 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 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
 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
 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) on roadside of Salwa Road, south-west from Doha. Qatar, April 23, 2014
 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, August 10, 2019
 Puncturevine (Caltrop, Tribulus terrestris) on Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 28, 2014
 Flower of puncturevine (Caltrop, Tribulus terrestris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2010
 Puncturevine (Caltrop, Tribulus terrestris, local name hasak) taken from Al Luqta area. Doha, Qatar, March 13, 2015
 Small yellow flower of puncturevine (Caltrop, Tribulus terrestris) in Old Baylor Park. Independence, Texas, September 6, 2009
 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) 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, July 1, 2012
 Puncturevine (Caltrop, Tribulus terrestris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 27, 2013
 Caltrop flower (puncturevine, Tribulus terrestris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Puncturevine (Caltrop, Tribulus terrestris) with a yellow flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 1, 2012
 Seeds of some grass in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 10, 2014
 Turk s cap (Malvaviscus drummondii) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 5, 2014
 Evening primrose (Oenothera) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 1, 2014
 Spurge (Euphorbia indica(?)) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 5, 2014
 Rainlily (Cooperia drummondi) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 5, 2014
 Pink species of Ruellia(?) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 1, 2014
 Turk s cap (Malvaviscus drummondii) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 1, 2014
 Overgrown path in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 24, 2018
 Overgrown path in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 24, 2013
 Caesalpinia pulcherrima (red bird of paradise) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 1, 2014
 Flower of Turk s cap (Malvaviscus drummondii) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 1, 2014
 Close up of Turk s cap (Malvaviscus drummondii) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 1, 2014
 Coastal globe amaranth (Gomphrena serrata) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 10, 2014
 Bubba desert willow (Chilopsis linearis) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 10, 2014
 Showy evening primrose (Oenothera speciosa) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 10, 2014
 Yellow flower of evening primrose (Oenothera) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 10, 2014
 Bush Morning Glory (Ipomoea carnea) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 1, 2014
 Bottle gourd (calabash, Lagenaria siceraria) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 10, 2014
 Shoot of bush morning glory (Ipomoea carnea)(?) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 5, 2014
 Flower of Bush Morning Glory (Ipomoea carnea) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 1, 2014
 Flower of bottle gourd (calabash, Lagenaria siceraria) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 10, 2014
 Coastal globe amaranth (Gomphrena serrata) on a lawn in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 5, 2014
 Overgrown path in Trial Beds area in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 13, 2019
 Close up of a flower of bottle gourd (calabash, Lagenaria siceraria) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 10, 2014
 Firecracker Shrub (Mexican Firebush, Hamelia patens) on a parking lot in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 5, 2014
 Flower buds of bottle gourd (calabash, Lagenaria siceraria) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 10, 2014
 Bleeding heart Vine, glory bower (Clerodendrum thomsoniae) on a parking lot in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 5, 2014
 Flower of Bush Morning Glory (Ipomoea carnea, pink form) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 10, 2014
 Blooming Bush Morning Glory (Ipomoea carnea, pink form) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 10, 2014
 Flowers of Bush Morning Glory (Ipomoea carnea, pink form) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 10, 2014
 Loufa gourd (Loofah Sponge Gourd, luffa) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 10, 2014
 Gate of Hensel Gardens in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 3, 2022
 Various leaves in freeze in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 3, 2014
 Euphorbia(?) in freeze in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 3, 2014
 Some plants in freeze in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 3, 2014
 Pile of leaves in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 3, 2014
 Spurge (Euphorbia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 20, 2014
 Blooming okra in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 20, 2014
 Iron sculpture in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 6, 2014
 Globe amaranth in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 20, 2014
 Lantana flowers in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 23, 2014
 Fruit of calla in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 23, 2014
 Dry leaves in freeze in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 3, 2014
 Sow thistle in freeze in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 3, 2014
 Pink rain lilies in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 23, 2014
 Evening primrose (Oenothera) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 23, 2014
 Pistil of hibiscus flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 23, 2014
 Rosettes of leaves in freeze in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 3, 2014
 Agave leaves in freeze in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 3, 2014
 Pile of leaves in freeze in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 3, 2014
 Pile of dry leaves in freeze in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 3, 2014
 Sow thistle (Sonchus) in freeze in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 3, 2014
 Rosette of leaves in freeze in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 3, 2014
 Leaf of sow thistle in freeze in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 3, 2014
 Small leaves in freeze in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 3, 2014
 Dry fallen leaves in freeze in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 3, 2014
 Rain lily (Cooperia drummondii) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 23, 2014
 Two rain lilies (Cooperia drummondii) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 23, 2014
 Rosettes of bluebonnet leaves in freeze in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 3, 2014
 Caesalpinia pulcherrima (red bird of paradise) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 23, 2014
 Fleabane Daisy (Erigeron) with seeds in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 23, 2014
 Sneezeweed (Helenium amarum) on a parking lot of TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 6, 2014
 Frog fruit (Lippia) in freeze in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 3, 2014
 Sunflower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 16, 2013
 Agave in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 21, 2008
 Asparagus in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 16, 2011
 Agaves in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 16, 2013
 Sunflower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 11, 2009
 Agave in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 4, 2011
 Stone ruins in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 3, 2022
 Dry zinnia flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 16, 2011
 Clematis reticulata in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 9, 2010
 Katydid nymph in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 1, 2010
 Floriculture Road in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 3, 2022
 Red zinnia flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 11, 2009
 Cypress cones in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 23, 2010
 Sunflower (Helianthus) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 11, 2021
 Dry flower of zinnia in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 4, 2011
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