Coriander (Coriandrum sativum) in a roadside vegetable garden near Harrarah in southern Qatar, February 14, 2014
Lepidium aucheri in a roadside depression of Abu Samra Road in southern Qatar, February 11, 2014
Fruits of Swine cress (Lepidium didymum) near Al Bidda Park. Doha, Qatar, March 7, 2014
Shoot of Swine cress (Lepidium didymum) near Al Bidda Park. Doha, Qatar, March 7, 2014
Swine cress (Lepidium didymum) on a lawn near Al Bidda Park. Doha, Qatar, March 7, 2014
Pepper-grass (Lepidium aucheri) on roadside of Salwa Road in south-western Qatar, February 21, 2014
Leaf of Swine cress (Lepidium didymum) taken from gardens of Sheraton Hotel in West Bay. Doha, Qatar, January 26, 2016
Icy rosettes of lesser swine-cress (Lepidium didymum) on a golf course on campus of Texas A and M University. College Station, Texas, February 14, 2021
Buds of lesser swine-cress (Lepidium didymum) on a golf course on campus of Texas A and M University. College Station, Texas, February 14, 2021
Rosette of lesser swine-cress (Lepidium didymum) on a golf course on campus of Texas A and M University. College Station, Texas, February 14, 2021
Prostrate shoots of lesser swine-cress (Lepidium didymum) on a golf course on campus of Texas A and M University. College Station, Texas, February 14, 2021
Seeds of Argentine peppercress (Lepidium bonariense) on roadside of Salwa Road in south-western Qatar, March 3, 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, 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
Some dry tumbleweed in a roadside depression of Abu Samra Road in southern Qatar, February 11, 2014
Morning glory (bindweed, Convolvulus arvensis(?)) on roadside in southern Qatar, February 14, 2014
Bladderdock (Rumex vesicarius, local name homeid) on roadside in southern Qatar, February 14, 2014
Alfalfa (Medicago sativa, local names jet, barseem) on roadside in southern Qatar, February 14, 2014
Blooming Spergula fallax (local name degaygah) in a roadside depression in southern Qatar, February 11, 2014
Blooming Spergula fallax (local name degaygah) on a roadside of Abu Samra Road in southern Qatar, February 11, 2014
Silver Nailroot (Paronychia arabica, Illecebrum arabicum) on a roadside of Abu Samra Road in southern Qatar, February 11, 2014
Silver Nailroot (Paronychia arabica, Illecebrum arabicum) in sand on a roadside of Abu Samra Road in southern Qatar, February 11, 2014
Flowers of Silver Nailroot (Paronychia arabica, Illecebrum arabicum) on a roadside of Abu Samra Road in southern Qatar, February 11, 2014
Blooming silver-sheath knotweed (Polygonum argyrocoleon) in a roadside depression of Abu Samra Road in southern Qatar, February 11, 2014
Yellow flowers of Ochradenus baccatus (local names qardi, Qurdi) on a roadside of Abu Samra Road in southern Qatar, February 11, 2014
Prickly Dock (Emex spinosa, Rumex spinosus, local names drs al ajooz, hanzab) on a roadside in southern Qatar, February 11, 2014
Prickly Dock (Emex spinosa, Rumex spinosus, local names drs al ajooz, hanzab) in sand on a roadside in southern Qatar, February 11, 2014
Blooming Virgin s Hand (Anastatica hierochuntica, local names kaf mariam, jefaiea) on a roadside of Abu Samra Road in southern Qatar, February 11, 2014
Seedling of a desert plant Tetraena qatarense (Zygophyllum qatarense) in sand on a roadside in southern Qatar, February 11, 2014
Field of rotten desert gourd (Citrullus colocynthis, local names handal, shary, Handhal) on a roadside of Abu Samra Road in southern Qatar, February 11, 2014
Rotten last year bitter gourd (Citrullus colocynthis, local names handal, shary, Handhal) on a roadside of Abu Samra Road in southern Qatar, February 11, 2014
Shoot of purslane-leaved aizoon (Aizoon canariense) in a roadside depression of Abu Samra Road in southern Qatar, February 11, 2014
Seedling of a desert plant Tetraena qatarense (Zygophyllum qatarense) on a roadside of Abu Samra Road 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
Blooming puncturevine (Caltrop, Tribulus terrestris, Tribulus lanuginosus, local name hasak) on a roadside in southern Qatar, February 11, 2014
Flower of puncturevine (Caltrop, Tribulus terrestris, Tribulus lanuginosus, local name hasak) on a roadside in southern Qatar, February 11, 2014
Flowers of Zilla spinosa (Bunias spinosa, local name shabram) on a roadside of Abu Samra Road in southern Qatar, February 11, 2014
Close up of flowers of Zilla spinosa (Bunias spinosa, local name shabram) on a roadside of Abu Samra Road in southern Qatar, February 11, 2014
Blooming bush of Zilla spinosa (Bunias spinosa, local name shabram) on a roadside of Abu Samra Road in southern Qatar, February 11, 2014
Desert plant purslane-leaved aizoon (Aizoon canariense) in a roadside depression of Abu Samra Road in southern Qatar, February 11, 2014
Dense flowers of Zilla spinosa (Bunias spinosa, local name shabram) on a roadside of Abu Samra Road 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
White flowers of Malva parviflora (Malva flexuosa, local name khubaiza) on a roadside of Abu Samra Road in southern Qatar, February 11, 2014
Plantain with large grain-like fruits (Plantago amplexicaulis, local names rablat al mistah, lesan al hamal) in a roadside depression of Abu Samra Road in southern Qatar, February 11, 2014
Large grain-like fruits of desert plantain Plantago amplexicaulis (local names rablat al mistah, lesan al hamal) in a roadside depression of Abu Samra Road in southern Qatar, February 11, 2014
Coriander (Coriandrum sativum) on Al Maha Street in Al Luqta area. Doha, Qatar, February 24, 2016
Blooming coriander (Coriandrum sativum) on Al Maha Street in Al Luqta area. Doha, Qatar, February 24, 2016
Flowers of coriander (Coriandrum sativum) on Al Maha Street in Al Luqta area. Doha, Qatar, February 24, 2016
Yellow flower of a desert plant Zygophyllum simplex (Tetraena simplex, local names Daa, harm, hureim) in a roadside depression of Abu Samra Road in southern Qatar, February 11, 2014
Close up of flowers of coriander (Coriandrum sativum) on Al Maha Street in Al Luqta area. Doha, Qatar, February 24, 2016
Violet flowers of Sand Spurry (Spergularia diandra, Arenaria diandra, Spergula diandra, local name degaygah) in a roadside depression of Abu Samra Road in southern Qatar, February 11, 2014
Blooming bush of Pulicaria undulata (Francoeruria crispa, Pulicaria crispa, local names jithjath, yethyas) on a roadside of Abu Samra Road in southern Qatar, February 11, 2014
Flowers of Senna italica (Cassia) on roadside near Trainah. Southern Qatar, November 7, 2014
Green seed pod of Senna italica (Cassia) on roadside near Trainah. Southern Qatar, November 7, 2014
Flower of desert gourd Citrullus colocynthis taken from roadside of Salwa Road. Southern Qatar, November 29, 2014
Sandy desert on roadside of a road to Sawda Natheel. Southern Qatar, February 5, 2016
Chrysopogon plumulosus on roadside of a road to Sawda Natheel. Southern Qatar, February 5, 2016
Argentine peppercress (Lepidium bonariense) in Irkhaya Farms. South-western Qatar, March 29, 2014
Flint stones in a desert on roadside of a road to Sawda Natheel. Southern Qatar, February 5, 2016
Acacia tortilis(?) in a desert on roadside of a road to Sawda Natheel. Southern Qatar, February 5, 2016
Leptadenia pyrotechnica in a desert on roadside of a road to Sawda Natheel. Southern Qatar, February 5, 2016
Limestone rocks in a desert on roadside of a road to Sawda Natheel. Southern Qatar, February 5, 2016
Rosette of green leaves of Argentine peppercress (Lepidium bonariense) near Dukhan Road. Western Qatar, March 1, 2014
Haplophyllum tuberculatum (local name Meseika) in a desert on roadside of a road to Sawda Natheel. Southern Qatar, February 5, 2016
Shoot of Haplophyllum tuberculatum (local name Meseika) in a desert on roadside of a road to Sawda Natheel. Southern Qatar, February 5, 2016
Black flint stones covering surface of a desert on roadside of a road to Sawda Natheel. Southern Qatar, February 5, 2016
Eremobium aegyptiacum in windblown sand on roadside of Salwa Road in area of Rawdat Ekdaim. Southern Qatar, February 26, 2016
Wire grass Ochthochloa compressa (local name Hamrah) on roadside of Sawda Natheel Road. Southern Qatar, February 26, 2016
Sedge (Cyperus conglomeratus) in windblown sand on roadside of Salwa Road in area of Rawdat Ekdaim. Southern Qatar, February 26, 2016
Blooming Eremobium aegyptiacum in windblown sand on roadside of Salwa Road in area of Rawdat Ekdaim. Southern Qatar, February 26, 2016
Seedling of bitter gourd (Citrullus colocynthis) on roadside of a road to Umm Hota Village, near Sawda Natheel. Southern Qatar, February 5, 2016
Wire grass Ochthochloa compressa (local name Hamrah) with spikes on roadside of Sawda Natheel Road. Southern Qatar, February 26, 2016
Wire grass Ochthochloa compressa (local name Hamrah) in sand on roadside of Sawda Natheel Road. Southern Qatar, February 26, 2016
Pebbles near Harrarah in southern Qatar, February 14, 2014
Argentine peppercress (Lepidium bonariense)(?) on Green Circles (center-pivot irrigation) in Irkhaya Farms. South-western Qatar, March 29, 2014
Spikes of sedge (Cyperus conglomeratus) in windblown sand on roadside of Salwa Road in area of Rawdat Ekdaim. Southern Qatar, February 26, 2016
Blooming sedge (Cyperus conglomeratus) in windblown sand on roadside of Salwa Road in area of Rawdat Ekdaim. Southern Qatar, February 26, 2016
Argentine peppercress (Lepidium bonariense) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, November 15, 2014
Desert pavement near Harrarah in southern Qatar, February 14, 2014
Small wadi near Harrarah in southern Qatar, February 14, 2014
Limestone escarpments near Harrarah in southern Qatar, February 14, 2014
Animal droppings near Harrarah in southern Qatar, February 14, 2014
Crested form (abnormal growth, forma cristata) of bindweed (Convolvulus pilosellifolius)(?) on roadside of a road to Sawda Natheel. Southern Qatar, February 5, 2016
Seedling of pepper-grass (Lepidium aucheri) in mud near a road to Zubara in area of Al Magdah farms. Northern Qatar, February 13, 2016
Shoots of pepper-grass (Lepidium aucheri) near a road to Zubara in area of Al Magdah farms. Northern Qatar, February 13, 2016
Seeds of Argentine peppercress (Lepidium bonariense) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, November 15, 2014
Ifloga spicata(?) in sand near Trainah in southern Qatar, February 14, 2014
Filago desertorum (local name quTeyna) in southern Qatar, February 14, 2014
Rosette of leaves in sand near Trainah in southern Qatar, February 14, 2014
Milkweed Glossonema varians near Harrarah in southern Qatar, February 14, 2014
Desert pavement by pebbles near Harrarah in southern Qatar, February 14, 2014
Seedling of pepper-grass (Lepidium aucheri) in silt near a road to Zubara in area of Al Magdah farms. Northern Qatar, February 13, 2016
Rosette of leaves of pepper-grass (Lepidium aucheri) in mud near a road to Zubara in area of Al Magdah farms. Northern Qatar, February 13, 2016
Blooming seedlings of pepper-grass (Lepidium aucheri) in mud near a road to Zubara in area of Al Magdah farms. Northern Qatar, February 13, 2016
Young plant of pepper-grass (Lepidium aucheri) in mud near a road to Zubara in area of Al Magdah farms. Northern Qatar, February 13, 2016
Coriander (Coriandrum sativum) taken from Al Luqta area. Doha, Qatar, March 13, 2015
Desert plant Launaea(?) in sand near Trainah in southern Qatar, February 14, 2014
Filago desertorum (local name quTeyna) with flowers in southern Qatar, February 14, 2014
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