White bishops weed-like flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 13, 2008
Squaw-weed flower (Senecio ampullaceus) in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2008
Cylindrical cluster of white flowers of pickerel weed (Pontederia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, June 7, 2008
Squaw-weed flowers in Washington-on-the-Brazos Historic Site. Washington, Texas, March 30, 2008
Opening flowers of Squaw-weed (Senecio) taken from a lawn outside of apartments on George Bush Drive. College Station, Texas, March 13, 2009
Flies sitting on yellow flowers of Ochradenus baccatus (Pearl Plant, Taily Weed, local name Gurdhi or qurDi) in a runnel north from Dukhan in western Qatar, March 3, 2014
Squaw-weed flower (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 5, 2008
Squaw-weed flowers in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, March 1, 2009
Close-up of opening flowers of Squaw-weed (Senecio) taken from a lawn outside of apartments on George Bush Drive. College Station, Texas, March 13, 2009
Creeping flowers of railroad vine (Ipomoea pes-caprae, the beach morning glory or Goat s foot) and pillow weeds colonizing the dunes of Ship Island. Mississippi, October 8, 2006
Black eyed susans (Rudbeckia hirta) and Mock bishop s weed (Ptilimnium nuttallii) flowers near Post Oak Trail in Lick Creek Park. College Station, Texas, May 27, 2007
Green blister(?) beetle on yellow flowers of Ochradenus baccatus (Pearl Plant, Taily Weed, local name Gurdhi or qurDi) in a runnel north from Dukhan in western Qatar, March 3, 2014
Flower buds of Cutleaf groundsel (butterweed, squaw weed, Senecio) on Deer Run Trail in Lick Creek Park. College Station, Texas, April 29, 2009
Prostrate weed of khakiweed (washerwoman, mat chaff flower, Alternanthera caracasana) with prickly seeds taken from a lawn. College Station, Texas, November 23, 2010
Flowers of Mock Bishop s Weed (Ptilimnium nuttali) in Lick Creek Park. College Station, Texas, May 20, 2014
Flower of bell weed (Ruellia prostrata) growing among kalanchoe like succulent plants in a park at Al Markhiya Street near a corner with Onaiza. Doha, Qatar, May 2, 2015
Close-up of Squaw-weed (Senecio) flower buds taken from a lawn outside of apartments on George Bush Drive. College Station, Texas, March 13, 2009
Whitish, papery ball-shaped flower of Alligator weed (Alternanthera philoxeroides) in Brazos County Park. Bryan, Texas, May 23, 2012
Side view of a flower of bell weed (Ruellia prostrata) taken from Al Bidda Street near crossing with Al Adaid in West Bay. Doha, Qatar, April 28, 2015
Flower of Alligator weed (Alternanthera philoxerpides) near a pond in Central Park. College Station, Texas, June 15, 2012
Flowers of bell weed (Ruellia prostrata) taken from Al Bidda Street near crossing with Al Adaid in West Bay. Doha, Qatar, April 28, 2015
Flowers of bell weed (Ruellia prostrata) on white background taken from Al Bidda Street near crossing with Al Adaid in West Bay. Doha, Qatar, April 28, 2015
Black eyed susan flowers (Rudbeckia hirta) with Mock bishop s weed (Ptilimnium nuttallii) near Post Oak Trail in Lick Creek Park. College Station, Texas, May 27, 2007
Cone-shaped flowers of pineapple weed (Matricaria discoidea, Chamomilla suaveolens) on roadside in fields west from Deviatkino, 1 mile north from Saint Petersburg. Russia, July 26, 2012
Black-eyed susan and Mock Bishop s Weed flowers in Lick Creek Park. College Station, Texas, May 7, 2012
Close up of a flower of Potato-weed (solanum) in Lick Creek Park. College Station, Texas, July 7, 2012
White flower of Potato-weed (solanum) in Lick Creek Park. College Station, Texas, July 24, 2013
Fly on yellow flowers of Ochradenus baccatus (Pearl Plant, Taily Weed, local name Gurdhi or qurDi) in a runnel north from Dukhan in western Qatar, March 3, 2014
Yellow flowers of Ochradenus baccatus (Pearl Plant, Taily Weed, local name Gurdhi or qurDi) in a runnel north from Dukhan in western Qatar, March 3, 2014
Green fly sitting on yellow flowers of Ochradenus baccatus (Pearl Plant, Taily Weed, local name Gurdhi or qurDi) in a runnel north from Dukhan in western Qatar, March 3, 2014
Flowers of Ochradenus baccatus (Pearl Plant, Taily Weed, local name Gurdhi or qurDi) in a runnel north from Dukhan in western Qatar, March 3, 2014
Flower buds of Rosin Weed (Cressa cretica, local names Senebiera, didyma, nedaiwa) taken from northern corner of crossing of Al Corniche and Al Markhiya streets in West Bay. Doha, Qatar, March 22, 2014
Flowers of Ochradenus baccatus (Pearl Plant, Taily Weed, local name Gurdhi or qurDi) near Al Luqta Street, opposite to Education City. Doha, Qatar, April 11, 2014
Flowers of Alligator weed (Alternanthera philoxeroides) near a pond in Central Park. College Station, Texas, July 30, 2014
Blue flowers of Self-heal (carpenter-weed, Prunella vulgaris, Russian name Chernogolovka) in Old Sylvia in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, July 19, 2015
White flowers of hairy bittercress weed (Cardamine hirsuta) in Lick Creek Park. College Station, Texas, January 20, 2020
Parasol flower head of false bishop s weed (Ammi majus) in Lick Creek Park. College Station, Texas, May 17, 2018
Flowers of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 9, 2019
