 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
 Flower of puncturevine (Caltrop, Tribulus terrestris, Tribulus lanuginosus, local name hasak) on a 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
 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
 Puncturevine (caltrop, Tribulus terrestris) on a sidewalk of Al Diwan Street. Doha, Qatar, March 28, 2014
 Puncturevine (Caltrop, Tribulus terrestris) in a silty depression on roadside of a road to Zubara, area of Al Magdah farms. Northern Qatar, October 24, 2015
 Puncturevine (Caltrop, Tribulus terrestris) on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 Small yellow flower of puncturevine (Caltrop, Tribulus terrestris) in Old Baylor Park. Independence, Texas, September 6, 2009
 Puncturevine (Caltrop, Tribulus terrestris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 7, 2010
 Puncturevine (Caltrop, Tribulus terrestris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 27, 2013
 Puncturevine (Caltrop, Tribulus terrestris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2019
 Puncturevine (Caltrop, Tribulus terrestris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 10, 2019
 Puncturevine (Caltrop, Tribulus terrestris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 1, 2012
 Flower of puncturevine (Caltrop, Tribulus terrestris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2010
 Caltrop flower (puncturevine, Tribulus terrestris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Puncturevine (Caltrop, Tribulus terrestris) on Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 28, 2014
 Puncturevine (Caltrop, Tribulus terrestris) with a yellow flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 1, 2012
 Puncturevine (Caltrop, Tribulus terrestris) on a path in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 1, 2014
 Fruit of Puncturevine (Caltrop, Tribulus terrestris) on a path in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 1, 2014
 Close up of Puncturevine (Caltrop, Tribulus terrestris) on a path in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 1, 2014
 Blooming Rosin Weed (Cressa cretica, local names Senebiera, didyma, nedaiwa) in Al Luqta area. Doha, Qatar, March 13, 2015
 Umbrella papyrus (Cyperus alternifolius) on Sahat Al Luqta Street in Al Luqta area. Doha, Qatar, March 18, 2015
 Head of umbrella papyrus (Cyperus alternifolius) taken from Sahat Al Luqta Street in Al Luqta area. Doha, Qatar, March 18, 2015
 Close up of umbrella papyrus (Cyperus alternifolius) taken from Sahat Al Luqta Street in Al Luqta area. Doha, Qatar, March 18, 2015
 Plant of umbrella papyrus (Cyperus alternifolius) taken from Sahat Al Luqta Street in Al Luqta area. Doha, Qatar, March 18, 2015
 Seed head of umbrella papyrus (Cyperus alternifolius) taken from Sahat Al Luqta Street in Al Luqta area. Doha, Qatar, March 18, 2015
 Blooming Rosin Weed (Cressa cretica, local names Senebiera, didyma, nedaiwa) with stone fence background in Al Luqta area. Doha, Qatar, March 13, 2015
 Prickly bur (Datura innoxia) on Sahat Al Luqta Street near crossing with Al Abeer Street in Al Luqta area. Doha, Qatar, March 18, 2015
 Carica papaya near Sahat Al Luqta Street in Al Luqta area. Doha, Qatar, April 16, 2015
 Sorghum bicolor in Al Luqta area. Doha, Qatar, March 13, 2015
 Plant of Aerva javanica in Al Luqta area. Doha, Qatar, March 13, 2015
 Flowers of Sorghum bicolor in Al Luqta area. Doha, Qatar, March 13, 2015
 Coriander (Coriandrum sativum) taken from Al Luqta area. Doha, Qatar, March 13, 2015
 Dill (Anethum graveolens) taken from Al Luqta area. Doha, Qatar, March 13, 2015
 River Red Gum (Eucalyptus camaldulensis) in Al Luqta area. Doha, Qatar, March 13, 2015
 Prickly goldenfleece (Urospermum picroides) in Al Luqta area. Doha, Qatar, March 13, 2015
 Large plant of Aerva javanica in Al Luqta area. Doha, Qatar, March 13, 2015
 Bladder dock (Rumex vesicarius) taken from Al Luqta area. Doha, Qatar, March 13, 2015
 Flower of prickly goldenfleece (Urospermum picroides) taken from Al Luqta area. Doha, Qatar, March 13, 2015
 Coriander (Coriandrum sativum) with white background taken from Al Luqta area. Doha, Qatar, March 13, 2015
 Plant of prickly goldenfleece (Urospermum picroides) taken from Al Luqta area. Doha, Qatar, March 13, 2015
 Cutleaf Heron s bill (Erodium laciniatum) taken from Al Luqta area. Doha, Qatar, March 13, 2015
 Flower of wild cotton (Gossypium herbaceum) taken from Al Luqta area. Doha, Qatar, March 13, 2015
 Leadtree (jumbay, Leucaena leucocephala) with fruits in Al Luqta area. Doha, Qatar, March 13, 2015
 Flower of wild cotton (Gossypium herbaceum) in Al Luqta area. Doha, Qatar, March 13, 2015
 Bee on flowers of a Ghaf tree (Prosopis cineraria) in Al Luqta area. Doha, Qatar, March 13, 2015
 Large grains in globose spikelets of Sorghum bicolor in Al Luqta area. Doha, Qatar, March 13, 2015
 Buffelgrass (African foxtail grass, Cenchrus pennisetiformis) in Al Luqta area. Doha, Qatar, March 13, 2015
 Yellow flowers of Ghaf tree (Prosopis cineraria) taken from Al Luqta area. Doha, Qatar, March 13, 2015
 Grass spikelet of Sorghum halepense(?) taken from a place with water leakage in Al Luqta area. Doha, Qatar, March 13, 2015
 Close up of a maroon flower of wild cotton (Gossypium herbaceum) in Al Luqta area. Doha, Qatar, March 13, 2015
 Large toothbrush tree (Salvadora persica) on Al Nour Street in Al Luqta area. Doha, Qatar, March 13, 2015
 Buffelgrass (African foxtail grass, Cenchrus pennisetiformis) with a stone fence background in Al Luqta area. Doha, Qatar, March 13, 2015
 Flower heads of prickly goldenfleece (Urospermum picroides) taken from a place with water leakage in Al Luqta area. Doha, Qatar, March 13, 2015
 Carica papaya plant near Sahat Al Luqta Street in Al Luqta area. Doha, Qatar, April 19, 2016
 Flowers of fine-leaf desert cassia (Cassia nemophila, Senna artemisioides subsp. filifolia) taken from Al Luqta area. Doha, Qatar, March 13, 2015
 Fodder radish (Raphanus sativus, local names ruweid, fijil) on Al Furqan Street in Al Luqta area. Doha, Qatar, February 24, 2016
 Blooming fodder radish (Raphanus sativus, local names ruweid, fijil) on Al Furqan Street in Al Luqta area. Doha, Qatar, February 24, 2016
 Aerva javanica (local names towayim, tarfa, tirf, Tuwaim) near a wall of Barzan 2 compound in Al Luqta area. Doha, Qatar, January 27, 2016
 Flowers of fodder radish (Raphanus sativus, local names ruweid, fijil) on Al Furqan Street in Al Luqta area. Doha, Qatar, February 24, 2016
 Rosin Weed (Cressa cretica, local names Senebiera, didyma, nedaiwa) on Al Furqan Street in Al Luqta area. Doha, Qatar, January 14, 2016
 Flowers of moong bean (Vigna radiata)(?) taken from area of Al Furqan Street in Al Luqta area. Doha, Qatar, April 16, 2015
 Branch with needle-shaped leaves of fine-leaf desert cassia (Cassia nemophila, Senna artemisioides subsp. filifolia) taken from Al Luqta area. Doha, Qatar, March 13, 2015
 Blooming rosin Weed (Cressa cretica, local names Senebiera, didyma, nedaiwa) on Al Furqan Street in Al Luqta area. Doha, Qatar, January 14, 2016
 Inflorescence of fodder radish (Raphanus sativus, local names ruweid, fijil) with aphids on Al Furqan Street in Al Luqta area. Doha, Qatar, February 24, 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
 Rosin Weed (Cressa cretica, local names Senebiera, didyma, nedaiwa) on white background on Al Furqan Street in Al Luqta area. Doha, Qatar, January 14, 2016
 Masses of plants of rosin Weed (Cressa cretica, local names Senebiera, didyma, nedaiwa) on Al Furqan Street in Al Luqta area. Doha, Qatar, January 14, 2016
 Plant of Carica papaya on Al Abeer Street in Al Luqta area. Doha, Qatar, April 16, 2015
 Bush of Ochradenus baccatus on Al Rayhan Street in Al Luqta area. Doha, Qatar, April 16, 2015
 Ghaf tree (Prosopis cineraria) on Al Furqan Street in Al Luqta area. Doha, Qatar, April 16, 2015
 Carica papaya with flowers and fruits on Al Abeer Street in Al Luqta area. Doha, Qatar, April 16, 2015
 Senna with needle-shaped leaves (Fine-leaf desert cassia, Cassia nemophila, Senna artemisioides subsp. filifolia) in Al Luqta area. Doha, Qatar, March 13, 2015
 Blooming ghaf tree (Prosopis cineraria) on Al Furqan Street in Al Luqta area. Doha, Qatar, April 16, 2015
 Fruits of white leadtree (jumbay, Leucaena leucocephala) on Al Furqan Street in Al Luqta area. Doha, Qatar, April 16, 2015
 Grass Dichanthium foveolatum taken from Makkah Street in Al Luqta area. Doha, Qatar, March 15, 2016
 Uprooted palm trees on Makkah Street in Al Luqta area. Doha, Qatar, March 15, 2016
 Fodder radish (Raphanus sativus, local names ruweid, fijil) on Ammouriya Street in Onaiza area. Doha, Qatar, March 29, 2015
 Southern sandbur grass (Cenchrus echinatus) taken from Makkah Street in Al Luqta area. Doha, Qatar, March 15, 2016
 Flowers of fodder radish (Raphanus sativus, local names ruweid, fijil) on Ammouriya Street in Onaiza area. Doha, Qatar, March 29, 2015
 Plant of fodder radish (Raphanus sativus, local names ruweid, fijil) on Ammouriya Street in Onaiza area. Doha, Qatar, March 29, 2015
 Medicago laciniata (Medicago polymorpha, Medicago aschersoniana, local names nafal abu hasak, hassak, jet barri) near Dukhan Road. Western Qatar, March 1, 2014
 African foxtail grass (buffelgrass, Cenchrus pennisetiformis)(?) taken from Makkah Street in Al Luqta area. Doha, Qatar, March 15, 2016
 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
 Orange nightshade (Solanum luteum or may be S. villosum) in a shady spot on Al Furqan Street in Al Luqta area. Doha, Qatar, March 11, 2016
 Medicago laciniata (Medicago polymorpha, Medicago aschersoniana, local names nafal abu hasak, hassak, jet barri) and a torpedo seed of Erodium near Dukhan Road. Western Qatar, March 1, 2014
 Fruits of orange nightshade (Solanum luteum or may be S. villosum) in a shady spot on Al Furqan Street in Al Luqta area. Doha, Qatar, March 11, 2016
 Blooming orange nightshade (Solanum luteum or may be S. villosum) in a shady spot on Al Furqan Street in Al Luqta area. Doha, Qatar, March 11, 2016
 Medicago laciniata (Medicago polymorpha, Medicago aschersoniana, local names nafal abu hasak, hassak, jet barri) and a stray torpedo seed of Erodium near Dukhan Road. Western Qatar, March 1, 2014
 Medicago laciniata (Medicago polymorpha, Medicago aschersoniana, local names nafal abu hasak, hassak, jet barri) and a torpedo seed of Erodium (at the bottom) near Dukhan Road. Western Qatar, March 1, 2014
 Blooming bladder dock (Rumex vesicarius, local name Hummeid) grown on side of Al Luqta Street, near to Education City. Doha, Qatar, April 11, 2014
 Bushes of Ochradenus baccatus (Pearl Plant, Taily Weed, local name Gurdhi or qurDi) near Al Luqta Street, opposite to Education City. Doha, Qatar, April 11, 2014
 Flowers of Ochradenus baccatus (Pearl Plant, Taily Weed, local name Gurdhi or qurDi) near Al Luqta Street, opposite to Education City. Doha, Qatar, April 11, 2014
 Knucklehead Weed (Sclerocephalus arabicus, Paronychia sclerocephala, local names hasak, thereisa) in sand near Trainah in southern Qatar, February 14, 2014
 Knucklehead Weed (Sclerocephalus arabicus, Paronychia sclerocephala, local names hasak, thereisa) near a road to Sawda Natheel in southern Qatar, February 11, 2014
 Mat of Knucklehead Weed (Sclerocephalus arabicus, Paronychia sclerocephala, local names hasak, thereisa) in roadside depression near Dukhan Highway. Qatar, January 15, 2016
 Knucklehead Weed (Sclerocephalus arabicus, Paronychia sclerocephala, local names hasak, thereisa) on roadside of Dukhan Highway near Al Shakhaniya. Qatar, January 15, 2016
 Knucklehead Weed (Sclerocephalus arabicus, Paronychia sclerocephala, local names hasak, thereisa) near a road to Saudi Arabia in southern Qatar, February 11, 2014
|