Wildflowers Blooming in South Dakota in August (60 Species)

60 wildflowers were recorded blooming in South Dakota in August in our iNaturalist sample; 19 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.

Apr May Jun Jul Aug Sep

Top wildflowers in August

Curlycup Gumweed24 obs.

Fireweed18 obs.

Rocky Mountain Beeplant18 obs.

black-eyed Susan15 obs.

Wild Bergamot15 obs.

Pearly Everlasting14 obs.

Field Bindweed13 obs.

Common Toadflax11 obs.

All wildflowers blooming in South Dakota in August

#	Species	Scientific name	Family	Obs.	Peak in state
1	Curlycup Gumweed	Grindelia squarrosa	Sunflowers, Daisies, Asters, and Allies	24	Aug (peak)
2	Fireweed	Chamaenerion angustifolium	evening primrose family	18	Jul (past peak)
3	Rocky Mountain Beeplant	Cleomella serrulata	Spider Flower Family	18	Aug (peak)
4	black-eyed Susan	Rudbeckia hirta	Sunflowers, Daisies, Asters, and Allies	15	Jul (past peak)
5	Wild Bergamot	Monarda fistulosa	Mint Family	15	Jul (past peak)
6	Pearly Everlasting	Anaphalis margaritacea	Sunflowers, Daisies, Asters, and Allies	14	Aug (peak)
7	Field Bindweed	Convolvulus arvensis	bindweed family	13	Jun (past peak)
8	Common Tansy	Tanacetum vulgare	Sunflowers, Daisies, Asters, and Allies	13	Aug (peak)
9	Great Mullein	Verbascum thapsus	figwort family	12	Aug (peak)
10	Buffalo-Bur	Solanum rostratum	nightshade family	12	Aug (peak)
11	Hoary Vervain	Verbena stricta	Verbena Family	12	Jul (past peak)
12	Common Toadflax	Linaria vulgaris	Plantain Family	11	Aug (peak)
13	Bull Thistle	Cirsium vulgare	Sunflowers, Daisies, Asters, and Allies	11	Aug (peak)
14	Nodding Onion	Allium cernuum	amaryllis, onions, and allies	11	Aug (peak)
15	Upright Prairie Coneflower	Ratibida columnifera	Sunflowers, Daisies, Asters, and Allies	10	Jul (past peak)
16	Western Harebell	Campanula petiolata	bellflower family	9	Jul (past peak)
17	Common Jewelweed	Impatiens capensis	balsam family	6	Aug (peak)
18	Red Clover	Trifolium pratense	Legumes	6	Jul (past peak)
19	Red Osier Dogwood	Cornus sericea	Dogwood family	6	Jun (past peak)
20	Richardson's geranium	Geranium richardsonii	Geranium family	6	Jul (past peak)
21	Bittersweet Nightshade	Solanum dulcamara	nightshade family	5	Jun (past peak)
22	Common Sunflower	Helianthus annuus	Sunflowers, Daisies, Asters, and Allies	5	Jul (past peak)
23	Blue Vervain	Verbena hastata	Verbena Family	5	Jul (past peak)
24	White Campion	Silene latifolia	pink family	5	Aug (peak)
25	Great Blue Lobelia	Lobelia siphilitica	bellflower family	5	Aug (peak)
26	Bird's-Foot Trefoil	Lotus corniculatus	Legumes	4	Jul (past peak)
27	Firewheel	Gaillardia pulchella	Sunflowers, Daisies, Asters, and Allies	4	Aug (peak)
28	Yellow Sweetclover	Melilotus officinalis	Legumes	4	Jul (past peak)
29	Virginia strawberry	Fragaria virginiana	rose family	4	Jun (past peak)
30	American hog-peanut	Amphicarpaea bracteata	Legumes	4	Aug (peak)
31	Cutleaf Coneflower	Rudbeckia laciniata	Sunflowers, Daisies, Asters, and Allies	4	Jul (past peak)
32	spotted Joe-Pye weed	Eutrochium maculatum	Sunflowers, Daisies, Asters, and Allies	4	Aug (peak)
33	fen grass of Parnassus	Parnassia glauca	staff-vine family	4	Aug (peak)
34	Dame's Rocket	Hesperis matronalis	mustard family	3	Jun (past peak)
35	Pineapple-Weed	Matricaria discoidea	Sunflowers, Daisies, Asters, and Allies	3	Jul (past peak)
36	Giant Ragweed	Ambrosia trifida	Sunflowers, Daisies, Asters, and Allies	3	Aug (peak)
37	Common Soapwort	Saponaria officinalis	pink family	3	Jun (past peak)
38	Rubber Rabbitbrush	Ericameria nauseosa	Sunflowers, Daisies, Asters, and Allies	3	Sep (rising)
39	White Sweetclover	Melilotus albus	Legumes	3	Jul (past peak)
40	Creeping Thistle	Cirsium arvense	Sunflowers, Daisies, Asters, and Allies	3	Jul (past peak)
41	Showy Milkweed	Asclepias speciosa	Dogbane Family	3	Jul (past peak)
42	Musk Thistle	Carduus nutans	Sunflowers, Daisies, Asters, and Allies	3	Jun (past peak)
43	Swamp Milkweed	Asclepias incarnata	Dogbane Family	3	Jul (past peak)
44	False Sunflower	Heliopsis helianthoides	Sunflowers, Daisies, Asters, and Allies	3	Aug (peak)
45	Spreading Dogbane	Apocynum androsaemifolium	Dogbane Family	2	Jul (past peak)
46	Common Dandelion	Taraxacum officinale	Sunflowers, Daisies, Asters, and Allies	2	May (past peak)
47	Pale Jewelweed	Impatiens pallida	balsam family	2	Aug (peak)
48	Common Yarrow	Achillea millefolium	Sunflowers, Daisies, Asters, and Allies	2	Jul (past peak)
49	White Clover	Trifolium repens	Legumes	2	Jun (past peak)
50	Oxeye Daisy	Leucanthemum vulgare	Sunflowers, Daisies, Asters, and Allies	2	Jul (past peak)