 Yellow flower of Hooker s evening primrose (Oenothera hookeri) at sunrise in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 29, 2008
 Large yellow flower on a stout erect stem of Hooker s evening primrose (Oenothera hookeri) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 26, 2008
 Evening primrose (Oenothera) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 1, 2014
 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
 Large yellow flower of Hooker s evening primrose (Oenothera hookeri) and thick cylindrical ovaries behind it in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, October 21, 2008
 Showy evening primrose (Oenothera speciosa) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 10, 2014
 Yellow flowers of Evening primrose (Oenothera hookeri) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, September 3, 2009
 Evening primrose (Oenothera) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 23, 2014
 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
 Evening primrose (Oenothera hookeri) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 31, 2009
 Hooker s evening primrose (Oenothera hookeri) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 3, 2009
 Back-lit evening primrose (Oenothera hookeri) at sunrise in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 29, 2008
 Evening primrose (Oenothera) in dew in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, November 18, 2009
 Frozen evening primrose (Oenothera) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, December 11, 2012
 Hooker s evening primrose (Oenothera hookeri) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, September 11, 2008
 Hooker s evening primrose (Oenothera hookeri) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, September 8, 2009
 Flowers of showy evening primrose (Oenothera speciosa) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 9, 2018
 Showy evening primrose (Oenothera speciosa) and weeds in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 21, 2020
 Showy evening primrose (Oenothera speciosa) on a lawn in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 13, 2019
 Showy evening primrose (Oenothera speciosa) on a lawn in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 12, 2010
 Showy evening primrose (Oenothera speciosa) on a parking place in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 21, 2020
 Flowers of showy evening primrose (Oenothera speciosa) on a lawn in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 13, 2019
 Showy evening primrose (Oenothera speciosa) blooming near wooden fence in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 9, 2018
 Yellow flower of evening primrose (Oenothera hookeri) in Leach Teaching Gardens at Texas A and M University. College Station, Texas, July 7, 2022
 Yellow flowers of evening primrose (Oenothera hookeri) in the Gardens at Texas A and M University. College Station, Texas, August 10, 2021
 Yellow evening primrose in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 21, 2012
 Showy evening primrose (Oenothera speciosa) with lesser quaking-grass (Briza minor) in Hill Country Garden in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 13, 2019
 Yellow evening primrose(?) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 29, 2009
 Showy evening primrose flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 9, 2008
 Flower of Showy evening primrose (Oenothera speciosa) on Park Hudson Trail. College Station, Texas, August 12, 2014
 Flower of showy evening primrose (Oenothera speciosa) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, March 27, 2021
 Flower of showy evening primrose (Oenothera speciosa) under power lines near Park Hudson Trail. College Station, Texas, August 6, 2014
 Blooming evening primrose (Oenothera hookeri) in the Gardens at Texas A and M University. College Station, Texas, August 10, 2021
 Yellow gourd flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 11, 2009
 Yellow trumpet of Carolina jessamine (Gelsemium sempervirens, poor man s rope, evening trumpet-flower) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 5, 2008
 Evening primrose (Oenothera) in dew in Lick Creek Park. College Station, Texas, August 3, 2014
 Showy evening primrose (Oenothera speciosa) in Central Park. College Station, Texas, August 4, 2014
 Green lynx spider on a yellow trumpet (Tecoma stans) flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 11, 2009
 Tiny yellow flower of Narrow-leaved evening primrose (thread-leaf sundrops, Oenothera linifolia) in Lick Creek Park. College Station, Texas, April 24, 2009
 Tiny yellow flower of Narrow-leaved evening primrose (thread-leaf sundrops, Oenothera linifolia) in Lick Creek Park. College Station, Texas, April 11, 2022
 Tiny yellow flower of Narrow-leaved evening primrose (thread-leaf sundrops, Oenothera linifolia) in Lick Creek Park. College Station, Texas, April 11, 2010
 Yellow flowers of Narrow-leaved evening primrose (thread-leaf sundrops, Oenothera linifolia) in Lick Creek Park. College Station, Texas, May 20, 2014
 Showy evening primrose (Oenothera speciosa) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, April 30, 2011
 Showy evening primrose (Oenothera speciosa) on Park Hudson Trail. College Station, Texas, August 12, 2014
 Flower of Turk s cap (Malvaviscus drummondii) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 1, 2014
 Flower of Showy Evening Primrose (Oenothera speciosa) on a lawn near back entrance of Texas A and M University on campus of Education City. Doha, Qatar, May 7, 2014
 Evening primrose (Oenothera) in Leach Teaching Gardens at Texas A and M University. College Station, Texas, May 6, 2022
 Yellow flower of narrow-leaved evening primrose (thread-leaf sundrops, Oenothera linifolia) at the end of Creagor Lane near Lick Creek Greenway Trail. College Station, Texas, April 2, 2024
 Showy evening primrose (Oenothera speciosa) in the Gardens at Texas A and M University. College Station, Texas, March 27, 2021
 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
 Close up of a flower of Showy Evening Primrose (Oenothera speciosa) on a lawn near back entrance of Texas A and M University on campus of Education City. Doha, Qatar, May 7, 2014
 Showy evening primrose (Oenothera speciosa) under power lines near Park Hudson Trail. College Station, Texas, August 6, 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
 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
 Showy evening primrose (Oenothera speciosa) in Leach Teaching Gardens at Texas A and M University. College Station, Texas, March 31, 2024
 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
 Square-Bud Primrose (Calylophus berlandieri) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 2, 2010
 Square-Bud Primrose (Calylophus berlandieri) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 9, 2010
 Yellow skullcap-like flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 20, 2008
 Yellow zinnia flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 31, 2009
 Yellow flower of forsythia in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, February 27, 2009
 Yellow flower of aster family in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 25, 2010
 Big yellow iris flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 1, 2009
 Yellow iris flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 1, 2009
 Yellow flower of gourd in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, September 21, 2009
 Yellow flower of pea family in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 14, 2008
 Yellow Mexican hat flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 26, 2012
 Close up of yellow violet flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, February 12, 2009
 Yellow trumpet flower (Tecoma stans) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 18, 2008
 Yellow flower of Heteropterys (Heteropteris) angustifolia in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 12, 2008
 White and yellow iris flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 21, 2009
 Yellow Mexican hat flower (Ratibida columnifera) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 28, 2009
 Yellow flower of Sundrops (Turnera ulmifolia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, November 6, 2008
 Morning freeze on yellow violet flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 29, 2009
 Yellow flower of Heteropterys (Heteropteris) angustifolia in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 11, 2008
 Yellow thunbergia alata (Black-eyed susan vine) flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 18, 2008
 Little Yellow butterfly (Eurema lisa) on a flower of common dandelion in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 9, 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
 White flower with yellow center of Poached eggs plant (Limnanthes douglasii) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 11, 2010
 Yellow evening primrose (Oenothera) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 10, 2009
 Yellow evening primrose (Oenothera) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 24, 2010
 Yellow evening primrose (Oenothera) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 10, 2009
 Cut-leaved evening primrose flower (Oenothera laciniata) in Lick Creek Park. College Station, Texas, April 20, 2008
 Flower of showy evening primrose (Oenothera speciosa) in Wolf Pen Creek Park. College Station, Texas, April 24, 2019
 Marsh cypress with yellow foliage in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 16, 2013
 Poached eggs plant (Limnanthes douglasii) bearing white flower with yellow center in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 5, 2009
 Pistil of hibiscus flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 23, 2014
 Showy evening primrose (Oenothera speciosa) near Park Hudson Trail. College Station, Texas, July 24, 2014
 Dry zinnia flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 16, 2011
 Dry flower of zinnia in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 4, 2011
 Red hibiscus flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 14, 2008
 Red zinnia flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 11, 2009
 Red flower of rose mallow in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 29, 2008
 Pink hibiscus flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 14, 2008
 Blue hibiscus flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 21, 2008
 Flower of cut-leaved evening primrose (Oenothera laciniata) on Post Oak Trail in Lick Creek Park. College Station, Texas, April 12, 2024
 Flower of cut-leaved evening primrose (Oenothera laciniata) in dew on Post Oak Trail in Lick Creek Park. College Station, Texas, April 12, 2024
 Back lit showy evening primrose (Oenothera speciosa) near Park Hudson Trail. College Station, Texas, July 24, 2014
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