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Flower color
Blue
Species with blue flowers per USDA.
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Showing 1–50 of 68.
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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 fresnensis Dudley ex Abrams CEFRFresno mat · Rhamnaceae -
Ceanothus greggii A. Gray CEGRdesert ceanothus · Rhamnaceae -
Ceanothus papillosus Torr. & A. Gray CEPA2wartleaf ceanothus · Rhamnaceae -
Ceratophyllum demersum L. CEDE4coon's tail · Ceratophyllaceae -
Chamaecyparis lawsoniana (A. Murray bis) Parl. CHLAPort Orford cedar · Cupressaceae -
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 -
Guaiacum officinale L. GUOFlignum-vitae · Zygophyllaceae -
Guaiacum sanctum L. GUSAholywood · Zygophyllaceae -
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 albicaulis Douglas LUAL3sicklekeel lupine · Fabaceae -
Lupinus angustifolius L. LUAN4narrowleaf lupine · Fabaceae -
Lupinus arcticus S. Watson LUAR2arctic lupine · Fabaceae -
Lupinus argenteus Pursh LUAR3silvery lupine · Fabaceae -
Lupinus caudatus Kellogg LUCAtailcup lupine · Fabaceae -
Lupinus covillei Greene LUCO4shaggy lupine · Fabaceae -
Lupinus havardii S. Watson LUHABig Bend bluebonnet · Fabaceae -
Lupinus latifolius Lindl. ex J. Agardh LULA4broadleaf lupine · Fabaceae -
Lupinus lepidus Douglas ex Lindl. LULE2Pacific lupine · Fabaceae -
Lupinus nevadensis A. Heller LUNENevada 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 acuminatus Douglas ex Lindl. PEACsharpleaf penstemon · Scrophulariaceae -
Penstemon albertinus Greene PEAL11Alberta beardtongue · Scrophulariaceae -
Penstemon cyananthus Hook. PECY2Wasatch beardtongue · Scrophulariaceae -
Penstemon fruticosus (Pursh) Greene PEFR3bush penstemon · Scrophulariaceae -
Penstemon gairdneri Hook. PEGAGairdner's beardtongue · Scrophulariaceae -
Penstemon laetus A. Gray PELA7mountain blue penstemon · Scrophulariaceae -
Penstemon rydbergii A. Nelson PERYRydberg's penstemon · Scrophulariaceae