 Close up of a yellow flower of southern cassia (Senna corymbosa, Cassia falcata) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, November 6, 2013
 Southern cassia (Senna corymbosa, Cassia falcata) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, December 3, 2012
 Southern cassia (Senna corymbosa, Cassia falcata) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, October 17, 2008
 Southern cassia (Senna corymbosa, Cassia falcata) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, October 20, 2009
 Senna (Buttercup Bush, Senna corymbosa, Cassia falcata) flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 12, 2008
 Flowers of Senna italica (Cassia aschrak, Cassia obovata, Cassia italica, local names ishrig, senna, senna mekki) on roadside of a road from Dukhan to Al Jumayliyah. Western Qatar, March 1, 2014
 Top of a yellow flower of candle bush (candletree, Cassia alata, Senna alata) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, September 11, 2008
 Yellow candlesticks of candle bush (candletree, Cassia alata, Senna alata) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, September 5, 2008
 Yellow flower of candle bush (candletree, Cassia alata, Senna alata) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, September 12, 2008
 Senna italica (Cassia aschrak, Cassia obovata, Cassia italica, local names ishrig, senna, senna mekki) on roadside of a road from Dukhan to Al Jumayliyah. Western Qatar, March 1, 2014
 Candlestick-shaped flower of candle bush (candletree, Cassia alata, Senna alata) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, September 5, 2008
 Close up of a flower of Southern cassia in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, October 30, 2009
 Wasp on a yellow flower of candle bush (Cassia alata) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, October 10, 2008
 Southern wild senna (Senna marilandica, Cassia) in Lick Creek Park. College Station, Texas, July 15, 2014
 Southern wild senna (Senna marilandica, Cassia) in Lick Creek Park. College Station, Texas, August 4, 2021
 Southern wild senna (Senna marilandica, Cassia) in Lick Creek Park. College Station, Texas, July 26, 2014
 Flowers of Senna italica (Cassia) on roadside near Trainah. Southern Qatar, November 7, 2014
 Flower of Southern wild senna (Senna marilandica, Cassia) in Lick Creek Park. College Station, Texas, July 26, 2014
 Ants on flowers of southern wild senna (Senna marilandica, Cassia) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Senna with needle-shaped leaves (Fine-leaf desert cassia, Cassia nemophila, Senna artemisioides subsp. filifolia) in Al Luqta area. Doha, Qatar, March 13, 2015
 Flowers of fine-leaf desert cassia (Cassia nemophila, Senna artemisioides subsp. filifolia) taken from Al Luqta area. Doha, Qatar, March 13, 2015
 Senna with needle-shaped leaves (Fine-leaf desert cassia, Cassia nemophila, Senna artemisioides subsp. filifolia) on Al Rayhan Street in Al Luqta area. Doha, Qatar, January 14, 2016
 Fire ants eating yellow flower of candle bush (candletree, Cassia alata, Senna alata) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, July 27, 2008
 Flowers of fine-leaf desert cassia (Cassia nemophila, Senna artemisioides subsp. filifolia) on Al Rayhan Street in Al Luqta area. Doha, Qatar, February 24, 2016
 Fine-leaf desert cassia (Cassia nemophila, Senna artemisioides subsp. filifolia) with flowers on Al Rayhan Street in Al Luqta area. Doha, Qatar, February 24, 2016
 Flowers of fine-leaf desert cassia (Cassia nemophila, Senna artemisioides subsp. filifolia) on Al Rayhan Street in Al Luqta area. Doha, Qatar, January 14, 2016
 Sprout of candle bush (Cassia alata) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, October 28, 2008
 Leaves of candle bush (Cassia alata) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 9, 2010
 Young leaves of candle bush (Cassia alata) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 16, 2010
 Southern wild senna (Senna marilandica, Cassia) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Blooming southern wild senna (Senna marilandica, Cassia) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Ants on southern wild senna (Senna marilandica, Cassia) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Inflorescence of southern wild senna (Senna marilandica, Cassia) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Leaf-footed bug (Leptoglossus zonatus) on a flower of candle bush (Cassia alata) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, October 7, 2008
 Southern wild senna (Senna marilandica, Cassia) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, August 10, 2008
 Green seed pod of Senna italica (Cassia) on roadside near Trainah. Southern Qatar, November 7, 2014
 Fine-leaf desert cassia (Cassia nemophila, Senna artemisioides subsp. filifolia) on Al Rayhan Street in Al Luqta area. Doha, Qatar, January 14, 2016
 Fine-leaf desert cassia (Cassia nemophila, Senna artemisioides subsp. filifolia) on Al Rayhan Street in Al Luqta area. Doha, Qatar, February 24, 2016
 Ladybird on a flower of candle bush (candletree, Cassia alata, Senna alata) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, September 27, 2008
 Blooming fine-leaf desert cassia (Cassia nemophila, Senna artemisioides subsp. filifolia) on Al Rayhan Street in Al Luqta area. Doha, Qatar, February 24, 2016
 Bush of fine-leaf desert cassia (Cassia nemophila, Senna artemisioides subsp. filifolia) on Al Rayhan Street in Al Luqta area. Doha, Qatar, February 24, 2016
 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
 Lantana flowers in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, November 6, 2013
 Flowers of Yellow star-like flowers of Cestrum aurantiacum (Hediondillo, Huele De Noche, Yellow Cestrum, Yellow Shrub Jessamine) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 10, 2009
 Blooming Golden Senna (Glaucous Cassia, Senna surattensis) on Corniche. Doha, Qatar, May 3, 2014
 Bauhinia corymbosa (phanera) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, September 21, 2009
 Bauhinia corymbosa (phanera) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, June 28, 2012
 Golden Senna (Glaucous Cassia, Senna surattensis) on Al Shatt Street in Onaiza area. Doha, Qatar, January 18, 2016
 Golden Senna (Glaucous Cassia, Senna surattensis) on Al Jood Street in Onaiza area. Doha, Qatar, April 20, 2015
 Golden Senna (Glaucous Cassia, Senna surattensis) in a park at Al Intisar Street near a corner with Onaiza. Doha, Qatar, December 1, 2015
 Leaves of Golden Senna (Glaucous Cassia, Senna surattensis) on Al Jood Street in Onaiza area. Doha, Qatar, April 20, 2015
 Golden Senna (Glaucous Cassia, Senna surattensis) in a park at Al Intisar Street near a corner with Onaiza. Doha, Qatar, March 14, 2016
 Senna italica (Cassia) at entrance of Ras Abrouq Peninsula near Zekreet. Qatar, November 14, 2014
 Yellow star-like flowers of Cestrum aurantiacum (Hediondillo, Huele De Noche, Yellow Cestrum, Yellow Shrub Jessamine) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 24, 2008
 Yellow flowers of Mexican Hat in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 11, 2012
 Yellow agave flowers in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 20, 2008
 Yellow flowers of partridge pea (Cassia fasciculata) in Lick Creek Park, on Post Oak Trail. College Station, Texas, May 31, 2008
 Yellow flowers of forsythia in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, February 6, 2009
 Yellow cactus flowers in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, September 8, 2011
 Yellow flowers of gourd in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 7, 2008
 Yellow flowers on a cactus in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, September 8, 2011
 Yellow flowers of a cactus in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 31, 2009
 Yellow flowers of stonecrop (Sedum) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 17, 2009
 Leaf-footed bug (Coreidae) Leptoglossus zonatus on senna flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, October 2, 2008
 Yellow flowers of parralena (Dyssodia pentachaeta) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 13, 2009
 Yellow flowers of rooiwortel (Bulbine latifolia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 21, 2009
 Morning freeze on yellow viola flowers in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 29, 2009
 Yellow flowers of Heteropterys (Heteropteris) angustifolia in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, June 7, 2008
 Yellow star like flowers of Dwarf Yellow Mussaenda (Pseudomussaenda flava, Mussaenda lutea, luteola, glabra, incana) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, June 20, 2008
 Marsh cypress with yellow foliage in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 16, 2013
 Yellow flowers of Agarita (Berberis trifoliolata, Mahonia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, February 27, 2009
 Yellow flowers of Evening primrose (Oenothera hookeri) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, September 3, 2009
 Small yellow flowers of Helichrysum italicum (strawflower, immortelle) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, October 18, 2008
 Yellow flowers of butterfly vine (gallinita, Mascagnia macroptera) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, October 1, 2009
 Close-up of yellow flowers of Hooker s evening primrose (Oenothera hookeri) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, September 5, 2008
 Large yellow flowers of Hooker s evening primrose (Oenothera hookeri) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 26, 2008
 Originally yellow flowers of candle bush damaged by recent frost in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, December 10, 2009
 Yellow flower of Sundrops (Turnera ulmifolia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, November 6, 2008
 Lantana flowers in dew in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, November 2, 2009
 Orange flowers of lantana in dew in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, November 18, 2009
 Red flowers of malva family in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, November 24, 2010
 Orange trumpet like flowers in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, November 6, 2008
 Blue skullcap(?) flowers in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, November 6, 2008
 Pink flowers of milfoil (millefolium) in dew in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, November 18, 2009
 Leaf pattern of candle bush (Cassia alata) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, July 16, 2011
 Leaf pattern of candle bush (Cassia alata) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, July 8, 2011
 White flowers of Philadelphus X virginalis Natchez in dew in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, November 2, 2009
 Juniper like berries of cedar in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, November 6, 2013
 Weeping bottlebrush (Callistemon viminalis) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, November 6, 2013
 Seedling of Senna italica (Cassia) near Al Khor Hospital. Qatar, December 13, 2014
 Buds of orange flowers of Leonotis nepetaefolia (Cordao, klip dagga) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, November 10, 2009
 White flowering pickerelweed (Pontederia) with 6-petaled flowers in a cylindrical cluster and spindle-like bilobed yellow spots on the middle upper petals in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, June 24, 2008
 Fruits of Cestrum aurantiacum (Hediondillo, Huele De Noche, Yellow Cestrum) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, November 26, 2008
 Blue-purple 6-petaled flowers in a cylindrical cluster of Pickerelweed (Pontederia cordata) in TAMU Horticultural Gardens in Texas A and M University, with spindle-like bilobed yellow spots on the middle upper petals. College Station, Texas, June 7, 2008
 Golden star shaped flowers of Dwarf Yellow Mussaenda (Pseudomussaenda flava, Mussaenda lutea, luteola, glabra, incana) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, June 13, 2008
 Pink flowers of X Ruttyruspolia (Ruddy Rose Pink, Ruspolia) in dew in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, November 5, 2009
 Senna italica (Cassia) plant in desert of Harrarah, 40 miles south-west from Doha. Qatar, March 2, 2012
 Cestrum aurantiacum (Hediondillo, Huele De Noche, Yellow Cestrum, Yellow Shrub Jessamine) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 3, 2009
 Cestrum aurantiacum (Hediondillo, Huele De Noche, Yellow Cestrum, Yellow Shrub Jessamine) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 9, 2008
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