Red flowers of vervain (verbena) in Antique Rose Emporium. Independence, Texas, November 8, 2009
Verbena bonariensis (Vervain) flowers in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 26, 2016
Vervain flower in dew in Washington-on-the-Brazos State Historic Site, near Loop Trail. Washington, Texas, April 5, 2008
Vervain (Verbena) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 9, 2008
Rose vervain (Verbena canadensis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richardson, Texas, February 22, 2009
Verbena (vervain) in Huntsville State Park on Chinquapin Trail. Texas, April 3, 2010.
Veiny vervain (Verbena rigida) flowers in TAMU Holistic Garden in Texas A and M University. College Station, Texas, April 16, 2008
Verbena (vervain) flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 31, 2008
Texas vervain flower in Old Baylor Park. Independence, Texas, April 13, 2008
Verbena (vervain) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 13, 2009
Verbena (Vervain) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, October 14, 2012
Wright s vervain (Verbena wrightii) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 18, 2008
Close up of a cluster of flowers of rose vervain (Verbena canadensis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richardson, Texas, February 22, 2009
Slender vervain (verbena) flowers in Lick Creek Park. College Station, Texas, March 25, 2009
Blue Princess Verbena (vervain) in Antique Rose Emporium. Independence, Texas, May 13, 2012
Blue Princess verbena (Vervain) in Antique Rose Emporium. Independence, Texas, May 28, 2012
Texas vervain (verbena) in dew in Lake Bryan Park, on an unmarked trail on north-west side of the island. Bryan, Texas, April 14, 2009
Texas vervain (verbena) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 9, 2012
Violet flowers of Wright s vervain (Verbena wrightii)(?) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 9, 2009
Omnivorous platynota moth (Platynota rostrana) on verbena (vervain) in Antique Rose Emporium. Independence, Texas, May 28, 2012
Red verbena flowers of Peruvian mock vervain (Glandularia peruviana) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, July 20, 2013
Late blooming Dakota vervain (Verbena bipinnatifida) with freeze in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 17, 2012
Flower of Wright s vervain (Verbena wrightii) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, May 15, 2008
Verbena (vervain) in Antique Rose Emporium. Independence, Texas, May 13, 2012
Slender vervain (verbena) in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 20, 2013
Vervain (verbena) flower near Horseshoe Lake in Brazos Bend State Park. Needville, Texas, December 14, 2008
Vervain (Verbena) inflorescence in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 14, 2008
Pink vervain (Verbena) in Antique Rose Emporium. Independence, Texas, November 17, 2012
Slender vervain (verbena) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 28, 2014
Slender vervain (verbena) on Moore s Hill Outcrop at FM Road 3090 near Navasota. Texas, October 1, 2013
Slender vervain (verbena) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 24, 2009
Slender vervain (verbena) in Lick Creek Park. College Station, Texas, April 24, 2009
Texas(?) vervain (verbena) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 21, 2008
Salt Marsh Moth caterpillar (Estigmene acrea) feeding on Brazilian vervain (Verbena brasiliensis) in Lake Bryan Park. Bryan, Texas, May 21, 2010
Verbena (vervain) with Omnivorous platynota moth (Platynota rostrana) in Antique Rose Emporium. Independence, Texas, May 28, 2012
Dakota vervain (Verbena bipinnatifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 23, 2012
Slender vervain (verbena) near Birch Creek Unit of Somerville Lake State Park. Texas, July 19, 2014
Slender vervain (verbena) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 8, 2014
Verbena bonariensis (vervain) flowers in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 11, 2016
Blooming dwarf vervain (Glandularia pumila) in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
Rose vervain (Glandularia canadensis) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, March 1, 2019
Rose vervain (Glandularia canadensis) at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2019
Flowers of rose vervain (Glandularia canadensis) at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2019
Pink vervain (verbena) in Antique Rose Emporium. Independence, Texas, March 20, 2019
Vervain (Verbena) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 14, 2019
Rose vervain (Glandularia canadensis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
Flowers of rose vervain (Glandularia canadensis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
Rose vervain (Glandularia canadensis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
Vervain (Verbena) in Antique Rose Emporium. Independence, Texas, March 31, 2020
Verbena bonariensis (vervain) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 11, 2016
Slender vervain (verbena) in Birch Creek Unit of Lake Somerville State Park, Texas, July 22, 2018
Flower of rose vervain (Glandularia canadensis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, February 16, 2019
Rose vervain (Glandularia canadensis) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, March 1, 2019
Flowers of vervain (verbena) in Antique Rose Emporium. Independence, Texas, March 20, 2019
White and red vervain (verbena) in Antique Rose Emporium. Independence, Texas, March 20, 2019
Rose vervain (Glandularia canadensis) in dew on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
Rose vervain (Glandularia canadensis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
Slender vervain (verbena) in Lick Creek Park. College Station, Texas, May 4, 2020
Slender vervain (verbena) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 12, 2020
Slender vervain (verbena) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, June 14, 2020
Slender vervain (Verbena) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 4, 2020
Plant of white vervain (Verbena urticifolia) on Raccoon Run Trail in Lick Creek Park. College Station, Texas, August 28, 2020
Rose vervain (Glandularia canadensis) on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, March 28, 2021
Vervain (Verbena) in Antique Rose Emporium. Independence, Texas, April 14, 2021
Flowers of vervain (Verbena) in Antique Rose Emporium. Independence, Texas, April 14, 2021
Slender vervain (verbena) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 30, 2021
Blooming slender vervain (verbena) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 30, 2021
Brazilian vervain (Verbena brasiliensis) in Lick Creek Park. College Station, Texas, August 1, 2021
Brazilian vervain (Verbena brasiliensis) in Lick Creek Park. College Station, Texas, August 12, 2021
Slender vervain (verbena) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 17, 2021
Flowers of rose vervain (Glandularia canadensis) on Forest Service Road 231 near North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, March 5, 2022
Rose vervain (Glandularia canadensis) on Forest Service Road 231 near North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, March 5, 2022
Rose vervain (Glandularia canadensis) on Richards Loop Trail in Sam Houston National Forest. Texas, April 9, 2022
Rose vervain (Glandularia canadensis) on North Wilderness Trail in Sam Houston National Forest near Montgomery. Texas, April 14, 2022
Flowers of rose vervain (Glandularia canadensis) on North Wilderness Trail in Sam Houston National Forest near Montgomery. Texas, April 14, 2022
Slender vervain (verbena) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, June 19, 2022
Rosette of leaves of Brazilian vervain (Verbena) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 15, 2023
Rose vervain (Glandularia canadensis) on Richards Loop Trail in Sam Houston National Forest. Texas, February 28, 2023
Rose vervain (Glandularia canadensis) near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, March 11, 2023
Pink flowers of rose vervain (Glandularia canadensis) near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, March 11, 2023
Purpletop vervain (Verbena bonariensis) in Antique Rose Emporium. Independence, Texas, April 13, 2023
Slender vervain (verbena) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, May 7, 2023
Leaves of vervain (verbena) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, May 7, 2023
Dry plant of Brazilian vervain (Verbena brasiliensis) in Lick Creek Park. College Station, Texas, September 8, 2023
White vervain (Verbena urticifolia) in Lick Creek Park. College Station, Texas, September 13, 2023
Rose vervain (Glandularia canadensis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 3, 2024
Blooming rose vervain (Glandularia canadensis) on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, March 5, 2024
Rose vervain (Glandularia canadensis) on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
Blooming rose vervain (Glandularia canadensis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
Slender vervain (Verbena rigida) on road FS203 near Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
Texas vervain (Verbena halei) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, April 14, 2024
Vervain (Verbena bonariensis) in Antique Rose Emporium. Independence, Texas, April 20, 2024
Slender vervain (verbena) with a crab spider when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
Flowers of slender vervain (verbena) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 28, 2024
Rose vervain (Glandularia canadensis) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Richards Loop Trail in Sam Houston National Forest. Texas, October 20, 2024
Rosettes of leaves of Brazilian vervain (Verbena) on Lick Creek Greenway Trail. College Station, Texas, February 4, 2025
Rose vervain (Glandularia canadensis) on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, March 13, 2025
A robust winter basal rosette of Texas vervain (Verbena halei) growing on the sandy upper shore of Lake Somerville, Texas, February 28, 2026
Flowers of rose vervain (Glandularia canadensis) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest near Montgomery. Texas, March 1, 2026
Verbena (vervain) in Antique Rose Emporium. Independence, Texas, March 5, 2026
Rose vervain (Glandularia canadensis) on Richards Loop Trail in Sam Houston National Forest. Montgomery County, Texas, March 22, 2026
Slender vervain (verbena) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Birch Creek Unit of Somerville Lake State Park. Texas, May 16, 2026
