 Tribulus pentandrus near Abu Nahlah Road, south from Doha. Qatar, March 5, 2014
 Tribulus pentandrus with a flower taken from Abu Nahlah Road, south from Doha. Qatar, March 5, 2014
 Ochradenus aucheri with flowers near Abu Nahlah Road, south from Doha. Qatar, March 5, 2014
 Blooming bush of Ochradenus aucheri near Abu Nahlah Road, south from Doha. Qatar, March 5, 2014
 Fruit of Tribulus pentandrus(?) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
 Blooming Tribulus pentandrus(?) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
 Back lit flower of Tribulus pentandrus(?) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
 Seeds of Ochradenus aucheri near Abu Nahlah Road, south from Doha. Qatar, April 25, 2014
 Seed capsules of Ochradenus aucheri near Abu Nahlah Road, south from Doha. Qatar, April 25, 2014
 Puncturevine (Caltrop, Tribulus terrestris) on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Mat of Tribulus pentandrus(?) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, August 21, 2015
 Flower of puncturevine (Caltrop, Tribulus terrestris, Tribulus lanuginosus, local name hasak) in sand near a road to Saudi Arabia in southern Qatar, February 11, 2014
 Fruits of Zilla spinosa carpeting the ground on roadside of Salwa Road near Karaana, south-west from Doha. Qatar, April 23, 2014
 Al Udeid Air Base (Abu Nahlah Airport) near Mesayeed, south-west from Doha, view from a window of a car. Qatar, March 19, 2013
 Round dry seed capsules (fruits) of flax (Linum usitatissimum) on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Dry fruits (long-beaked siliqua) of field mustard (Brassica rapa) on roadside of Salwa Road near Karaana, south-west from Doha. Qatar, April 23, 2014
 Fruits of Zygophyllum simplex (Tetraena simplex, harm, hureim) on roadside of Salwa Road near Karaana, south-west from Doha. Qatar, April 23, 2014
 Puncturevine (caltrop, Tribulus terrestris) on a sidewalk of Al Diwan Street. Doha, Qatar, March 28, 2014
 Cornulaca aucheri (local name thalj) south from Abu Nahlah. Qatar, April 25, 2014
 Cornulaca aucheri with seeds of other plants south from Abu Nahlah. Qatar, April 25, 2014
 Fence of American military base Al Udeid Air Base (Abu Nahlah Airport) near Mesayeed, south-west from Doha, view from a window of a car. Qatar, March 2, 2012
 Sand-blast type of wind abrasion south from Abu Nahlah. Qatar, April 25, 2014
 Cornulaca aucheri (local name thalj) in sand south from Abu Nahlah. Qatar, April 25, 2014
 Thorns of Cornulaca aucheri (local name thalj) south from Abu Nahlah. Qatar, April 25, 2014
 Cornulaca aucheri (local name thalj) near a sand dune south from Abu Nahlah. Qatar, April 25, 2014
 Fruits of Tribulus macropterus(?) taken from a roadside of roadside of Salwa Road near Abu Nakhlah. Qatar, December 11, 2015
 Details of Cornulaca aucheri (local name thalj) near a sand dune south from Abu Nahlah. Qatar, April 25, 2014
 Cornulaca aucheri (local name thalj) in area of a sand dunes south from Abu Nahlah. Qatar, April 25, 2014
 Aeolian abrasion of limestone rocks (carved by drifting sand) south from Abu Nahlah. Qatar, April 25, 2014
 Flower of puncturevine (Caltrop, Tribulus terrestris, Tribulus lanuginosus, local name hasak) on a roadside in southern Qatar, February 11, 2014
 Blooming puncturevine (Caltrop, Tribulus terrestris, Tribulus lanuginosus, local name hasak) on a roadside in southern Qatar, February 11, 2014
 Puncturevine (Caltrop, Tribulus terrestris, Tribulus lanuginosus, local name hasak) in sand on roadside in southern Qatar, February 11, 2014
 Yellow flowers of puncturevine (Caltrop, Tribulus terrestris, Tribulus lanuginosus, local name hasak) on a roadside in southern Qatar, February 11, 2014
 Fruits of Tribulus macropterus var. arabicus growing on sand dunes near the spring in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, March 4, 2016
 Area of American military air base Al Udeid (Abu Nahlah Airport) near Mesayeed, south-west from Doha, view from a window of a car. Qatar, November 6, 2015
 Fruits of Swine cress (Lepidium didymum) near Al Bidda Park. Doha, Qatar, March 7, 2014
 Fruits (Kanar) of Christ s Thorn Jujube (sidra tree, Ziziphus spina-christi) in Irkhaya Farms. South-western Qatar, March 29, 2014
 Fallen fruits (Kanar) of Christ s Thorn Jujube (sidra tree, Ziziphus spina-christi) in Irkhaya Farms. South-western Qatar, March 29, 2014
 Tribulus macropterus with fruits taken from a roadside of Dukhan Highway in Ash-Shahaniyah. Qatar, December 4, 2015
 Close up of Tribulus macropterus with fruits taken from a roadside of Dukhan Highway in Ash-Shahaniyah. Qatar, December 4, 2015
 Shoot of Tribulus macropterus with a flower and fruits taken from a roadside of Dukhan Highway in Ash-Shahaniyah. Qatar, December 4, 2015
 Fruits of Tribulus macropterus detached from the plant taken from a roadside of Dukhan Highway in Ash-Shahaniyah. Qatar, December 4, 2015
 Tiny fruits (globose-ovoid capsules) of small asphodel lily Asphodelus tenuifolius. Harrarah, 40 miles south-west from Doha, Qatar, March 12, 2010
 Puncturevine (Caltrop, Tribulus terrestris, local name hasak) taken from Al Luqta area. Doha, Qatar, March 13, 2015
 Camels in a farm in dunes area south from Abu Nahlah. Qatar, June 23, 2015
 Camel farm in dunes area south from Abu Nahlah. Qatar, June 23, 2015
 Pulicaria undulata on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Bush of Ochradenus aucheri on a roadside near Abu Nahlah. Qatar, April 25, 2014
 Brown pentagonal stellate prostrate, depressed centrally fruits of a desert plant Aizoon canariense (local name Jafna). Harrarah, 40 miles south-west from Doha, Qatar, March 12, 2010
 Medicago laciniata (Medicago polymorpha, Medicago aschersoniana, local names nafal abu hasak, hassak, jet barri) with spherical fruits near Dukhan Road. Western Qatar, March 1, 2014
 Blooming Pulicaria undulata on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Flowers of Picris cyanocarpa on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Pulicaria undulata with flowers on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Peeling dried clay on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Vegetation in a depression on roadside of Salwa Road near Karaana, south-west from Doha. Qatar, April 23, 2014
 Desert plant Picris cyanocarpa(?) on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Suaeda aegyptiaca(?) with seeds on roadside of Salwa Road near Karaana, south-west from Doha. Qatar, April 23, 2014
 Aerva javanica with woolly flowers on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Bushy bindweed (Convolvulus prostratus) on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Taking pictures of plants on roadside of Salwa Road near Karaana, south-west from Doha. Qatar, April 23, 2014
 Blooming Cornulaca monacantha(?) on roadside of Salwa Road near Karaana, south-west from Doha. Qatar, April 23, 2014
 Sand-blast type of wind abrasion in dunes area south from Abu Nahlah. Qatar, June 23, 2015
 Bush of Ochradenus aucheri with seeds and some flowers on a roadside near Abu Nahlah. Qatar, April 25, 2014
 Argentine peppercress (Lepidium bonariense) on roadside depression of Salwa Road in south-western Qatar, March 3, 2014
 Seeds of Argentine peppercress (Lepidium bonariense) on roadside of Salwa Road in south-western Qatar, March 3, 2014
 Blooming Ribwort Plantain (Plantago lanceolata) on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Yellow flowers of Acacia ehrenbergiana on roadside of Salwa Road near Karaana, south-west from Doha. Qatar, April 23, 2014
 Ribwort Plantain (Plantago lanceolata) in sand on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Seeds of Argentine peppercress (Lepidium bonariense) on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Dry seeds of Zilla spinosa on the ground on roadside of Salwa Road near Karaana, south-west from Doha. Qatar, April 23, 2014
 Small white flowers of Acacia tortilis(?) on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Floccise woolly flowers of Aerva javanica on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Argentine peppercress (Lepidium bonariense) with seeds on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Bushy bindweed (Convolvulus prostratus) with white flowers on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Flower spike of Ribwort Plantain (Plantago lanceolata) on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Horsetail knotweed (Polygonum equisetiforme, local name qadab) in a depression near Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Airplane landing on American military base Al Udeid, view from dunes area south from Abu Nahlah. Qatar, June 23, 2015
 Dry plant of distaff-thistle (Atractylis carduus) with fluffy seeds on a roadside near Abu Nahlah. Qatar, April 25, 2014
 Dill (Anethum graveolens, local names ein jarada, shabat) on roadside of Salwa Road in south-western Qatar, March 3, 2014
 Oval seed pods of chickpea (Cicer arietinum) on roadside of Salwa Road near Karaana, south-west from Doha. Qatar, April 23, 2014
 Accumulation of sand around desert plants of Pulicaria and Zygophyllum on roadside of Salwa Road near Karaana, south-west from Doha. Qatar, April 23, 2014
 Parasitic plant Desert Hyacinth (Cistanche tubulosa, dhanoon, Tartuth) on a roadside near Abu Nahlah. Qatar, April 25, 2014
 Seeds of dill (Anethum graveolens, local names ein jarada, shabat) on roadside of Salwa Road in south-western Qatar, March 3, 2014
 Centaurea sinaica (local names birkan, murrar) with seeds on roadside of Salwa Road near Karaana, south-west from Doha. Qatar, April 23, 2014
 Almost dry Centaurea sinaica (local names birkan, murrar) with seeds on roadside of Salwa Road near Karaana, south-west from Doha. Qatar, April 23, 2014
 Aerva javanica (local names towayim, tarfa, tirf, Tuwaim) on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Arnebia hispidissima (Lithospermum hispidissimum, local names kahal, hasheshat al arnab) on a roadside near Abu Nahlah. Qatar, April 25, 2014
 Yellow desert plant Aizoon canariense with fruits near a road to Sawda Natheel in southern Qatar, February 11, 2014
 Alfalfa (lucerne, Medicago sativa, local names jet, barseem) in sand on roadside of Salwa Road near Karaana, south-west from Doha. Qatar, April 23, 2014
 Blooming Virgin s Hand (Anastatica hierochuntica, local names kaf mariam, jefaiea) on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Centaurea sinaica (local names birkan, murrar) with seeds and flowers on roadside of Salwa Road near Karaana, south-west from Doha. Qatar, April 23, 2014
 Virgin s Hand (Anastatica hierochuntica, local names kaf mariam, jefaiea) in sand on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Seed pods of milkweed Glossonema varians (local names jarawa, yarawa) on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Fruits of sidra tree (Ziziphus nummularia) taken from Rawdat Mahyoub on a road to Al Jumayliyah in north-western Qatar, December 6, 2014
 Desert Shaggy Mane mushrooms (Black Powderpuff, Podaxis pistillaris(?)) in sand on roadside of Salwa Road near Karaana, south-west from Doha. Qatar, April 23, 2014
 Seeds of Virgin s Hand (Anastatica hierochuntica, local names kaf mariam, jefaiea) in sand on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Desert Shaggy Mane mushroom (Black Powderpuff, Podaxis pistillaris(?)) in sand on roadside of Salwa Road near Karaana, south-west from Doha. Qatar, April 23, 2014
 Dissected fruits of desert gourd Citrullus colocynthis (bitter apples) taken from a road to Al Jumayliyah in north-western Qatar, December 6, 2014
 Fruits of sidra tree (Ziziphus nummularia) in Rawdat Mahyoub on roadside of a road to Al Jumayliyah in north-western Qatar, December 6, 2014
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