Blue/purple Flowers

Dogbane Family (Apocynaceae)
Vinca minor
Periwinkle
Vinca minor
Aster Family (Asteraceae)
Cichorium intybus
Chicory
Cichorium intybus
Erigeron pulchellus
Robin-plantain
Erigeron pulchellus
Eurybia macrophylla
Large-leaved Aster
Eurybia macrophylla
Eurybia radula
Rough-leaved Aster
Eurybia radula
Eurybia spectabilis
Showy Aster
Eurybia spectabilis
Ionactis linariifolia
Stiff Aster
Ionactis linariifolia
Oclemena nemoralis
Bog Aster
Oclemena nemoralis
Symphyotrichum cordifolium
Heart-leaved Aster
Symphyotrichum cordifolium
Symphyotrichum dumosum
Bushy Aster
Symphyotrichum dumosum
Symphyotrichum laeve
Smooth Aster
Symphyotrichum laeve
Symphyotrichum lowrieanum
Lowrie's Aster
Symphyotrichum lowrieanum
Symphyotrichum novae-angliae
New England Aster
Symphyotrichum novae-angliae
Symphyotrichum novi-belgii
New York Aster
Symphyotrichum novi-belgii
Symphyotrichum patens
Late Purple Aster
Symphyotrichum patens
Symphyotrichum puniceum
Purple-stemmed Aster
Symphyotrichum puniceum
Symphyotrichum undulatum
Wavy-leaved Aster
Symphyotrichum undulatum
Vernonia noveboracensis
New York Ironweed
Vernonia noveboracensis
Borage Family (Boraginaceae)
Cynoglossum virginianum
Wild Comfrey
Cynoglossum virginianum
Echium vulgare
Viper's Bugloss
Echium vulgare
Hydrophyllum virginianum
Virginia Waterleaf
Hydrophyllum virginianum
Myosotis scorpioides
True Forget-me-not
Myosotis scorpioides
Myosotis stricta
Blue Scorpion-grass
Myosotis stricta
Bellflower Family (Campanulaceae)
Campanula aparinoides
Marsh Bellflower
Campanula aparinoides
Campanula rotundifolia
Harebell
Campanula rotundifolia
Lobelia dortmanna
Water Lobelia
Lobelia dortmanna
Lobelia inflata
Indian-tobacco
Lobelia inflata
Lobelia kalmii
Brook Lobelia
Lobelia kalmii
Lobelia siphilitica
Great Lobelia
Lobelia siphilitica
Lobelia spicata
Spiked Lobelia
Lobelia spicata
Triodanis perfoliata
Venus's Looking-glass
Triodanis perfoliata
Spiderwort Family (Commelinaceae)
Commelina communis
Asiatic Dayflower
Commelina communis
Tradescantia virginiana
Virginia Spiderwort
Tradescantia virginiana
Morning glory Family (Convolvulaceae)
Ipomoea purpurea
Common Morning Glory
Ipomoea purpurea
Pea Family (Fabaceae)
Amorpha fruticosa
False Indigo
Amorpha fruticosa
Baptisia australis
Blue False Indigo
Baptisia australis
Lupinus perennis
Wild Blue Lupine
Lupinus perennis
Lupinus polyphyllus
Common Lupine
Lupinus polyphyllus
Vicia cracca
Cow Vetch
Vicia cracca
Vicia tetrasperma
Slender Vetch
Vicia tetrasperma
Gentian Family (Gentianaceae)
Gentiana andrewsii
Fringe-tipped Closed Gentian
Gentiana andrewsii
Gentiana clausa
Bottle Gentian
Gentiana clausa
Gentianella quinquefolia
Stiff Gentian
Gentianella quinquefolia
Gentianopsis crinita
Greater Fringed Gentian
Gentianopsis crinita
Iris Family (Iridaceae)
Iris prismatica
Slender Blueflag
Iris prismatica
Iris versicolor
Larger Blueflag
Iris versicolor
Sisyrinchium angustifolium
Stout Blue-eyed Grass
Sisyrinchium angustifolium
Sisyrinchium atlanticum
Eastern Blue-eyed Grass
Sisyrinchium atlanticum
Sisyrinchium montanum
Mountain Blue-eyed Grass
Sisyrinchium montanum
Mint Family (Lamiaceae)
Agastache scrophulariifolia
Purple Giant Hyssop
Agastache scrophulariifolia
Ajuga reptans
Bugle
Ajuga reptans
Blephilia hirsuta
Hairy Wood-mint
Blephilia hirsuta
Glechoma hederacea
Ground-ivy
Glechoma hederacea
Hedeoma pulegioides
American Pennyroyal
Hedeoma pulegioides
Mentha arvensis
Wild Mint
Mentha arvensis
Prunella vulgaris
Selfheal
Prunella vulgaris
Pycnanthemum √óclinopodioides
Basil Mountain-mint
Pycnanthemum √óclinopodioides
Pycnanthemum tenuifolium
Narrow-leaved Mountain-mint
Pycnanthemum tenuifolium
Salvia lyrata
Lyre-leaved Sage
Salvia lyrata
Scutellaria galericulata
Common Skullcap
Scutellaria galericulata
Scutellaria integrifolia
Hyssop Skullcap
Scutellaria integrifolia
Scutellaria lateriflora
Mad-dog Skullcap
Scutellaria lateriflora
Scutellaria parvula
Smaller Skullcap
Scutellaria parvula
Trichostema brachiatum
Fluxweed
Trichostema brachiatum
Trichostema dichotomum
Bluecurls
Trichostema dichotomum
Trichostema setaceum
Narrow-leaved Bluecurls
Trichostema setaceum
False pimpernel Family (Linderniaceae)
Lindernia dubia
False Pimpernel
Lindernia dubia
Broomrape Family (Orobanchaceae)
Orobanche uniflora
One-flowered Cancer Root
Orobanche uniflora
Lopseed Family (Phrymaceae)
Mimulus alatus
Winged Monkey Flower
Mimulus alatus
Mimulus ringens
Monkey Flower
Mimulus ringens
Plantain Family (Plantaginaceae)
Chaenorhinum minus
Dwarf Snapdragon
Chaenorhinum minus
Nuttallanthus canadensis
Blue Toadflax
Nuttallanthus canadensis
Penstemon calycosus
Long-sepaled Beardtongue
Penstemon calycosus
Penstemon hirsutus
Hairy Beardtongue
Penstemon hirsutus
Veronica americana
American Brooklime
Veronica americana
Veronica anagallis-aquatica
Water Speedwell
Veronica anagallis-aquatica
Veronica arvensis
Corn Speedwell
Veronica arvensis
Veronica chamaedrys
Bird's-eye Speedwell
Veronica chamaedrys
Veronica officinalis
Common Speedwell
Veronica officinalis
Veronica scutellata
Marsh Speedwell
Veronica scutellata
Leadwort Family (Plumbaginaceae)
Limonium carolinianum
Sea Lavender
Limonium carolinianum
Phlox Family (Polemoniaceae)
Phlox divaricata
Wild Blue Phlox
Phlox divaricata
Pickerelweed Family (Pontederiaceae)
Pontederia cordata
Pickerelweed
Pontederia cordata
Buttercup Family (Ranunculaceae)
Anemone americana
Round-lobed Hepatica
Anemone americana
Clematis occidentalis
Purple Clematis
Clematis occidentalis
Bedstraw Family (Rubiaceae)
Houstonia caerulea
Bluets
Houstonia caerulea
Houstonia longifolia
Long-leaved Bluet
Houstonia longifolia
Nightshade Family (Solanaceae)
Solanum carolinense
Horse-nettle
Solanum carolinense
Solanum dulcamara
Nightshade
Solanum dulcamara
Vervain Family (Verbenaceae)
Verbena hastata
Blue Vervain
Verbena hastata
Verbena simplex
Narrow-leaved Vervain
Verbena simplex
Violet Family (Violaceae)
Viola adunca
Hook-spurred Violet
Viola adunca
Viola brittoniana
Coast Violet
Viola brittoniana
Viola cucullata
Marsh Blue Violet
Viola cucullata
Viola labradorica
Dog Violet
Viola labradorica
Viola palmata
Early Blue Violet
Viola palmata
Viola pedata
Birdfoot Violet
Viola pedata
Viola rostrata
Long-spurred Violet
Viola rostrata
Viola sagittata
Arrow-leaved Violet
Viola sagittata
Viola selkirkii
Great-spurred Violet
Viola selkirkii
Viola sororia
Common Blue Violet
Viola sororia