Blue butterfly bush flowers (blue glory bower, Rotheca myricoides, Clerodendrum ugandense) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, June 20, 2008
Blue flowers of creeping navelwort (Omphalodes verna, Russian name pupochnik) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 27, 2017
Blue and red flowers of forget-me-not (Myosotis, Russian name Nezabudka) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 5, 2017
Blue striped flowers of geranium in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 4, 2017
Blue flower of gentian speedwell (Veronica gentianoides) in Peter the Great Botanical Garden of Komarov Botanical Institute. Saint Petersburg, Russia, May 18, 2019
Billbergia nutans (bromeliad, Queen s Tears) with pink, blue and green flowers in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, March 14, 2009
Small blue flowers of Wild Hyancinth (Hyacinthus orientalis) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 27, 2009
Flowers of blue asters in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, August 22, 2013
Flowers of Blue curls (Fiddleneck, Phacelia congesta) in McKinney Falls State Park near Austin. Texas, May 10, 2009
Blue Spotted Flower Beetle (Stephanorrhina guttata) in Zoological Museum. Saint Petersburg, Russia, February 15, 2013
Blue flowers of golden dewdrop (Duranta erecta) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, April 29, 2008
Close up of a flower of Blue pea vine (butterfly pea, Clitoria ternatea) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, September 6, 2009
Blue morning glory (Ipomoea indica) flowers in TAMU Holistic Garden in Texas A and M University. College Station, Texas, May 13, 2008
Blue flowers of lupin in TAMU Holistic Garden in Texas A and M University. College Station, Texas, January 24, 2009
Blue star flowers of Aristea ecklonii in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, May 2, 2009
Potted plant Fan flower Scaevola aemula Whirlwind Blue in Antique Rose Emporium in Independence. Texas, May 3, 2009
Blue pointed flowers of felwort (Swertia perennis) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
Blue flowers of creeping navelwort (Omphalodes verna, Russian name pupochnik) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 10, 2016
Blue flower of Snapdragon vine (Maurandya antirrhiniflora) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 17, 2009
Blue linum (flax) flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 24, 2008
Purple and blue passiflora alata flower in TAMU Holistic Garden in Texas A and M University. College Station, Texas, May 4, 2008
Blue flower of delphinium(?) in TAMU Horticultural Gardens in Texas A&M University. College Station, Texas, March 5, 2009
Flowers of Blue eyed grass (Sisyrinchium), backlit, on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
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
Freesia laxa subsp. azurea (a form with blue flowers) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, January 11, 2009
Baby blue eyes flower (flannel breeches, Nemophila phacelioides) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2008
Back-lit flowers of Blue morning glory (Ipomoea indica) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, May 6, 2009
Baby blue eyes flower in dew in Washington-on-the-Brazos Historic Site. Washington, Texas, March 30, 2008
6-petaled star flowers of Blue eyed grass (Sisyrinchium) in Lick Creek Park, on Post Oak Trail. College Station, Texas, March 31, 2008
Flowers of Blue eyed grass (Sisyrinchium) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
Tiny flowers of blue field madder (spurwort, Sherardia arvensis) on Racoon Run Trail in Lick Creek Park. College Station, Texas, April 2, 2009
Blue flowers of spiderwort (Tradescantia) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 10, 2010
Blue flowers of lily family in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 29, 2017
Blue primrose flowers (Primula) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 22, 2017
Blue morning glory (Ipomoea indica) flowers in TAMU Holistic Garden in Texas A and M University. College Station, Texas, May 9, 2008
Blue flowers of forget-me-not (Myosotis) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 23, 2009
Blue milkwort flower of sweet pea shrub (Polygala x dalmaisiana) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, July 20, 2013
Blue and white flowers of Branched Broomrape (hemp broomrape, Orobanche ramosa) on a lawn near Hensel Drive. College Station, Texas, April 12, 2010
Close up of blue flower of lily family in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 8, 2011
Opening flower of blue waterleaf (Hydrolea ovata) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 20, 2008
Blue flower of Purple dewdrop (Lobelia puberula) on Little Lake Creek Loop Trail in Sam Houston National Forest, with 2 short ear-like upper petals and 3 broad wedge-shaped lower petals. Huntsville, Texas, September 14, 2008
Flower of Baby blue eyes (Nemophila phacelioides) in Birch Creek Unit of Lake Somerville State Park, Texas, April 29, 2012
Some blue flowers in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 26, 2014
Blue morning glory (Ipomoea indica) flowers in TAMU Holistic Garden in Texas A and M University. College Station, Texas, May 9, 2008
Blue flowers of Cup flower (Nierembergia gracilis Starry Eyes ) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, June 11, 2010
Tiny blue flowers of false pennyroyal (pennyroyal bluecurls, fluxweed, Trichostema brachiatum) on Moore s Hill Outcrop at FM Road 3090 near Navasota. Texas, September 23, 2012
Waterleaf like blue flowers in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, February 8, 2009
Small blue flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 6, 2008
Blue passion flower (passiflora) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, April 30, 2009
Blue iris flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 13, 2014
Blue beardtongues like flowers in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 9, 2014
Opening flower of blue waterleaf (Hydrolea ovata) in Lick Creek Park, on Iron Bridge Trail. College Station, July 6, 2008
Small blue flowers of Stachytarpheta (Porterweed, Brazilian Tea) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 17, 2008
Flowers of blue bugle (Ajuga reptans) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 26, 2014
Blue flowers of geranium in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 9, 2014
Blue flowers of squill (Scilla armena) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 2, 2017
Baby blue eyes flowers in Nails Creek Park on Lake Somerville. Texas, April 13, 2008
6-petaled star flower of Blue eyed grass (Sisyrinchium) south from Lake Somerville. Texas, March 29, 2008
Blue sage flowers in TAMU Holistic Garden in Texas A and M University. College Station, Texas, February 1, 2009
Blue flowers of Freesia laxa subsp. azurea in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, February 8, 2009
Blue aster flowers in dew on Moore s Hill Outcrop at FM Road 3090 near Navasota. Texas, October 20, 2013
Blue comfrey flowers (beinwell, Symphytum caucasicum, Russian name Okopnik) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 9, 2014
Deep blue spiderwort (tradescantia) flower in Lick Creek Park. College Station, Texas, April 24, 2009
Monarch butterflies on blue plumbago flowers in Antique Rose Emporium. Independence, Texas, November 8, 2009
Blue flower of lily family in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 8, 2011
Blue flower of Spiderwort (Tradescantia) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
Flower of Blue pea vine (butterfly pea, Clitoria ternatea) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, October 15, 2008
Blue flowers of spiderwort (tradescantia) in Lick Creek Park. College Station, Texas, May 15, 2009
Blue flower of Brazilian snapdragon (Amazon blue, Otacanthus caeruleus) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 6, 2008
Flower of Southern blue flag (Iris virginica) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 1, 2009
Blue flower of morning glory (Ipomoea) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
Blue flowers of lily family in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 10, 2016
Blue flowers of beach pea (Lathyrus maritimus, Russian name Cheena) in Solnechnoe, north-west from Saint Petersburg. Russia, July 8, 2016
Blue Lobelia flowers in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, August 14, 2016
Blue anemone flowers (Anemone nemorosa var. coerulea Robinsoniana , Russian name Vetrenitsa) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 22, 2017
Blue flower of viola in Lisiy Nos, west from Saint Petersburg. Russia, June 1, 2017
Deep blue flowers of mint(?) family in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 4, 2017
Blue skullcap flowers (Scutellaria) on north shore of Lake Somerville near Birch Creek Unit of Somerville Lake State Park. Texas, April 15, 2018
Flowers of blue phacelia (Phacelia patuliflora)(?) in Old Bailor park. Independence, Texas, February 27, 2019
Central part of a blue iris flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 23, 2009
Blue flowers of mistflower (Eupatorium coelestinum, Wild ageratum) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 26, 2009
Blue flowers of Angelonia Serena Purple in Antique Rose Emporium. Independence, Texas, April 19, 2009
Blue iris flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 23, 2009
Blue flower of Benghal dayflower (tropical spiderwort, Commelina benghalensis) on Al Rabiya Street in Al Jebailat area near West Bay. Doha, Qatar, May 7, 2015
Blue flowers of Plumbago auriculata in TAMU Holistic Garden in Texas A and M University. College Station, Texas. College Station, June 14, 2008
Blue trumpet flowers of Iochroma warscewiczii (Purple bells) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, October 7, 2008
Flower of blue-eyed grass with immature katydid in Lick Creek Park, on Post Oak Trail. College Station, Texas, March 31, 2008
Baby blue eyes flower in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 5, 2008
Blue plumbago flowers (Plumbago auriculata) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, May 31, 2008
Blue lobelia like flower in TAMU Holistic Garden in Texas A and M University. College Station, Texas, May 31, 2008
Blue flowers with coiled stamens of Bastard pennyroyal (Trichostema dichotomum) on Little Lake Creek Loop Trail in Sam Houston National Forest. Huntsville, Texas, September 14, 2008
Blue flower on a bush Holmskioldia taitensis, Holmskoldia tettensis, Karomia speciosa (Tahitian Hat) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, May 31, 2008
Blue-purple 6-petaled flowers in a cylindrical cluster of Pickerelweed (Pontederia cordata) in TAMU Horticultural Gardens in Texas A and M University, with spindle-like bilobed yellow spots on the middle upper petals. College Station, Texas, June 7, 2008
Tiny blue flower of corn speedwell (Veronica arvensis) on a lawn in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 9, 2009
Blue flower of Lignum Vitae (Gaiac tree, Guaiacum sanctum) in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
Blue flower bud of a plant of lily family in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 14, 2011
Blue spiderwort (tradescantia) flowers in Lick Creek Park. College Station, Texas, June 8, 2008
Blue flower of downy lobelia (Purple dewdrop, Lobelia puberula) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, August 10, 2008
Blue petunia flower in TAMU Holistic Garden in Texas A and M University. College Station, Texas, February 1, 2009
Blue flowers of forget-me-not (Myosotis palustris, Russian name Nezabudka) in Sosnovka Park in Saint Petersburg. Russia, June 24, 2010
Blue flowers of Black Rampion (Phyteuma nigrum, Russian name Kolnik) near Angliyskaya Alley in Upper Park. Oranienbaum (Lomonosov), a suburb of Saint Petersburg, Russia, June 22, 2014
Blue flower of Commelina on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014
Blue flower of anemone (Anemone nemorosa var. coerulea Robinsoniana , Russian name Vetrenitsa) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 15, 2015
Blue potted ageratum flowers in Antique Rose Emporium. Independence, Texas, April 4, 2009
Blue flower of sage (Salvia) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 5, 2011
Small blue aster flower on Moore s Hill Outcrop at FM Road 3090 near Navasota. Texas, October 20, 2013
White and blue passion flower in TAMU Holistic Garden in Texas A and M University. College Station, Texas, May 11, 2008
Blue flowers of cowpea (Vigna unguiculata) taken from Al Wosail(?) Street in Lejbailat area. Doha, Qatar, April 1, 2015
Blue flowers of mountain hydrangea (Hydrangea serrata) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
Flowers of Kleingrass (blue panicgrass, Panicum coloratum) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, October 9, 2015
Blue iris flowers Iridodictyum Katharine Hodgkin in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 12, 2017
Blue flower of periwinkle in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 22, 2017
Small blue flowers of veronica in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 22, 2017
Blue flower of spring violet (viola) in Lisiy Nos, west from Saint Petersburg. Russia, June 1, 2017
Blue pimpernel flowers in a riverbed of a tributary of Nahal Revivim descending from a mountain ridge near Yeroham reservoir. The Middle East, March 8, 2001
Blue sage flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 14, 2008
Blue sage flower in Zilker Botanical Gardens. Austin, Texas, July 26, 2008
Blue flowers of bastard pennyroyal in Lick Creek Park. College Station, Texas, September 30, 2008
Blue iris flowers from Bayou Coquille Trail in Barataria Preserve, south from New Orleans. Louisiana, April 1, 2006
Mountain laurel flowers on Blue Trail in DeSoto State Park on Lookout Mountain. Fort Payne, Alabama, May 19, 2007
Side view of blue iris flower in TAMU Holistic Garden in Texas A and M University. College Station, Texas, February 24, 2009
Blue flower of Skeleton plant (Lygodesmia texana) in Old Baylor Park. Independence, Texas, May 9, 2009
Jack-in-the-Pulpit, Indian turnip, flower near south side of Ponkapoag Pond in Blue Hills Reservation. Boston, Massachusetts, May 15, 2004
Small blue flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 18, 2008
Blue linum (flax) flowers in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 31, 2008
Tiny flowers of blue field madder (spurwort, Sherardia arvensis) on a lawn in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, January 9, 2009
Flowers of Fanflower Scaevola aemula Whirlwind Blue in Antique Rose Emporium in Independence. Texas, May 3, 2009
Small blue tubular flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 5, 2009
Blue flowers of veronica in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 23, 2009
Blue and white, snapdragon like flowers of Branched Broomrape (hemp broomrape, Orobanche ramosa) taken from a lawn outside of apartment at George Bush Drive. College Station, Texas, April 8, 2010.
Blue flower of lily family in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, October 14, 2012
Leaf-footed bug (Leptoglossus phyllopus) on a blue flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 20, 2008
Bumblebee on a blue flower of Stachytarpheta sp. (Porterweed, Brazilian Tea) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, November 8, 2009
Blue flower of Aristea ecklonii in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 10, 2010
Blue iris flowers in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 13, 2014
Small scullcap (Scutellaria parvula) with tiny blue 2-lobed glandular-hairy flowers with shield-like projection arising from upper lobe in Lick Creek Park. College Station, Texas, April 11, 2010
Blue flowers of Navelwort (Omphalodes cappadocica) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 22, 2011
Blue passion flower (Passiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 25, 2014
Blue iris flowers (Iridodictyum histrioides) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 12, 2017
Field of blue flowers of squill (Scilla armena) under an oak in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 12, 2017
Various blue flowers in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 29, 2017
Blue flowers of iris in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 20, 2017
Blue flower buds of salvia like plant in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 9, 2010
Blue flowers of Bird s-eye Speedwell (Veronica chamaedrys) east from Kuzmolovo, 7 miles north from Saint Petersburg. Russia, June 22, 2011
Deep blue flower of morning glory (Ipomoea) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, September 26, 2012
Blue carpenter bee (Xylocopa violacea) on flowers of Sodom Apple (Calotropis procera) between Dar Al Salam Compound and Haloul Street in Abu Hamour. Doha, Qatar, June 27, 2013
Blue flowers of scarlet pimpernel (Anagallis arvensis var. caerulea, local name ain al qit) in a depression near a road to Zubara in Al Magdah farms area, in north-western Qatar, February 22, 2014
Veined flower of blue violet on Little Lake Creek Loop Trail in Sam Houston National Forest. Richardson, Texas, February 22, 2009
Back lit flowers of Blue morning glory (Ipomoea indica) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, May 24, 2009
Blue flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 28, 2011
Blue flower of branched blazing star (Aggie-land gayfeather, Liatris cymosa) in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, August 7, 2014
Blue flowers of cowpea (Vigna unguiculata) on white background taken from Al Wosail(?) Street in Lejbailat area. Doha, Qatar, April 1, 2015
Khozama flowers (Horwoodia dicksoniae) against blue sky near a fence of Al Defai Farm in Lebwairda area north from Al Khor. Qatar, February 12, 2016
Masses of blue flowers of Liverleaf (Hepatica nobilis) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 4, 2017
Small blue flowers of Stachytarpheta sp. (Porterweed, Brazilian Tea) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 24, 2008
Blue flowers of Stachytarpheta sp. (Porterweed, Brazilian Tea) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 31, 2008
Blue skullcap(?) flowers in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, November 6, 2008
Blue-purple, papilionaceous flowers of winter vetch (Vicia villosa) on Spillway Trail in Brazos Bend State Park. Needville, Texas, December 14, 2008
Close up of a blue flower of Skeleton plant (Lygodesmia texana) in Old Baylor Park. Independence, Texas, May 9, 2009
A trillium flower near Blue Ridge Parkway, at Mile 79. Peaks of Otter, Virginia, May 17, 2007
Blue flower of larkdaisy (Centratherum punctatum) in Antique Rose Emporium. Independence, Texas, March 8, 2009
Blue flower of Snapdragon vine (Maurandya antirrhiniflora) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, April 1, 2009
Tiny blue flower of Lance-leaved water-willow (Justicia ovata var. lanceolata) in Lick Creek Park. College Station, Texas, September 16, 2012
Blue flowers of lupin east from Kuzmolovo, north from Saint Petersburg. Russia, June 8, 2014
Close up of a blue flower of Benghal dayflower (tropical spiderwort, Commelina benghalensis) taken from Al Rabiya Street in Al Jebailat area near West Bay. Doha, Qatar, May 7, 2015
Blue crocus flowers in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 29, 2017
Blue hibiscus flower in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 21, 2008
Blue iris flower in Antique Rose Emporium in Independence. Texas, March 22, 2009
Blue tubular flower of Hyssop Skullcap (Scutellaria integrifolia) in Big Thicket park on Sundew Trail. Texas, April 25, 2009
Blue flowers of crocus in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 9, 2013
Blue flower of Purple dewdrop (Lobelia puberula) on Little Lake Creek Loop Trail in Sam Houston National Forest. Texas, November 1, 2008
Blue iris flower in TAMU Holistic Garden in Texas A and M University. College Station, Texas, February 24, 2009
Blue flowers of fodder galega (Galega orientalis, Russian name Kozliatnik) in fields west from Deviatkino. Saint Petersburg, Russia, June 29, 2011
Purple flowers of beinwell (blue comfrey, Symphytum caucasicum, Russian name Okopnik) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 26, 2014
Small blue flowers of Tradescantia in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, July 18, 2014
Blue butterfly bush flowers (Clerodendrum) in greenhouses of Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, February 23, 2017
Blue flowers of mealy sage (Salvia farinacea) on opposite side of the river downstream from Cypress Pool in Pedernales Falls State Park. Johnson City, Texas, November 2, 2008
Blue flowers of Hyssop Skullcap (Scutellaria integrifolia) in Big Thicket park on Sundew Trail. Texas, April 25, 2009
Blue flowers on a vine of Brazilian nightshade (Solanum seaforthianum) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, October 14, 2009
Flower bud of blue lupin along railroad in Lembolovo, north from Saint Petersburg, Russia, June 30, 2010
Blue iris flower near a summer house on 69 kilometr near Sosnovo, north from Saint Petersburg. Russia, June 20, 2011
Small blue flower in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, January 21, 2013
Pasqueflower (Pulsatilla) with small blue flowers in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 15, 2015
Blue toadflax like flowers in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, August 22, 2013
Blue flower of dayflower (Commelina) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
Blue flowers of grape hyacinth (Muscari) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 21, 2015
Blue flowers of chicory (Cichorium pumilum) on the median strip of Al Istiqlal Street in Onaiza area. Doha, Qatar, April 13, 2016
Flowers of blue waterleaf (Hydrolea ovata) in Birch Creek Unit of Somerville Lake State Park. Texas, September 8, 2012
Some blue flowers in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 9, 2014
Blue flower of Black Rampion (Phyteuma nigrum, Russian name Kolnik) near Angliyskaya Alley in Upper Park. Oranienbaum (Lomonosov), a suburb of Saint Petersburg, Russia, June 22, 2014
Blue flowers of Michaelmas daisy (Aster amellus Rudolph Goethe ) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 21, 2015
Blue flowers of lungwort (Pulmonaria obscura, Russian name Medunitsa) in Sablino, south from Saint Petersburg. Russia, May 21, 2011
Blue flower spike of Black Rampion (Phyteuma nigrum, Russian name Kolnik) near Angliyskaya Alley in Upper Park. Oranienbaum (Lomonosov), a suburb of Saint Petersburg, Russia, June 22, 2014
Blue flower spike of Long leaf Speedwell (Veronica longifolia) in fields west from Deviatkino. Saint Petersburg, Russia, June 29, 2011
Small blue lobelia like flower or Yeatesia(?) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, July 20, 2013
Blue spiderwort (tradescantia) flowers on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 29, 2009
Blue flower of lily family in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 13, 2010
Tiny blue flower of lance-leaved water-willow (Justicia ovata var. lanceolata) on Iron Bridge Trail in Lick Creek Park. College Station, Texas, May 27, 2010
Eyelash Plant (Blepharis ciliaris, Blepharis persica, Ruellia ciliaris, local names nejayae, shouk al dab) with blue flowers near a road from Dukhan to Al Jumayliyah. Western Qatar, March 1, 2014
Flower of blue violet. Dibuny, north-west from Saint Petersburg, Russia, June 1, 2014
