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Flower color
Blue
Species with blue flowers per USDA.
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Showing 1–50 of 52.
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Aconitum columbianum Nutt. ACCO4Columbian monkshood · Ranunculaceae -
Ajuga reptans L. AJREcommon bugle · Lamiaceae -
Aquilegia coerulea James AQCOColorado blue columbine · Ranunculaceae -
Callicarpa americana L. CAAM2American beautyberry · Verbenaceae -
Camassia quamash (Pursh) Greene CAQU2small camas · Liliaceae -
Camassia scilloides (Raf.) Cory CASC5Atlantic camas · Liliaceae -
Campanulastrum americanum (L.) Small CAAM18American bellflower · Campanulaceae -
Ceanothus americanus L. CEAMNew Jersey tea · Rhamnaceae -
Ceanothus greggii A. Gray CEGRdesert ceanothus · Rhamnaceae -
Ceratophyllum demersum L. CEDE4coon's tail · Ceratophyllaceae -
Cichorium intybus L. CIINchicory · Asteraceae -
Collinsia parviflora Lindl. COPA3maiden blue eyed Mary · Scrophulariaceae -
Commelina diffusa Burm. f. CODI5climbing dayflower · Commelinaceae -
Commelina virginica L. COVI3Virginia dayflower · Commelinaceae -
Conoclinium coelestinum (L.) DC. COCO13blue mistflower · Asteraceae -
Desmodium tortuosum (Sw.) DC. DETOdixie ticktrefoil · Fabaceae -
Gentiana calycosa Griseb. GECARainier pleated gentian · Gentianaceae -
Hydrolea quadrivalvis Walter HYQUwaterpod · Hydrophyllaceae -
Iris virginica L. IRVIVirginia iris · Iridaceae -
Lathyrus hirsutus L. LAHI2Caley pea · Fabaceae -
Linum lewisii Pursh LILE3Lewis flax · Linaceae -
Liriope muscari (Decne.) L.H. Bailey LIMU6big blue lilyturf · Liliaceae -
Lupinus arcticus S. Watson LUAR2arctic lupine · Fabaceae -
Lupinus argenteus Pursh LUAR3silvery lupine · Fabaceae -
Lupinus caudatus Kellogg LUCAtailcup lupine · Fabaceae -
Lupinus latifolius Lindl. ex J. Agardh LULA4broadleaf lupine · Fabaceae -
Lupinus sericeus Pursh LUSE4silky lupine · Fabaceae -
Mertensia ciliata (James ex Torr.) G. Don MECI3tall fringed bluebells · Boraginaceae -
Mertensia virginica (L.) Pers. ex Link MEVI3Virginia bluebells · Boraginaceae -
Mimulus alatus Aiton MIAL2sharpwing monkeyflower · Scrophulariaceae -
Myosotis scorpioides L. MYSCtrue forget-me-not · Boraginaceae -
Myrica gale L. MYGAsweetgale · Myricaceae -
Penstemon albertinus Greene PEAL11Alberta beardtongue · Scrophulariaceae -
Penstemon cyananthus Hook. PECY2Wasatch beardtongue · Scrophulariaceae -
Penstemon fruticosus (Pursh) Greene PEFR3bush penstemon · Scrophulariaceae -
Penstemon rydbergii A. Nelson PERYRydberg's penstemon · Scrophulariaceae -
Phacelia tanacetifolia Benth. PHTAlacy phacelia · Hydrophyllaceae -
Polemonium acutiflorum Willd. ex Roem. & Schult. POACtall Jacob's-ladder · Polemoniaceae -
Pontederia cordata L. POCO14pickerelweed · Pontederiaceae -
Populus tremuloides Michx. POTR5quaking aspen · Salicaceae -
Salvia dorrii (Kellogg) Abrams SADO4purple sage · Lamiaceae -
Schoenoplectus pungens (Vahl) Palla var. pungens SCPUP5common threesquare · Cyperaceae -
Sisyrinchium angustifolium Mill. SIAN3narrowleaf blue-eyed grass · Iridaceae -
Sisyrinchium idahoense E.P. Bicknell SIIDIdaho blue-eyed grass · Iridaceae -
Symphyotrichum prenanthoides (Muhl. ex Willd.) G.L. Nesom SYPR6crookedstem aster · Asteraceae -
Symphyotrichum puniceum (L.) Á. Löve & D. Löve var. puniceum SYPUPpurplestem aster · Asteraceae -
Symphyotrichum subulatum (Michx.) G.L. Nesom SYSU5eastern annual saltmarsh aster · Asteraceae -
Tradescantia virginiana L. TRVIVirginia spiderwort · Commelinaceae -
Triteleia grandiflora Lindl. TRGR7largeflower triteleia · Liliaceae -
Veronica americana Schwein. ex Benth. VEAM2American speedwell · Scrophulariaceae