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- Baneberry
- Red baneberry Actaea rubra
- White baneberry Actaea pachypoda
- Beard-tongues
- Large-flowered beard tongue Penstemon grandiflorus
- Pale beard tongue Penstemon pallidus
- Slender beard tongue Penstemon gracilis
- White beard tongue Penstemon albidus
- Bellwort
- Large-flowered bellwort Uvularia grandiflora
- Pale bellwort Uvularia sessilifolia
- Black-eyed Susan Rudbeckia hirta
- Blanketflower Gaillardia aristata
- Blazing stars
- Cylindric blazing star Liatris cylindracea
- Dotted blazing star Liatris punctata
- Great blazing star Liatris pycnostachya
- Northern plains blazing star Liatris ligulistylis
- Rough blazing star Liatris aspera
- Bloodroot Sanguinaria canadensis
- Bluebead lily Clintonia borealis
- Blueberry
- Lowbush blueberry Vaccinium angustifolium
- Velvet-leaved blueberry Vaccinium myrtilloides
- Blue-eyed grasses
- Field blue-eyed grass Sisyrinchium campestre
- Mountain blue-eyed grass Sisyrinchium montanum montanum
- Narrowleaf blue-eyed grass Sisyrinchium angustifolium
- Pointed-petal blue-eyed grass Sisyrinchium mucronatum
- Blue flag
- Northern blue flag Iris versicolor
- Southern blue flag Iris virginica var. shrevei
- Bunchberry Cornus canadensis
- Butterflyweed Asclepias tuberosa var. interior
Read more about this topic: List Of Minnesota Wild Flowers