 Buffelgrass (African foxtail grass, Cenchrus pennisetiformis) on Al Muhandiseen Street near West Bay. Doha, Qatar, May 6, 2014
 Spikelet of buffelgrass (African foxtail grass, Cenchrus pennisetiformis) taken from Onaiza area near West Bay. Doha, Qatar, September 9, 2015
 Buffelgrass (African foxtail grass, Cenchrus pennisetiformis) on Al Sham Street in area of West Bay. Doha, Qatar, April 11, 2014
 Soft spike of buffelgrass (African foxtail grass, Cenchrus pennisetiformis) on Al Sham Street in area of West Bay. Doha, Qatar, April 11, 2014
 Close up of a soft spike of buffelgrass (African foxtail grass, Cenchrus pennisetiformis) on Al Sham Street in area of West Bay. Doha, Qatar, April 11, 2014
 Buffelgrass (African foxtail grass, Cenchrus pennisetiformis) taken from Onaiza area near West Bay. Doha, Qatar, September 9, 2015
 African foxtail grass (buffelgrass, Cenchrus pennisetiformis)(?) taken from Makkah Street in Al Luqta area. Doha, Qatar, March 15, 2016
 Buffelgrass (African foxtail grass, Cenchrus pennisetiformis) in Al Luqta area. Doha, Qatar, March 13, 2015
 Buffelgrass (African foxtail grass, Cenchrus pennisetiformis) at entrance of Ras Abrouq Peninsula near Zekreet. Qatar, November 14, 2014
 Buffelgrass (African foxtail grass, Cenchrus pennisetiformis) with a stone fence background in Al Luqta area. Doha, Qatar, March 13, 2015
 African foxtail grass (buffelgrass, Cenchrus pennisetiformis) in a runnel north from Dukhan. Qatar, February 20, 2016
 African foxtail grass (buffelgrass, Cenchrus pennisetiformis) in a runnel north from Dukhan. Qatar, February 20, 2016
 African foxtail grass (buffelgrass, Cenchrus pennisetiformis) on the border of Green Circles (center-pivot irrigation) in Irkhaya Farms. South-western Qatar, March 29, 2014
 Spike of African foxtail grass (buffelgrass, Cenchrus pennisetiformis) in a runnel north from Dukhan. Qatar, February 20, 2016
 Buffelgrass (African foxtail grass, Cenchrus pennisetiformis) on roadside of Dukhan Highway near Al Shakhaniya. Qatar, January 15, 2016
 Young spike of African foxtail grass (buffelgrass, Cenchrus pennisetiformis) in a runnel north from Dukhan. Qatar, February 20, 2016
 Close up of a spike of African foxtail grass (buffelgrass, Cenchrus pennisetiformis) in a runnel north from Dukhan. Qatar, February 20, 2016
 Buffelgrass (African foxtail grass, Cenchrus pennisetiformis)(?) on a rocky ridge in Jabal Al Jassasiya, on north-eastern coast. Qatar, March 26, 2016
 Spikelet of southern sandbur grass (Cenchrus echinatus) on Al Muhandiseen Street near West Bay. Doha, Qatar, May 6, 2014
 Close up of a spikelet of southern sandbur grass (Cenchrus echinatus) on Al Muhandiseen Street near West Bay. Doha, Qatar, May 6, 2014
 Southern sandbur grass (Cenchrus echinatus) near Al Istiqlal Street in West Bay. Doha, Qatar, May 5, 2014
 Spike of southern sandbur grass (Cenchrus echinatus) near Al Sham Street in West Bay. Doha, Qatar, May 5, 2014
 Spikelet of foxtail millet grass (Setaria italica) on Park Hudson Trail. College Station, Texas, August 6, 2014
 Foxtail millet grass (Setaria italica) spikelet in dew on Park Hudson Trail. College Station, Texas, August 6, 2014
 Southern sandbur grass (Cenchrus echinatus) taken from Al Sham Street in West Bay. Doha, Qatar, February 19, 2015
 Bristly spikelet of foxtail millet grass (Setaria italica) in Lick Creek Park. College Station, Texas, August 3, 2014
 Fruits of date palm (Phoenix dactylifera, local name nakheel) on Al Muhandiseen Street near West Bay. Doha, Qatar, May 6, 2014
 Date palm (Phoenix dactylifera, local name nakheel) with fruits on Al Muhandiseen Street near West Bay. Doha, Qatar, May 6, 2014
 Dry rusty brown leaves and inflorescence of mango tree (Mangifera indica) on the ground near Al Muhandiseen Street in West Bay. Doha, Qatar, May 7, 2014
 Purslane-leaved aizoon (Aizoon canariense) on Al Muhandiseen Street near West Bay. Doha, Qatar, May 6, 2014
 Purslane-leaved aizoon (Aizoon canariense) on sidewalk of Al Muhandiseen Street near West Bay. Doha, Qatar, May 6, 2014
 Purslane-leaved aizoon (Aizoon canariense) plant grown on sidewalk of Al Muhandiseen Street near West Bay. Doha, Qatar, May 6, 2014
 Foxtail amaranth (Amaranthus caudatus, local name samghat reeh) on Al Sham Street in area of West Bay. Doha, Qatar, April 17, 2014
 Southern sandbur grass (Cenchrus echinatus) taken from Makkah Street in Al Luqta area. Doha, Qatar, March 15, 2016
 Fagonia bruguieri (Fagonia echinella, local names dereima, showeika, shaki, shoka, Dhuraymah) near Al Muhandiseen Street in West Bay. Doha, Qatar, May 7, 2014
 Bristly foxtail grass (Setaria verticillata) on Al Mawrid Street in Al Lejbailat area. Doha, Qatar, May 26, 2016
 Spikelet of finger grass (Chloris virgata) taken from Al Sham Street in Onaiza area. Doha, Qatar, April 20, 2015
 Close up of bristly foxtail grass (Setaria verticillata) taken from Al Mawrid Street in Al Lejbailat area. Doha, Qatar, May 26, 2016
 Grass spikelet of Asian crabgrass (Digitaria bicornis) taken near Al Sham Street in Onaiza area. Doha, Qatar, June 3, 2015
 Spikelet of rabbitsfoot grass (Polypogon monspeliensis)(?) taken from eastern Al Jood Street in Onaiza area. Doha, Qatar, April 7, 2015
 Sandburs spikelet (Cenchrus spinifex) in Lemontree Park. College Station, Texas, July 27, 2014
 Grass spikelet of Asian crabgrass (Digitaria bicornis) on white background taken near Al Sham Street in Onaiza area. Doha, Qatar, June 3, 2015
 Grass spikelet of Asian crabgrass (Digitaria bicornis) on dark background taken near Al Sham Street in Onaiza area. Doha, Qatar, June 3, 2015
 Spikelet of grass Awnless barnyard grass (Echinochloa colona?) in silty depression on roadside of a road from Dukhan to Al Jumayliyah. Western Qatar, March 1, 2014
 South African pigeon grass (African bristlegrass, Setaria sphacelata) with long spikelets near irrigation pipes on Green Circles in Irkhaya Farms. Qatar, January 16, 2015
 Aeluropus lagopoides grass taken from Al Sham Street in area of West Bay. Doha, Qatar, August 16, 2014
 Fountain grass (Pennisetum setaceum) near Al Sham Street in West Bay. Doha, Qatar, October 20, 2014
 Long spikelets of South African pigeon grass (African bristlegrass, Setaria sphacelata) on Green Circles (center-pivot irrigation) in Irkhaya Farms. Qatar, January 16, 2015
 Spikelet of winter wild oat (Avena sterilis) taken from area of Al Sham Street in West Bay. Doha, Qatar, March 4, 2015
 Foxtail amaranth (Amaranthus caudatus, local name samghat reeh) on Umm Wishad Street in Musheirib area. Doha, Qatar, March 14, 2014
 Finger grass (Chloris virgata) collected from Al Sham Street in West Bay. Doha, Qatar, September 8, 2014
 Halophytic grass Aeluropus lagopoides taken from Al Sham Street in area of West Bay. Doha, Qatar, August 16, 2014
 Close up of long spikelets of South African pigeon grass (African bristlegrass, Setaria sphacelata) on Green Circles (center-pivot irrigation) in Irkhaya Farms. Qatar, January 16, 2015
 Blooming South African pigeon grass (African bristlegrass, Setaria sphacelata) with long spikelets on Green Circles (center-pivot irrigation) in Irkhaya Farms. Qatar, January 16, 2015
 Finger grass (Chloris virgata) with red aphids on Al Sham Street in area of West Bay. Doha, Qatar, April 11, 2014
 Creeping centipede grass (Eremochloa ophiuroides) near Majlis Al Taawon Street in West Bay. Doha, Qatar, April 19, 2014
 Shoot of centipede grass (Eremochloa ophiuroides) near Majlis Al Taawon Street in West Bay. Doha, Qatar, April 19, 2014
 Finger grass (feather windmillgrass, Chloris virgata) on Al Sham Street in area of West Bay. Doha, Qatar, April 11, 2014
 Awnless barnyard grass (Echinochloa colona, local names dhunaiba, abu roukba) near Al Istiqlal Street in West Bay. Doha, Qatar, May 5, 2014
 Mat of common salt grass (Aeluropus lagopoides) near leaking water pipes on Al Sham Street in West Bay. Doha, Qatar, September 5, 2014
 Spikelet of some grass on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
 Grass spikelet of Sorghum halepense(?) taken from a place with water leakage in Al Luqta area. Doha, Qatar, March 13, 2015
 Bristly foxtail grass (Setaria verticillata) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
 Sandburs spikelet (Cenchrus spinifex) on roadside of Road 364, near Sugarloaf Mountain. Gause, Texas, September 20, 2008
 Ashwagandha plant (Withania somnifera) on Al Muhandiseen Street in Al Lejbailat area. Doha, Qatar, February 25, 2016
 Dry spikelet of grass in Lick Creek Park. College Station, Texas, July 26, 2014
 Flowers of Ashwagandha plant (Withania somnifera) on Al Muhandiseen Street in Al Lejbailat area. Doha, Qatar, February 25, 2016
 Fruits of Ashwagandha plant (Withania somnifera) on Al Muhandiseen Street in Al Lejbailat area. Doha, Qatar, February 25, 2016
 Ashwagandha plant (Withania somnifera) with fruits on Al Muhandiseen Street in Al Lejbailat area. Doha, Qatar, March 2, 2016
 Sandburs spikelet (Cenchrus spinifex) taken from a lawn near apartments at George Bush Drive. College Station, Texas, September 30, 2012
 Ripe fruits of Ashwagandha plant (Withania somnifera) taken from Al Muhandiseen Street in Al Lejbailat area. Doha, Qatar, February 25, 2016
 Close up of fruits of Ashwagandha plant (Withania somnifera) taken from Al Muhandiseen Street in Al Lejbailat area. Doha, Qatar, February 25, 2016
 Ashwagandha plant (Withania somnifera) near a stone building on Al Muhandiseen Street in Al Lejbailat area. Doha, Qatar, February 25, 2016
 Ripening fruits of Ashwagandha plant (Withania somnifera) on Al Muhandiseen Street in Al Lejbailat area. Doha, Qatar, February 25, 2016
 Detached red berries of Ashwagandha plant (Withania somnifera) taken from Al Muhandiseen Street in Al Lejbailat area. Doha, Qatar, February 25, 2016
 Large bush of Ashwagandha plant (Withania somnifera) on Al Muhandiseen Street in Al Lejbailat area. Doha, Qatar, March 2, 2016
 Leaves of cultivated sweet potato (Ipomoea batatas) on Al Muhandiseen Street in Al Lejbailat area. Doha, Qatar, February 25, 2016
 Fruits of Ashwagandha plant (Withania somnifera) on white background taken from Al Muhandiseen Street in Al Lejbailat area. Doha, Qatar, February 25, 2016
 Grass spikelet on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014
 Bitter melon (Momordica charantia) cultivated in a small kitchen garden on Al Muhandiseen Street in Al Lejbailat area. Doha, Qatar, February 25, 2016
 Sandburs spikelet (Cenchrus spinifex) in Bastrop State Park. Bastrop, Texas, September 10, 2020
 Close up of sandburs spikelet (Cenchrus spinifex) in Lake Bryan Park. Bryan, Texas, October 19, 2009
 Field of cultivated sweet potato (Ipomoea batatas) in a small kitchen garden on Al Muhandiseen Street in Al Lejbailat area. Doha, Qatar, February 25, 2016
 Flower of bitter melon (Momordica charantia) cultivated in a small kitchen garden on Al Muhandiseen Street in Al Lejbailat area. Doha, Qatar, February 25, 2016
 Leaf of bitter melon (Momordica charantia) cultivated in a small kitchen garden on Al Muhandiseen Street in Al Lejbailat area. Doha, Qatar, February 25, 2016
 Spikelet of sweet corn (Zea mays)(?) on Ibn Nusaih Street in Onaiza area. Doha, Qatar, March 13, 2015
 Sandburs spikelet (Cenchrus spinifex) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 3, 2008
 Spikelet of sweet corn (Zea mays)(?) on white background taken from Ibn Nusaih Street in Onaiza area. Doha, Qatar, March 13, 2015
 Spikelet of sweet corn (Zea mays)(?) on Al Jood Street near corner with Saha 16 in Onaiza area. Doha, Qatar, March 8, 2015
 Spikelet of sweet corn (Zea mays)(?) on white background taken from Ibn Nusaih Street in Onaiza area. Doha, Qatar, March 13, 2015
 African tulip tree (Spathodea campanulata) in a park at Al Intisar Street near a corner with Onaiza. Doha, Qatar, May 3, 2015
 Spikelet of Dallis grass (Paspalum dilatatum) in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, September 9, 2020
 Flowers of African tulip tree (Spathodea campanulata) in a park at Al Intisar Street near a corner with Onaiza. Doha, Qatar, May 16, 2016
 Spikelet of grass Pennisetum divisum in a runnel north from Dukhan. Qatar, February 20, 2016
 Spikelet of grass Pennisetum divisum taken from a runnel north from Dukhan. Qatar, February 20, 2016
 Cylindrical spikelet of grass Pennisetum divisum taken from roadside near entrance of Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Snake tongue grass (Corymbose Hedyotis, Oldenlandia corymbosa) on Al Sanaa Street in Al Jebailat area near West Bay. Doha, Qatar, May 7, 2015
 Snake tongue grass (Corymbose Hedyotis, Oldenlandia corymbosa) taken from Al Sanaa Street in Al Jebailat area near West Bay. Doha, Qatar, May 7, 2015
 Centipede grass (Eremochloa ophiuroides) taken from a park east from Al Khaliji Bank near Majlis Al Taawon Street in West Bay. Doha, Qatar, June 18, 2015
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