Wildflowers Blooming in Kansas in September (60 Species)

60 wildflowers were recorded blooming in Kansas in September in our iNaturalist sample; 20 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.

Mar Apr May Jun Jul Aug Sep Oct

Top wildflowers in September

Asiatic dayflower31 obs.

White Snakeroot25 obs.

Flower-Of-An-Hour18 obs.

Whitemouth Dayflower12 obs.

Curlycup Gumweed12 obs.

Common Sunflower11 obs.

Smooth Hedgenettle10 obs.

American hog-peanut9 obs.

Wingstem9 obs.

Tall Goldenrod8 obs.

brown-eyed Susan7 obs.

Common Jewelweed6 obs.

All wildflowers blooming in Kansas in September

#	Species	Scientific name	Family	Obs.	Peak in state
1	Asiatic dayflower	Commelina communis	Spiderworts	31	Sep (peak)
2	White Snakeroot	Ageratina altissima	Sunflowers, Daisies, Asters, and Allies	25	Sep (peak)
3	Flower-Of-An-Hour	Hibiscus trionum	Mallow and Hibiscus Family	18	Sep (peak)
4	Whitemouth Dayflower	Commelina erecta	Spiderworts	12	Jul (past peak)
5	Curlycup Gumweed	Grindelia squarrosa	Sunflowers, Daisies, Asters, and Allies	12	Sep (peak)
6	Common Sunflower	Helianthus annuus	Sunflowers, Daisies, Asters, and Allies	11	Sep (peak)
7	Smooth Hedgenettle	Stachys tenuifolia	Mint Family	10	Jul (past peak)
8	American hog-peanut	Amphicarpaea bracteata	Legumes	9	Aug (past peak)
9	Wingstem	Verbesina alternifolia	Sunflowers, Daisies, Asters, and Allies	9	Sep (peak)
10	Tall Goldenrod	Solidago altissima	Sunflowers, Daisies, Asters, and Allies	8	Sep (peak)
11	brown-eyed Susan	Rudbeckia triloba	Sunflowers, Daisies, Asters, and Allies	7	Aug (past peak)
12	Common Jewelweed	Impatiens capensis	balsam family	6	Sep (peak)
13	Cardinal Flower	Lobelia cardinalis	bellflower family	6	Sep (peak)
14	Purple Groundcherry	Quincula lobata	nightshade family	6	May (past peak)
15	Purple Passionflower	Passiflora incarnata	Passionfruit Family	6	Jul (past peak)
16	Great Blue Lobelia	Lobelia siphilitica	bellflower family	6	Sep (peak)
17	Giant Ragweed	Ambrosia trifida	Sunflowers, Daisies, Asters, and Allies	5	Sep (peak)
18	Buffalo-Bur	Solanum rostratum	nightshade family	5	Jul (past peak)
19	Field Bindweed	Convolvulus arvensis	bindweed family	4	Jun (past peak)
20	Rocky Mountain Beeplant	Cleomella serrulata	Spider Flower Family	4	Aug (past peak)
21	Butterfly Milkweed	Asclepias tuberosa	Dogbane Family	3	Jun (past peak)
22	Red Clover	Trifolium pratense	Legumes	3	May (past peak)
23	Chicory	Cichorium intybus	Sunflowers, Daisies, Asters, and Allies	3	Jun (past peak)
24	Late Boneset	Eupatorium serotinum	Sunflowers, Daisies, Asters, and Allies	3	Sep (peak)
25	Autumn Clematis	Clematis terniflora	buttercup family	3	Sep (peak)
26	American trumpet vine	Campsis radicans	bignonia family	3	Jun (past peak)
27	Daisy Fleabane	Erigeron strigosus	Sunflowers, Daisies, Asters, and Allies	3	May (past peak)
28	Common Sneezeweed	Helenium autumnale	Sunflowers, Daisies, Asters, and Allies	3	Sep (peak)
29	New England aster	Symphyotrichum novae-angliae	Sunflowers, Daisies, Asters, and Allies	3	Oct (rising)
30	White Morning-glory	Ipomoea lacunosa	bindweed family	3	Oct (rising)
31	Eastern Black Nightshade	Solanum emulans	nightshade family	3	Sep (peak)
32	American pokeweed	Phytolacca americana	Pokeweed Family	2	Jul (past peak)
33	Carolina horsenettle	Solanum carolinense	nightshade family	2	Jun (past peak)
34	White Clover	Trifolium repens	Legumes	2	May (past peak)
35	Jimsonweed	Datura stramonium	nightshade family	2	Aug (past peak)
36	Allegheny monkeyflower	Mimulus ringens	lopseed family	2	Aug (past peak)
37	Madagascar Periwinkle	Catharanthus roseus	Dogbane Family	2	Sep (peak)
38	Puncture Vine	Tribulus terrestris	caltrops	2	Jun (past peak)
39	Japanese honeysuckle	Lonicera japonica	honeysuckle family	2	Jun (past peak)
40	Flowering Spurge	Euphorbia corollata	Spurge Family	2	Aug (past peak)
41	Amur honeysuckle	Lonicera maackii	honeysuckle family	2	May (past peak)
42	Leafy Elephant's-Foot	Elephantopus carolinianus	Sunflowers, Daisies, Asters, and Allies	2	Sep (peak)
43	Frostweed	Verbesina virginica	Sunflowers, Daisies, Asters, and Allies	2	Sep (peak)
44	Swamp Milkweed	Asclepias incarnata	Dogbane Family	2	Jul (past peak)
45	Winecup Mallow	Callirhoe involucrata	Mallow and Hibiscus Family	2	Jun (past peak)
46	Sharpwing Monkeyflower	Mimulus alatus	lopseed family	2	Jul (past peak)
47	Frost Aster	Symphyotrichum pilosum	Sunflowers, Daisies, Asters, and Allies	2	Sep (peak)
48	Tall Bellflower	Campanulastrum americanum	bellflower family	2	Jul (past peak)
49	Trailing Fuzzy-Bean	Strophostyles helvola	Legumes	2	Sep (peak)
50	Pinkladies	Oenothera speciosa	evening primrose family	1	May (past peak)