Wildflowers Blooming in Missouri in September (60 Species)

60 wildflowers were recorded blooming in Missouri in September in our iNaturalist sample; 22 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.

Feb Mar Apr May Jun Jul Aug Sep Oct Nov

Top wildflowers in September

White Snakeroot99 obs.

Great Blue Lobelia76 obs.

Asiatic dayflower74 obs.

Wingstem67 obs.

American hog-peanut59 obs.

brown-eyed Susan56 obs.

Purple Passionflower51 obs.

Common Jewelweed42 obs.

Blue Mistflower41 obs.

White Morning-glory37 obs.

Cardinal Flower33 obs.

Common Morning-Glory32 obs.

All wildflowers blooming in Missouri in September

#	Species	Scientific name	Family	Obs.	Peak in state
1	White Snakeroot	Ageratina altissima	Sunflowers, Daisies, Asters, and Allies	99	Sep (peak)
2	Great Blue Lobelia	Lobelia siphilitica	bellflower family	76	Sep (peak)
3	Asiatic dayflower	Commelina communis	Spiderworts	74	Sep (peak)
4	Wingstem	Verbesina alternifolia	Sunflowers, Daisies, Asters, and Allies	67	Sep (peak)
5	American hog-peanut	Amphicarpaea bracteata	Legumes	59	Aug (past peak)
6	brown-eyed Susan	Rudbeckia triloba	Sunflowers, Daisies, Asters, and Allies	56	Aug (past peak)
7	Purple Passionflower	Passiflora incarnata	Passionfruit Family	51	Aug (past peak)
8	Common Jewelweed	Impatiens capensis	balsam family	42	Sep (peak)
9	Blue Mistflower	Conoclinium coelestinum	Sunflowers, Daisies, Asters, and Allies	41	Sep (peak)
10	White Morning-glory	Ipomoea lacunosa	bindweed family	37	Sep (peak)
11	Cardinal Flower	Lobelia cardinalis	bellflower family	33	Sep (peak)
12	Common Morning-Glory	Ipomoea purpurea	bindweed family	32	Sep (peak)
13	Late Boneset	Eupatorium serotinum	Sunflowers, Daisies, Asters, and Allies	25	Sep (peak)
14	Frostweed	Verbesina virginica	Sunflowers, Daisies, Asters, and Allies	25	Sep (peak)
15	Common Hibiscus	Hibiscus syriacus	Mallow and Hibiscus Family	23	Aug (past peak)
16	Tall Goldenrod	Solidago altissima	Sunflowers, Daisies, Asters, and Allies	22	Sep (peak)
17	New England aster	Symphyotrichum novae-angliae	Sunflowers, Daisies, Asters, and Allies	21	Sep (peak)
18	Leafy Elephant's-Foot	Elephantopus carolinianus	Sunflowers, Daisies, Asters, and Allies	19	Aug (past peak)
19	Chicory	Cichorium intybus	Sunflowers, Daisies, Asters, and Allies	18	Jul (past peak)
20	Whitemouth Dayflower	Commelina erecta	Spiderworts	16	Jul (past peak)
21	Smooth Hedgenettle	Stachys tenuifolia	Mint Family	15	Jul (past peak)
22	Low Smartweed	Persicaria longiseta	knotweed family	14	Sep (peak)
23	Pale Jewelweed	Impatiens pallida	balsam family	13	Sep (peak)
24	Nodding Beggarticks	Bidens cernua	Sunflowers, Daisies, Asters, and Allies	13	Sep (peak)
25	Tall Bellflower	Campanulastrum americanum	bellflower family	13	Jul (past peak)
26	Carolina horsenettle	Solanum carolinense	nightshade family	12	Jun (past peak)
27	Common Sneezeweed	Helenium autumnale	Sunflowers, Daisies, Asters, and Allies	12	Sep (peak)
28	Fall Phlox	Phlox paniculata	phlox family	11	Oct (rising)
29	Partridge Pea	Chamaecrista fasciculata	Legumes	10	Aug (past peak)
30	Sharpwing Monkeyflower	Mimulus alatus	lopseed family	10	Jul (past peak)
31	Pickerelweed	Pontederia cordata	Pickerelweeds	9	Jun (past peak)
32	Field Bindweed	Convolvulus arvensis	bindweed family	9	Jun (past peak)
33	Giant Ragweed	Ambrosia trifida	Sunflowers, Daisies, Asters, and Allies	9	Aug (past peak)
34	Field Thistle	Cirsium discolor	Sunflowers, Daisies, Asters, and Allies	9	Sep (peak)
35	Frost Aster	Symphyotrichum pilosum	Sunflowers, Daisies, Asters, and Allies	9	Sep (peak)
36	American jumpseed	Persicaria virginiana	knotweed family	9	Aug (past peak)
37	Lanceleaf Frogfruit	Phyla lanceolata	Verbena Family	8	Aug (past peak)
38	Autumn Clematis	Clematis terniflora	buttercup family	8	Aug (past peak)
39	Obedient Plant	Physostegia virginiana	Mint Family	8	Aug (past peak)
40	Blue Curls	Trichostema dichotomum	Mint Family	8	Sep (peak)
41	Trailing Fuzzy-Bean	Strophostyles helvola	Legumes	8	Aug (past peak)
42	American pokeweed	Phytolacca americana	Pokeweed Family	7	Jul (past peak)
43	Red Clover	Trifolium pratense	Legumes	7	May (past peak)
44	Japanese honeysuckle	Lonicera japonica	honeysuckle family	7	May (past peak)
45	Cup Plant	Silphium perfoliatum	Sunflowers, Daisies, Asters, and Allies	7	Aug (past peak)
46	Hairy Ruellia	Ruellia humilis	Acanthus Family	7	Jul (past peak)
47	Swamp Milkweed	Asclepias incarnata	Dogbane Family	7	Aug (past peak)
48	Jimsonweed	Datura stramonium	nightshade family	6	Sep (peak)
49	Flower-Of-An-Hour	Hibiscus trionum	Mallow and Hibiscus Family	6	Sep (peak)
50	American groundnut	Apios americana	Legumes	6	Aug (past peak)