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Texas thistle

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Giant Swallowtails (Papilio cresphontes) nectaring on a thistle flower on Lost Pines Trail in Bastrop State Park. Bastrop, Texas, May 2, 2010
Opening thistle flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2012
Fluffy seeds of thistle (Cirsium) in Lick Creek Park. College Station, Texas, May 20, 2014
Flower of a thistle (Cirsium engelmannii(?)) near Deer Run Trail in Lick Creek Park. College Station, Texas, June 8, 2008
Purple thistle flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 27, 2008
Seed head of sow thistle (Sonchus) with fluffy pappus attached to seed-bearing achenes in TAMU Holistic Garden in Texas A and M University. College Station, Texas, January 31, 2009
Flower bud of Artichoke thistle (Cynara cardunculus) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, May 15, 2010
Thistle flower near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2008
Painted lady butterfly (Vanessa virginiensis) on a thistle on Lost Pines Trail in Bastrop State Park. Bastrop, Texas, May 2, 2010
Pointed, leathery green bracts fold around a purple-blue immature flower head of Artichoke thistle (Cynara cardunculus), in TAMU Holistic Garden in Texas A and M University. College Station, Texas, May 14, 2009
Flower of summer-blooming thistle (Cirsium engelmannii) in Lick Creek Park, on Deer Run Trail. College Station, Texas, June 21, 2008
Blooming thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, June 22, 2012
Emerging flower from a large head of globe artichoke thistle (Cynara cardunculus) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, May 11, 2009
Katydid on seeds of thistle in Lick Creek Park. College Station, Texas, July 15, 2014
Small thistle like flower in Lemontree Park. College Station, Texas, July 27, 2014
Texas thistle at a fence near Road 1155, north-east from Brenham, west from Dillard Road. Texas, June 2, 2007
Frozen sow thistle (Sonchus arvensis) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, December 11, 2012
Echinops sphaerocephalus (globe thistle) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, June 21, 2008
Thistle flower in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, July 12, 2013
Flower of thistle in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2009
Blue thistle on a trail in Sam Houston National Forest, near Road 149, near Richards. Texas, May 15, 2010
Flower head of field thistle in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2010
Texas thistle flowers near Road 1155, north-east from Brenham, west from Dillard Road. Texas, June 2, 2007
Opening spherical seed head of a thistle in Lick Creek Park. College Station, Texas, July 30, 2009
Thistle flower in Old Baylor Park in Independence. Texas, May 3, 2009
Texas thistle at a fence at Road 1155, north-east from Brenham, west from Dillard Road. Texas, June 1, 2008
Texas thistle at roadside of Road 1155, north-east from Brenham, west from Dillard Road. Texas, June 1, 2008
Globe thistle (Echinops sphaerocephalus) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, June 28, 2008
Sow thistle in TAMU Holistic Garden in Texas A and M University. College Station, Texas, January 2, 2009
Artichoke thistle (Cynara cardunculus) flowers in TAMU Holistic Garden in Texas A and M University. College Station, Texas, May 26, 2009
Yellow thistle (Bull thistle, Cirsium horridulum) in Lake Bryan Park. Bryan, Texas, March 20, 2010.
Small thistle like flower in a ranch at 7278 Batts Ferry Road. College Station, Texas, August 1, 2014
Thistle flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 27, 2008
Large flower head of Artichoke thistle (Cynara cardunculus), in TAMU Holistic Garden in Texas A and M University. College Station, Texas, May 14, 2009
Field of Texas thistle near Road FM 390 south from Lake Somerville. Texas, May 6, 2012
Sow thistle (Sonchus oleraceus) flowers in TAMU Holistic Garden in Texas A and M University. College Station, Texas, January 10, 2009
Sow thistle (Sonchus arvensis) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, February 8, 2009
Large flower of globe artichoke thistle (Cynara cardunculus) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, May 11, 2009
Thistle flower in Lick Creek Park. College Station, Texas, July 17, 2009
Globular flower bud of a thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, June 10, 2012
Thistle (Cirsium engelmannii) heads in Lick Creek Park. College Station, Texas, June 22, 2012
Seed head of sow thistle (Sonchus) with fluffy pappus attached to seed-bearing achenes in TAMU Holistic Garden in Texas A and M University. College Station, Texas, February 22, 2009
Butterfly on a thistle in Lake Bryan Park. Bryan, Texas, June 13, 2012
Blue thistle like flower in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, August 7, 2014
Blister beetle in genus Nemognatha on thistle flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 27, 2008
Opening flowers of sow thistle (Sonchus oleraceus) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 24, 2009
Thistle with seeds and a green lynx spider in Lick Creek Park. College Station, Texas, July 30, 2009
Flower longhorned beetle Strange Virile Bycid (Strangalia virilis) mimicking as a wasp on a thistle in Lick Creek Park. College Station, Texas, July 13, 2008
Flowers of sow thistle (Sonchus oleraceus) on a lawn in TAMU Holistic Garden in Texas A and M University. College Station, Texas, January 10, 2009
Blooming thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, June 26, 2012
Bud of basket flower (a thistle) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, May 17, 2009
Blister beetle (Meloidae) in genus Nemognatha on a flower of thistle in Old Baylor Park. Independence, Texas, May 10, 2008
Blister beetles (Meloidae) in genus Nemognatha on thistle flower in Old Baylor Park. Independence, Texas, May 9, 2009
Blister beetle (Meloidae) in genus Nemognatha on thistle flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2009
Sow thistle seedling near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 20, 2013
Blooming thistle (Cirsium engelmannii?) on Iron Bridge Trail in Lick Creek Park. College Station, Texas, July 30, 2008
Thistle flower (Cirsium) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2009
Summer-blooming thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, July 3, 2014
Winter rosette of a thistle in Bastrop State Park. Bastrop, Texas, January 5, 2013
Flower crab spider (Misumenops celer(?)) eating a skipper butterfly on a thistle in Lick Creek Park. College Station, Texas, July 30, 2009
Thistle (Cirsium engelmannii) on sewage line right of way in Lick Creek Park. College Station, Texas, July 7, 2012
Crab spider on a thistle in Lick Creek Park. College Station, Texas, July 7, 2012
Yellow thistle (Bull thistle, Cirsium horridulum) on Whitman Road, near Washington. Texas, March 22, 2009
Yellow spiny thistle (Bull thistle, Cirsium horridulum) at sunrise in Lake Bryan Park. Bryan, Texas, April 13, 2010
Blister beetles in genus Nemognatha on thistle flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2008
Thistle (Cirsium engelmannii) flower buds in Lick Creek Park. College Station, Texas, June 10, 2012
Winter rosette of sow thistle in Washington Cemetery. Washington, Texas, January 26, 2013
Flower of thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, June 22, 2012
"Exploding" seeds of a thistle in Lick Creek Park. College Station, Texas, July 30, 2009
Flower bud of a thistle on Iron Bridge in Lick Creek Park. College Station, Texas, June 8, 2010
Opening thistle flower in Lick Creek Park. College Station, Texas, July 17, 2009
Crab like spider in a thistle in Lick Creek Park. College Station, Texas, July 17, 2009
Sow thistle in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, January 21, 2013
Frostweed and a thistle on Racoon Run Trail in Lick Creek Park. College Station, Texas, July 17, 2013
Winter rosette of sow thistle in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 2, 2012
Rosette of sow thistle (Sonchus oleraceus) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 20, 2013
Sow thistle (Sonchus) in freeze in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 3, 2014
Close up of "exploding" seeds of a thistle in Lick Creek Park. College Station, Texas, July 30, 2009
Thorny winter rosette of a thistle in Bastrop State Park. Bastrop, Texas, January 5, 2013
Winter rosette of sow thistle in dew in Washington Cemetery. Washington, Texas, January 26, 2013
Flower-feeding scarab (Euphoria kerni(?), adult) in a thistle on Lost Pines Trail in Bastrop State Park. Bastrop, Texas, May 2, 2010
Rosette and a seedling of milk thistle (Silybum marianum, Carduus marianus) at Lake Spur Trail in Bastrop State Park. Bastrop, Texas, December 25, 2011
Sow thistle (Sonchus arvensis) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 21, 2012
Spiny globular flower bud of a thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, June 10, 2012
Thistle (Cirsium engelmannii) flower bud in Lick Creek Park. College Station, Texas, June 10, 2012
Close up of a thistle (Cirsium engelmannii) flower bud in Lick Creek Park. College Station, Texas, June 10, 2012
Spiny flower bud of a thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, June 20, 2012
Close up of a flower of thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, June 22, 2012
Flower of thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, June 26, 2012
Thistle (Cirsium engelmannii) flower in Lick Creek Park. College Station, Texas, June 30, 2012
Thistle flower heads (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, July 7, 2012
Florets of a thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, July 7, 2012
Thistle (Cirsium) in Bastrop State Park. Bastrop, Texas, September 15, 2012
Winter rosette of thistle in Washington Cemetery. Washington, Texas, December 8, 2012
Winter rosette of milk(?) thistle in Birch Creek Unit of Somerville Lake State Park. Texas, December 22, 2012
Winter rosette of sow thistle near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 27, 2013
Small winter rosette of sow thistle near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 27, 2013
Winter rosette of sow thistle (Sonchus) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 27, 2013
Sow thistle 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
Thistle flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 17, 2014
Flower of summer-blooming thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, July 1, 2014
Flower bud of summer-blooming thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, July 1, 2014
Blooming summer-blooming thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, July 3, 2014
Summer-blooming thistle flower (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, July 10, 2014
Summer-blooming thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, July 10, 2014
Flower bud of summer-blooming thistle (Cirsium engelmannii) in Lick Creek Park. College Station, Texas, July 10, 2014
Thistle flower Park Hudson Trail. College Station, Texas, July 14, 2014
Small fly on a thistle Park Hudson Trail. College Station, Texas, July 14, 2014
Seeds of thistle in Lick Creek Park. College Station, Texas, July 15, 2014
Bud of thistle in Lick Creek Park. College Station, Texas, July 15, 2014
Flower of summer thistle in Lick Creek Park. College Station, Texas, July 15, 2014
Blooming thistle in Lick Creek Park. College Station, Texas, July 15, 2014
Thistle like flower in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, July 16, 2014
Flower bud of summer thistle in Lick Creek Park. College Station, Texas, July 22, 2014
Flower of summer thistle in Lick Creek Park. College Station, Texas, July 22, 2014
Bumblebee on thistle in Lick Creek Park. College Station, Texas, July 26, 2014
Thistle like flower in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, August 7, 2014
Close up of a thistle like flower in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, August 7, 2014
Brown beetle on a thistle flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 12, 2014
Crab spider on a thistle Robinson Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 12, 2014

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