 Flower of blue thistle in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 16, 2015
 Blue flower of morning glory (Ipomoea) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Thistle flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 26, 2016
 Blue iris in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 16, 2015
 Blue asters in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 16, 2015
 Blue flower of lily family in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 13, 2010
 Blue thistle flowers in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 5, 2017
 Blooming thistle (Cirsium heterophyllum(?), Russian name Bodiak) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Creeping thistle (Cirsium arvense, Russian name Bodiak) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Globe thistle (Echinops, Russian name Mordovnik) in rock garden in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Blue flowers of speedwell (Veronica)(?) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 16, 2015
 Blue flowers of snapdragon family in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Blue inflorescence on a small bush in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Flower heads of blue eryngo (Eryngium planum) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 29, 2016
 Some flower bracts in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Daisy flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 16, 2015
 Peony flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 16, 2015
 Flower bud of a daisy in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Geranium flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 16, 2015
 Blue flax (Linum perenne) in rock garden in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Blue pointed flowers of felwort (Swertia perennis) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Light blue balloon flower (Korean bellflower, Platycodon grandiflorus) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 26, 2016
 Yellow iris flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 16, 2015
 Orange calendula flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Yellow flower of scabiosa in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 16, 2015
 Fumewort (Corydalis hybr. Blue Dream , Russian name Khokhlatka) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 16, 2015
 Thistle flower (Russian name Vasiliok) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 23, 2009
 Some flower buds with white rims in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 16, 2015
 Seeds of pasque flower (Pulsatilla) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 16, 2015
 Dahlia flower (Russian name Georgin) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Blue flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 28, 2011
 Flower bud of an orange flower of aster family Senecio pseudoarnica (seaside ragwort)(?) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 16, 2015
 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
 Flower of Chinese wolfberry (Lycium barbarum) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 16, 2015
 Pink flower of morning glory (Ipomoea) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 White flower of morning glory (Ipomoea) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Orange dahlia flower (Russian name Georgin) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 16, 2015
 Blue flower of periwinkle in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 22, 2017
 Blue flowers of mountain hydrangea (Hydrangea serrata) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Globe thistle (Echinops) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 29, 2016
 Light pink flower of morning glory (Ipomoea) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Chicory-like flower of Siberian Lettuce (Lactuca sibirica) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Flower buds of yellow flowers of aster family in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 16, 2015
 Yellow flower of Heartleaf oxeye (Telekia speciosa) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 16, 2015
 Helmet flower (monkshood, Aconitum, Russian name Borets) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Chicory-like flower of Siberian Lettuce (Lactuca sibirica) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 16, 2015
 Helmet flower (monkshood, Aconitum, Russian name Borets) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 16, 2015
 Blue iris flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 20, 2017
 Blue iris flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 13, 2014
 Some blue flower in greenhouses of Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, February 23, 2017
 Blue aster flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 9, 2014
 Blue iris flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 23, 2009
 Blue flowers on a lawn in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 15, 2015
 Blue and white flowers in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 21, 2015
 Blue clematis in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 21, 2015
 Some blue creeping flowers in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 21, 2015
 Flower of Toad lily Tricyrtis latifolia Golden Leopard in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 16, 2015
 White flower of grass lily (Ornithogalum, Russian name Ptitsemlechnik) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 16, 2015
 Blue flower of lily family in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 8, 2011
 Blue squill (Scilla) flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 12, 2017
 Blue crocus flower buds in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 12, 2017
 Spring flower with blue buds in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 12, 2017
 Blue flower bud of a plant of lily family in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 14, 2011
 Hyacinth (Hyacinthus orientalis Blue Ice ) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 15, 2015
 Flower of great burnet plant (Sanguisorba officinalis, Russian name Krovokhliobka) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Central part of a blue iris flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 23, 2009
 Close up of blue flower of lily family in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 8, 2011
 Blue iris in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 4, 2017
 Blue aster in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 10, 2009
 Blue asters in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 4, 2017
 Pasqueflower (Pulsatilla) with small blue flowers in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 15, 2015
 Blue hyacinth (Hyacinthus orientalis Isabel ) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 15, 2015
 Blue flowers of grape hyacinth (Muscari) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 21, 2015
 Blue flowers of geranium in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 4, 2017
 Blue marsh iris in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 4, 2017
 Blue viola flowers in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 4, 2017
 Yellow flower of aster family Senecio pseudoarnica (seaside ragwort)(?) in rock garden in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Flower of death camas (Zigadenus elegans, Anticlea elegans) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Blue eryngo (Eryngium planum) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 28, 2017
 Blue flax (Linum perenne) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 2, 2016
 Blue flowers of a marsh orchid in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 4, 2017
 Blue iris with water drops in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 4, 2017
 Blue eryngo (Eryngium planum) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 18, 2016
 Blue striped flowers of geranium in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 4, 2017
 Flower bud of peony (Paeonia) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 15, 2015
 Flower bud of an orange flower of aster family in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 26, 2016
 Small blue flowers of brooklime (Veronica) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 26, 2016
 Blue flowers of Gentiana (Russian name Gorechavka) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 2, 2016
 Deep blue flowers of mint(?) family in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 4, 2017
 Blue fall asters (Michaelmas daisy, Aster amellus) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 21, 2015
 Yellow flower of Tulipa iliensis in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 15, 2015
 Daisy flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 26, 2016
 Flower umbels in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 18, 2016
 Gentian flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 19, 2012
 Parasol flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 4, 2017
 Goldenrod like flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 13, 2010
 Some flower buds in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 13, 2010
 Chicory like flower in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 13, 2010
 Some flower buds in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 4, 2017
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