 Seeds of wild gourd (Cucumis prophetarum) on dark background taken from Umm Houtah in Southern Qatar, January 16, 2015
 Ripe fruit of wild gourd (Cucumis prophetarum) taken from Umm Houtah in Southern Qatar, January 16, 2015
 Wild gourd (Cucumis prophetarum) on roadside of a road from Khawzan to Al-Jumayliyah. Qatar, April 9, 2016
 Flower of wild gourd (Cucumis prophetarum) on roadside of a road from Khawzan to Al-Jumayliyah. Qatar, April 9, 2016
 Wild gourd (Cucumis prophetarum) on roadside of a road to Al Nuaman (Al Numan) near Zubara. Northern Qatar, December 12, 2014
 Flower of wild gourd (Cucumis prophetarum) on roadside of a road to Al Nuaman (Al Numan) near Zubara. Northern Qatar, December 12, 2014
 Fruit of wild gourd (Cucumis prophetarum) taken from roadside of a road to Al Nuaman (Al Numan) near Zubara. Northern Qatar, December 12, 2014
 Ripe fruit of wild gourd (Cucumis prophetarum) on roadside of a road to Al Nuaman (Al Numan) near Zubara. Northern Qatar, December 12, 2014
 Green fruits of wild gourd (Cucumis prophetarum) on roadside of a road to Al Nuaman (Al Numan) near Zubara. Northern Qatar, December 12, 2014
 Dissected fruit of wild gourd (Cucumis prophetarum) taken from roadside of a road to Al Nuaman (Al Numan) near Zubara. Northern Qatar, December 12, 2014
 Green fruit of wild gourd (Cucumis prophetarum) taken from roadside of a road to Al Nuaman (Al Numan) near Zubara. Northern Qatar, December 12, 2014
 Close up of a green fruit of wild gourd (Cucumis prophetarum) on roadside of a road to Al Nuaman (Al Numan) near Zubara. Northern Qatar, December 12, 2014
 Yellow fruit on a plant of wild gourd (Cucumis prophetarum) on roadside of a road to Al Nuaman (Al Numan) near Zubara. Northern Qatar, December 12, 2014
 Yellow flower with ovary of wild gourd (Cucumis prophetarum) on roadside of a road to Al Nuaman (Al Numan) near Zubara. Northern Qatar, December 12, 2014
 Close up of a ripe yellow fruit of wild gourd (Cucumis prophetarum) on roadside of a road to Al Nuaman (Al Numan) near Zubara. Northern Qatar, December 12, 2014
 Old mosque in Umm Houtah. Southern Qatar, January 16, 2015
 Flowers of Psoralea plicata (Cullen plicatum, local names hama, Jhil) in Umm Houtah. Southern Qatar, January 16, 2015
 Flowers and fruits of Psoralea plicata (Cullen plicatum, local names hama, Jhil) in Umm Houtah. Southern Qatar, January 16, 2015
 Desert gourd Citrullus colocynthis (Cucumis colocynthis, local names handal, shary, Handhal) near a road to Sawda Natheel in southern Qatar, February 11, 2014
 Flower of desert gourd Citrullus colocynthis (Cucumis colocynthis, local names handal, shary, Handhal) near a road to Sawda Natheel in southern Qatar, February 11, 2014
 Desert gourd Citrullus colocynthis (bitter apples, Cucumis colocynthis, local names handal, shary, Handhal) near a road to Sawda Natheel in southern Qatar, February 11, 2014
 Ripe yellow fruits of wild muskmelon (Cucumis melo, Dudaim melon, gourd family) in Lake Bryan Park. Bryan, Texas, November 8, 2012
 Frozen wild muskmelon (Cucumis melo, Dudaim melon, gourd family) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, December 1, 2011
 Frozen fruits of wild muskmelon (Cucumis melo, Dudaim melon, gourd family) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, December 7, 2011
 Desert gourd Citrullus colocynthis (Cucumis colocynthis, local names handal, shary, Handhal) in a silty depression in Al Nuaman (Naim tribe, Nuaimiya) near Zubara. Northern Qatar, March 28, 2015
 Desert gourd Citrullus colocynthis (Cucumis colocynthis) taken from area of Al Khor. Qatar, December 5, 2014
 Fruit of desert gourd Citrullus colocynthis (bitter apples, Cucumis colocynthis, local names handal, shary, Handhal) near Karaana (Karana, Al Kiranah), south-west from Doha. Qatar, April 23, 2014
 Leaves of desert gourd Citrullus colocynthis (bitter apples, Cucumis colocynthis, local names handal, shary, Handhal) on roadside of Salwa Road near Karaana, south-west from Doha. Qatar, April 23, 2014
 Shoot of desert gourd Citrullus colocynthis (bitter apples, Cucumis colocynthis, local names handal, shary, Handhal) on roadside of Salwa Road near Karaana, south-west from Doha. Qatar, April 23, 2014
 Seeds of desert gourd Citrullus colocynthis (bitter apples) taken from a road to Al Jumayliyah in north-western Qatar, December 6, 2014
 Common purslane (wild portulaca, Portulaca oleracea, local names barbeer, rijla, bagla) with seeds on waste ground on Al Shatt Street in Onaiza area. Doha, Qatar, January 26, 2016
 Lunaria (Savignya parviflora, local name Gilgilan) with seeds in windblown sand on roadside of Salwa Road in area of Rawdat Ekdaim. Southern Qatar, April 11, 2015
 Seeds of Tetraena qatarense (Zygophyllum qatarense) in sand near Qulmat Al Maszhabiya in Al Mashabiya Reserve near Abu Samra. Southern Qatar, October 31, 2015
 Wild cotton (Gossypium herbaceum) taken Al Istiqlal Street near West Bay. Doha, Qatar, January 5, 2015
 Dissected fruits of wild cotton (Gossypium herbaceum) taken Al Istiqlal Street near West Bay. Doha, Qatar, January 5, 2015
 Wild muskmelon (Cucumis melo, Dudaim melon) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, October 16, 2024
 Flower of desert gourd Citrullus colocynthis taken from roadside of Salwa Road. Southern Qatar, November 29, 2014
 Rare plant Koelpinia linearis with seeds in windblown sand on southern side of Salwa Road in area of Khashem Al Nekhsh. Southern Qatar, March 18, 2016
 Seeds of Field Marigold (Calendula arvensis) taken from roadside near Al Khor Hospital. Qatar, January 9, 2015
 Date palm seeds at archeological display near Zubara Fort. Northern Qatar, January 24, 2015
 Common purslane (wild portulaca, Portulaca oleracea, local names barbeer, rijla, bagla) in windblown sand on roadside of Salwa Road in area of Rawdat Ekdaim. Southern Qatar, April 11, 2015
 Wild muskmelon (Cucumis melo, Dudaim melon) on utility cutting in Lake Bryan Park. Bryan, Texas, December 4, 2012
 Field of desert watermellons Citrullus colocynthis (Cucumis colocynthis, local names handal, shary, Handhal) near a road to Sawda Natheel in southern Qatar, February 11, 2014
 Accumulation of dry seeds of Medicago laciniata on Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, January 9, 2015
 Flower and seeds of Field Marigold (Calendula arvensis) taken from roadside near Al Khor Hospital. Qatar, January 9, 2015
 Orange fruits of wild muskmelon (Cucumis melo, Dudaim melon) on utility cutting in Lake Bryan Park. Bryan, Texas, November 18, 2012
 Fall colors of wild muskmelon (Cucumis melo, Dudaim melon) on utility cutting in Lake Bryan Park. Bryan, Texas, November 22, 2012
 Section of wild muskmelon (Cucumis melo, Dudaim melon) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, October 16, 2024
 Seedling of bitter gourd (Citrullus colocynthis) on roadside of a road to Umm Hota Village, near Sawda Natheel. Southern Qatar, February 5, 2016
 Orange fruits on a frozen wild muskmelon (Cucumis melo, Dudaim melon) on utility cutting in Lake Bryan Park. Bryan, Texas, November 22, 2012
 Half eaten fruit of wild muskmelon (Cucumis melo, Dudaim melon) on utility cutting in Lake Bryan Park. Bryan, Texas, October 31, 2012
 Flowers of field mustard (wild turnip, Brassica rapa) on Green Circles (center-pivot irrigation) in Irkhaya Farms. Qatar, January 16, 2015
 Seeds of Argentine peppercress (Lepidium bonariense) on Green Circles (center-pivot irrigation) in Irkhaya Farms. Qatar, January 16, 2015
 Flowers and seeds of Argentine peppercress (Lepidium bonariense) on Green Circles (center-pivot irrigation) in Irkhaya Farms. Qatar, January 16, 2015
 Decorations at the entrance of Al Aamriyah. Southern Qatar, January 16, 2015
 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
 Dishrag gourd (Luffa cylindrica)(?) on roadside of Salwa Road near Mukaynis. Qatar, November 27, 2015
 Branch of Wormseed (Dysphania ambrosioides, Chenopodium ambrosioides) with seeds taken from Green Circles (center-pivot irrigation) in Irkhaya Farms. Qatar, January 16, 2015
 Fleabane Daisy (Erigeron bonariensis, Conyza bonariensis) with fluffy seeds in a silty depression in Al Nuaman (Al Numan) near Zubara. Northern Qatar, January 8, 2015
 Flower of snake gourd (Trichosanthes cucumerina) taken from Al Wosail Street in Onaiza area. Doha, Qatar, April 27, 2015
 Flower of snake gourd (Trichosanthes cucumerina) on Al Wosail Street in Onaiza area. Doha, Qatar, April 8, 2015
 Desert gourd Citrullus colocynthis in a silty depression in Al Nuaman (Al Numan) near Zubara. Northern Qatar, March 20, 2015
 Dry plant of Launaea nudicaulis(?) or may be L. procumbens with seeds near Mesaieed. Southern Qatar, May 27, 2016
 Close up of a flower of snake gourd (Trichosanthes cucumerina) on Al Wosail Street in Onaiza area. Doha, Qatar, April 8, 2015
 Seeds(?) of Bienertia cycloptera on a beach in Abu Samra, near the border. Southern Qatar, November 29, 2014
 Fluffy seeds of Leptadenia pyrotechnica taken from roadside of Salwa Road in Southern Qatar, June 10, 2016
 Dry plant of distaff-thistle (Atractylis carduus) with fluffy seeds near Mesaieed. Southern Qatar, May 27, 2016
 Bush of Leptadenia pyrotechnica in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
 Bottle gourd (calabash, Lagenaria siceraria) on a fence on Al Abeer Street in Al Luqta area. Doha, Qatar, January 14, 2016
 Flower of bottle gourd (calabash, Lagenaria siceraria) on Al Abeer Street in Al Luqta area. Doha, Qatar, January 14, 2016
 View from a crest of sand dune in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
 Sand mound with Leptadenia pyrotechnica in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
 Dishrag gourd (Luffa aegyptiaca, Luffa cylindrica) at Al Jassasiya Street in Musheirib neighborhood. Doha, Qatar, December 25, 2015
 Sand-blast type of wind abrasion in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
 Yellow flower of Loufa gourd (Loofah Sponge Gourd, luffa) in Antique Rose Emporium. Independence, Texas, October 12, 2013
 Large plant of desert gourd Citrullus colocynthis on a Ziziphus bush in a silty depression in Al Numan (Naim tribe, Nuaman, Nuaimiya). Northern Qatar, February 6, 2015
 Seeds of desert grass Panicum turgidum (local name Thummam) in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, May 20, 2016
 Stork s bill (Monsonia nivea, Erodium neveum) with seeds near a road to Harrarah (Al Kharrarah). Southern Qatar, April 23, 2016
 Seeds of wild carrot (Daucus pusillus) in Lick Creek Park. College Station, Texas, May 22, 2012
 Seeds of Wild Carrot (Daucus pusillus) in Lick Creek Park. College Station, Texas, May 4, 2011
 Seeds of Wild Carrot (Daucus pusillus) in Lick Creek Park. College Station, Texas, May 21, 2009
 Seeds of Wild Carrot (Daucus pusillus) in Lick Creek Park. College Station, June 14, 2008
 Aeolian abrasion of limestone rocks (carved by drifting sand) in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
 Desert rock carved by drifting sand (aeolian abrasion) in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
 Sedge (Cyperus conglomeratus)(?) growind at the foot of a sand dune in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
 Fluffy seeds of Sewan grass (Lasiurus scindicus) on sand dunes in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 8, 2016
 Fluffy seeds of Sewan grass (Lasiurus scindicus) on sand dunes in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 29, 2016
 Vietnamese gourd (Luffa cylindrica) at a door near B Ring Road in Al Doha Al Jadeeda neighborhood. Doha, Qatar, January 31, 2014
 Seeds of Wild Carrot (Daucus pusillus) in Lick Creek Park. College Station, Texas, August 17, 2010
 Dry seeds of wild carrot (Daucus pusillus) in Lick Creek Park. College Station, Texas, June 10, 2012
 Dry seeds of Canada wild rye (Elymus canadensis)(?) in Lick Creek Park. College Station, Texas, September 8, 2023
 Ripe seeds of wild carrot (Daucus pusillus) in Lick Creek Park. College Station, Texas, May 22, 2012
 Desert lizard Arabian toad headed agama (Phrynocephalus arabicus) in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
 Some grass, probably sedge (Cyperus conglomeratus)(?), growing on a crest of sand dune in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
 Various dry seeds accumulated under a plant of bushy bindweed (Convolvulus prostratus, morning glory) on a gravel plane in Harrarah (Al Kharrarah). Southern Qatar, April 23, 2016
 Accumulation of fluffy seeds of Sewan grass (Lasiurus scindicus) in sand dunes in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 29, 2016
 Woody branches with seeds of Virgin s Hand plant (Anastatica hierochuntica, local names kaf mariam, jefaiea) taken from Trainah in southern Qatar, February 14, 2014
 Curved branches with seeds of Virgin s Hand plant (Anastatica hierochuntica, local names kaf mariam, jefaiea) taken from Trainah in southern Qatar, February 14, 2014
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