose Emporium. Independence, Texas, July 27, 2013
 White clover (Trifolium repens) on dark background taken from Mareb Street in Onaiza area. Doha, Qatar, April 18, 2016
 Hard vetch (Vicia monantha) on dark background taken from Ibn Nusaih Street in Onaiza area. Doha, Qatar, January 26, 2016
 Lamb s quarters (Chenopodium album) on dark background taken from Ibn Nusaih Street in Onaiza area. Doha, Qatar, March 17, 2016
 Mediterranean amaranth (short-tepalled pigweed, Amaranthus graecizans) on dark background taken from Onaiza area. Doha, Qatar, March 24, 2016
 Hard vetch (Vicia monantha) with flowers on dark background taken from Ibn Nusaih Street in Onaiza area. Doha, Qatar, January 26, 2016
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