Purple wildflowers of the Black Hills

Purple flowers of the Black Hills of South Dakota and Wyoming, A to Z by common name. Open any plant for bloom time, ID details, roots and seeds.

In bloom

Alfalfa

Medicago sativa

May–Aug · Introduced

American Vetch

Vicia americana

May–Aug · Native

Photo: Jo Roberts, CC BY 4.0

Anise Hyssop

Agastache foeniculum

Jun–Sep · Native

Photo: Courtney Celley/USFWS, Public Domain

Aromatic Aster

Symphyotrichum oblongifolium

Aug–Sep · Native

Canada Thistle

Cirsium arvense

Jul–Oct · Introduced

Photo: Sage, CC BY 4.0

Dame's Rocket

Hesperis matronalis

May–Jun · Introduced

Dotted Gayfeather

Liatris punctata

Jul–Sep · Native

Photo: Jim Pisarowicz (National Park Service), Public Domain

Field Milkvetch

Astragalus agrestis

Jun–Jul · Native

Hoary Vervain

Verbena stricta

Jun–Sep · Native

Photo: Jim Pisarowicz, Public Domain

Hookedspur Violet

Viola adunca

Apr–Jul · Native

Photo: Brian Dickerson, CC0 1.0

Lambert's Crazyweed

Oxytropis lambertii

May–Jul · Native

Large Beardtongue

Penstemon grandiflorus

May–Jul · Native

Photo: NPS/Michael Wheeler, Public Domain

Laxmann's Milkvetch

Astragalus laxmannii var. robustior

Jun–Aug · Native

Photo: Ryan Donnelly, CC BY 4.0

Lead Plant

Amorpha canescens

Jun–Jul · Native

Northern Bog Violet

Viola nephrophylla

May–Jun · Native

Pasque Flower

Pulsatilla patens

Mar–May · Native

Purple Coneflower

Echinacea angustifolia

Jun–Aug · Native

Photo: National Park Service, Wind Cave National Park, Public Domain

Purple Prairie Clover

Dalea purpurea

Jun–Sep · Native

Photo: Brian Dickerson, CC0 1.0

Rocky Mountain Bee Plant

Cleomella serrulata

Jun–Sep · Native

Photo: Jo Roberts, CC BY 4.0

Rocky Mountain Blazing Star

Liatris ligulistylis

Jul–Sep · Native

Photo: Jo Roberts, CC BY 4.0

Silverleaf Scurfpea

Pediomelum argophyllum

Jun–Sep · Native

Photo: William Michael O'Boyle, CC BY 4.0

Silvery Lupine

Lupinus argenteus

Jun–Sep · Native

Photo: Bob Miller, CC BY 4.0

Slender Beardtongue

Penstemon gracilis

Jun–Aug · Native

Photo: Jo Roberts, CC BY 4.0

Small-flowered Columbine

Aquilegia brevistyla

May–Jul · Native

Photo: Todd Boland, CC BY 4.0

Smooth Beardtongue

Penstemon glaber

May–Aug · Native

Photo: Jo Roberts, CC BY 4.0

Smooth Blue Aster

Symphyotrichum laeve

Jul–Oct · Native

Photo: Jason Leduc, CC0 1.0

Spotted Joe-Pye Weed

Eutrochium maculatum var. bruneri

Jul–Sep · Native

Photo: Laurel Meredyk, CC BY 4.0

Threenerve Fleabane

Erigeron subtrinervis

Jul–Aug · Native

Wavyleaf Thistle

Cirsium undulatum

Jun–Aug · Native

Photo: Jo Roberts, CC BY 4.0

Wild Bergamot

Monarda fistulosa

Jun–Sep · Native

Photo: Jared Shorma, CC BY 4.0

Wyoming Kittentails

Veronica wyomingensis

Apr–Jun · Native

Photo: John Gaskin, CC0 1.0