 Close-up of male flowers of Houston Meadow-rue (Thalictrum texanum) in Washington Cemetery. Washington, Texas, January 18, 2020
 Male flowers of Houston meadow-rue (Thalictrum texanum) in Washington Cemetery. Washington County, Texas, January 30, 2022
 Male flowers and fruits of Houston Meadow-rue (Thalictrum texanum) in open area left from the gate in Washington Cemetery. Washington, Texas, March 27, 2019
 Houston Meadow-rue (Thalictrum texanum) in Washington Cemetery. Washington, Texas, January 5, 2020
 Houston Meadow-rue (Thalictrum texanum) in dew in Washington Cemetery. Washington, Texas, January 5, 2020
 Staminate flowers of Houston meadow-rue (Thalictrum texanum) in Washington Cemetery. Washington County, Texas, January 30, 2022
 Blooming Houston Meadow-rue (Thalictrum texanum) in Washington Cemetery. Washington, Texas, January 18, 2020
 Close-up of Houston Meadow-rue (Thalictrum texanum) in Washington Cemetery. Washington, Texas, January 18, 2020
 Leaves of Houston Meadow-rue (Thalictrum texanum) in Washington Cemetery. Washington, Texas, January 18, 2020
 Carpet of Houston Meadow-rue (Thalictrum texanum) in Washington Cemetery. Washington, Texas, January 18, 2020
 Close-up of staminate flowers of Houston meadow-rue (Thalictrum texanum) in Washington Cemetery. Washington County, Texas, January 30, 2022
 Tiny purple female flowers of Houston meadow-rue (Thalictrum texanum) in Washington Cemetery. Washington County, Texas, January 30, 2022
 Houston Meadow-rue (Thalictrum texanum) that looks as maiden hair fern near the bordering bushes in Washington Cemetery. Washington, Texas, January 5, 2020
 Houston Meadow-rue (Thalictrum texanum) in Washington Cemetery. Washington, Texas, January 7, 2024
 Houston Meadow-rue (Thalictrum texanum) in Washington Cemetery. Washington, Texas, January 24, 2021
 Houston Meadow-rue (Thalictrum texanum) on a tomb in Washington Cemetery. Washington, Texas, January 7, 2024
 Leaves Houston Meadow-rue (Thalictrum texanum) in dew in Washington Cemetery. Washington, Texas, January 7, 2024
 Houston meadow-rue (Thalictrum texanum) in dew in Washington Cemetery. Washington County, Texas, January 30, 2022
 Leaves of Houston meadow-rue (Thalictrum texanum) in Washington Cemetery. Washington County, Texas, January 30, 2022
 Fresh leaves of Houston Meadow-rue (Thalictrum texanum) in Washington Cemetery. Washington, Texas, January 7, 2024
 Houston meadow-rue (Thalictrum texanum) with frost in Washington Cemetery. Washington County, Texas, January 30, 2022
 Petal of Houston meadow-rue (Thalictrum texanum) under a microscope, collected in Washington Cemetery. Washington County, Texas, January 30, 2022
 Pollen of Houston meadow-rue (Thalictrum texanum) under a microscope, collected in Washington Cemetery. Washington County, Texas, January 30, 2022
 Leaves, flowers and fruits of Houston Meadow-rue (Thalictrum texanum) in open area left from the gate in Washington Cemetery. Washington, Texas, March 27, 2019
 Female flowers and fruits of Houston Meadow-rue (Thalictrum texanum) with a bluet for comparison in open area left from the gate in Washington Cemetery. Washington, Texas, March 27, 2019
 Pollen grains in iodine solution of Houston meadow-rue (Thalictrum texanum) under a microscope, collected in Washington Cemetery. Washington County, Texas, January 30, 2022
 Houston Meadow-rue (Thalictrum texanum) in dew in Washington Cemetery. Washington, Texas, March 27, 2019
 Houston Meadow-rue (Thalictrum texanum) with yellow star-grass in Washington Cemetery. Washington, Texas, March 27, 2019
 Houston Meadow-rue (Thalictrum texanum) with field madder near the border in Washington Cemetery. Washington, Texas, March 27, 2019
 Fruits of Houston Meadow-rue (Thalictrum texanum) in open area left from the gate in Washington Cemetery. Washington, Texas, March 27, 2019
 Houston Meadow-rue (Thalictrum texanum) that looks as maiden hair fern near the bordering bushes in Washington Cemetery. Washington, Texas, March 27, 2019
 Leaf and seeds of Houston Meadow-rue (Thalictrum texanum) in open area left from the gate in Washington Cemetery. Washington, Texas, March 27, 2019
 Houston Meadow-rue (Thalictrum texanum) in a moved area of Cemetery of St. Holland Baptist Church near Navasota. Texas, March 27, 2019
 Inflorescence of woolly croton (hogwort, Croton capitatus) with swollen ovaries of female flowers and creamy stamens on male flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 3, 2008
 Snow-on-the-prairie (Euphorbia bicolor) with linear floral leaves having white margins and small fan-like male flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 3, 2008
 Male flowers of creeping lovegrass (Eragrostis reptans, Neeragrostis reptans) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 5, 2019
 Creeping lovegrass (Eragrostis reptans, Neeragrostis reptans) with male flowers in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2019
 Blue flowers of spiderwort (Tradescantia) on a lawn near Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
 Rosette of leaves of some plant in Washington Cemetery. Washington, Texas, January 7, 2024
 Rosette of leaves of a buttercup(?) in Washington Cemetery. Washington, Texas, January 7, 2024
 Sear shells on a tomb in Washington Cemetery. Washington, Texas, January 26, 2013
 Winter rosette of sow thistle in Washington Cemetery. Washington, Texas, January 26, 2013
 Winter rosette of sow thistle in dew in Washington Cemetery. Washington, Texas, January 26, 2013
 Marble tombstone in Washington Cemetery. Washington, Texas, January 26, 2013
 Remains of tombs in Washington Cemetery. Washington, Texas, January 26, 2013
 Shoot of bedstraw (Galium) in Washington Cemetery. Washington County, Texas, January 30, 2022
 Winter rosette of sow thistle (Sonchus oleraceus) in Washington Cemetery. Washington, Texas, January 7, 2024
 Washington Cemetery Road. Washington, Texas, January 26, 2013
 Old tombs in Washington Cemetery. Washington, Texas, January 26, 2013
 A tree in Washington Cemetery. Washington, Texas, January 26, 2013
 Carpet of leaves of Carolina ponysfoot (Dichondra carolinensis) in Washington Cemetery. Washington, Texas, January 7, 2024
 Some pale green crustose lichen on a marble tomb in Washington Cemetery. Washington, Texas, January 12, 2019
 Meadow-rue (Thalictrum) in dew near Boswell Creek crossing on Four Notch Loop Trail of Sam Houston National Forest near Huntsville. Texas, January 23, 2021
 Flower bud of Texas thistle (Cirsium texanum) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Flower buds of Texas thistle (Cirsium texanum) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 3, 2021
 Phlox flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Purple alyssum like flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2020
 White flowers of dewberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 Red flowers of firewheel (Gaillardia pulchella) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Orange lantana flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Alyssum like purple flowers and fruits in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2020
 Amaranth flowers near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Blue Ruellia flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 12, 2020
 Flowers of bluebonnet (Lupinus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 Mexican hat flowers (Ratibida columnaris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Flowers of largebracted plantain (Plantago aristata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2020
 Flowers of rattlebush (Sesbania drummondii) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Yellow flowers of prickly pears (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Alyssum like flowers on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Fourleaf allseed (Polycarpon tetraphyllum) with flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2020
 Flowers of spotted beebalm (Monarda punctata(?)) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2020
 Blue flowers of spiderwort (Tradescantia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 Meadow with coreopsis in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 28, 2014
 Meadow with bluebonnet in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 5, 2008
 Flowers sand phlox in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 30, 2022
 Flowers of Meadow Rue (Thalictrum) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 9, 2014
 Spiderwort (tradescantia) on a meadow in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2019
 Meadow pink (Sabatia campestris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2009
 Flowers of smartweed (Persicaria, Polygonum) in a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 18, 2020
 Flowers of Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Close-up of Alissum like flowers on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Purple Alyssum like flowers on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Red flowers of Indian paintbrush (Castilleja indivisa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Flat winter rosettes of Texas dandelion (Pyrrhopappus pauciflorus) in Washington Cemetery. Washington, Texas, January 7, 2024
 Brown winter rosette of Texas dandelion (Pyrrhopappus pauciflorus) in Washington Cemetery. Washington, Texas, January 7, 2024
 Horse on a meadow in Barrington farm in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 27, 2008
 Small Nolanea mushroom on a meadow in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2019
 Flowers of foxtail millet grass (Setaria italica) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Emerging flowers of Snow-on-the-prairie (Euphorbia bicolor) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Mexican hat flowers (Ratibida columnaris) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Flowers of giant reed (Arundo donax) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 27, 2020
 Flowers of white heath aster (Symphyotrichum ericoides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 18, 2020
 Blue flowers of stemless spiderwort (Tradescantia subacaulis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2020
 Purple flowers of Meadow Rue (Thalictrum) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 27, 2009
 Purple flowers of Meadow Rue (Thalictrum) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 23, 2009
 White flowers of Meadow Rue (Thalictrum) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 13, 2014
 Pink flowers of Meadow Rue (Thalictrum) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 13, 2014
 Pink flowers of Meadow Rue (Thalictrum) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 4, 2017
 White flowers of meadow rue (Thalictrum, Russian name Vasilistnik) near Novinka, 50 miles south from Saint Petersburg. Russia, June 14, 2014
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