Wildflowers Blooming in Arkansas in September (60 Species)

60 wildflowers were recorded blooming in Arkansas in September in our iNaturalist sample; 21 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

Cardinal Flower77 obs.

Purple Passionflower76 obs.

Wingstem70 obs.

White Morning-glory65 obs.

Blue Mistflower60 obs.

American hog-peanut54 obs.

Frostweed52 obs.

Late Boneset49 obs.

Great Blue Lobelia48 obs.

Asiatic dayflower41 obs.

American pokeweed40 obs.

Bitterweed36 obs.

All wildflowers blooming in Arkansas in September

#	Species	Scientific name	Family	Obs.	Peak in state
1	Cardinal Flower	Lobelia cardinalis	bellflower family	77	Sep (peak)
2	Purple Passionflower	Passiflora incarnata	Passionfruit Family	76	Jul (past peak)
3	Wingstem	Verbesina alternifolia	Sunflowers, Daisies, Asters, and Allies	70	Sep (peak)
4	White Morning-glory	Ipomoea lacunosa	bindweed family	65	Sep (peak)
5	Blue Mistflower	Conoclinium coelestinum	Sunflowers, Daisies, Asters, and Allies	60	Sep (peak)
6	American hog-peanut	Amphicarpaea bracteata	Legumes	54	Sep (peak)
7	Frostweed	Verbesina virginica	Sunflowers, Daisies, Asters, and Allies	52	Sep (peak)
8	Late Boneset	Eupatorium serotinum	Sunflowers, Daisies, Asters, and Allies	49	Sep (peak)
9	Great Blue Lobelia	Lobelia siphilitica	bellflower family	48	Sep (peak)
10	Asiatic dayflower	Commelina communis	Spiderworts	41	Sep (peak)
11	American pokeweed	Phytolacca americana	Pokeweed Family	40	Jul (past peak)
12	Bitterweed	Helenium amarum	Sunflowers, Daisies, Asters, and Allies	36	Aug (past peak)
13	Tall Goldenrod	Solidago altissima	Sunflowers, Daisies, Asters, and Allies	35	Sep (peak)
14	Leafy Elephant's-Foot	Elephantopus carolinianus	Sunflowers, Daisies, Asters, and Allies	32	Sep (peak)
15	Blue Curls	Trichostema dichotomum	Mint Family	30	Sep (peak)
16	Common Jewelweed	Impatiens capensis	balsam family	29	Jun (past peak)
17	White Snakeroot	Ageratina altissima	Sunflowers, Daisies, Asters, and Allies	28	Oct (rising)
18	Flowering Spurge	Euphorbia corollata	Spurge Family	27	Aug (past peak)
19	Partridge Pea	Chamaecrista fasciculata	Legumes	27	Aug (past peak)
20	Buttonbush	Cephalanthus occidentalis	madder family	26	Jul (past peak)
21	False Daisy	Eclipta prostrata	Sunflowers, Daisies, Asters, and Allies	23	Sep (peak)
22	Sharpwing Monkeyflower	Mimulus alatus	lopseed family	23	Aug (past peak)
23	Buttonweed	Diodia virginiana	madder family	18	Aug (past peak)
24	Downy Lobelia	Lobelia puberula	bellflower family	17	Sep (peak)
25	Smooth Hedgenettle	Stachys tenuifolia	Mint Family	17	Jul (past peak)
26	Carolina horsenettle	Solanum carolinense	nightshade family	16	Jun (past peak)
27	Autumn Clematis	Clematis terniflora	buttercup family	16	Aug (past peak)
28	Climbing Hempvine	Mikania scandens	Sunflowers, Daisies, Asters, and Allies	15	Sep (peak)
29	Trailing Fuzzy-Bean	Strophostyles helvola	Legumes	14	Sep (peak)
30	Yellow Passionflower	Passiflora lutea	Passionfruit Family	13	Jun (past peak)
31	Common Sneezeweed	Helenium autumnale	Sunflowers, Daisies, Asters, and Allies	13	Sep (peak)
32	Violet Woodsorrel	Oxalis violacea	Woodsorrel Family	12	Apr (past peak)
33	Low Smartweed	Persicaria longiseta	knotweed family	12	Oct (rising)
34	Giant Ragweed	Ambrosia trifida	Sunflowers, Daisies, Asters, and Allies	11	Sep (peak)
35	Perennial Wooly Bean	Strophostyles umbellata	Legumes	10	Sep (peak)
36	American jumpseed	Persicaria virginiana	knotweed family	10	Aug (past peak)
37	Whitemouth Dayflower	Commelina erecta	Spiderworts	9	Jun (past peak)
38	American trumpet vine	Campsis radicans	bignonia family	9	Aug (past peak)
39	Butterfly Milkweed	Asclepias tuberosa	Dogbane Family	8	Jun (past peak)
40	Lanceleaf Frogfruit	Phyla lanceolata	Verbena Family	8	Jul (past peak)
41	Fall Phlox	Phlox paniculata	phlox family	8	Sep (peak)
42	Hairy Ruellia	Ruellia humilis	Acanthus Family	8	Jun (past peak)
43	Wild Potato Vine	Ipomoea pandurata	bindweed family	8	Jul (past peak)
44	brown-eyed Susan	Rudbeckia triloba	Sunflowers, Daisies, Asters, and Allies	8	Jul (past peak)
45	Eastern Black Nightshade	Solanum emulans	nightshade family	8	Jul (past peak)
46	Ghost Pipe	Monotropa uniflora	heath family	7	Sep (peak)
47	Green Antelopehorns	Asclepias viridis	Dogbane Family	7	May (past peak)
48	black-eyed Susan	Rudbeckia hirta	Sunflowers, Daisies, Asters, and Allies	7	Jun (past peak)
49	American germander	Teucrium canadense	Mint Family	7	Jul (past peak)
50	Pinkweed	Persicaria pensylvanica	knotweed family	7	Oct (rising)