Wildflowers Blooming in Texas in September (60 Species)

60 wildflowers were recorded blooming in Texas in September in our iNaturalist sample; 15 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Top wildflowers in September

Brazos rain-lily613 obs.

Tievine525 obs.

Whitemouth Dayflower391 obs.

Zizotes milkweed344 obs.

Silverleaf Nightshade341 obs.

Turk's cap269 obs.

Purple Passionflower268 obs.

Frostweed235 obs.

Lantana231 obs.

Late Boneset230 obs.

Scarletfruit Passionflower202 obs.

Cowpen Daisy182 obs.

All wildflowers blooming in Texas in September

#	Species	Scientific name	Family	Obs.	Peak in state
1	Brazos rain-lily	Zephyranthes chlorosolen	amaryllis, onions, and allies	613	Sep (peak)
2	Tievine	Ipomoea cordatotriloba	bindweed family	525	Sep (peak)
3	Whitemouth Dayflower	Commelina erecta	Spiderworts	391	May (past peak)
4	Zizotes milkweed	Asclepias oenotheroides	Dogbane Family	344	Sep (peak)
5	Silverleaf Nightshade	Solanum elaeagnifolium	nightshade family	341	Apr (past peak)
6	Turk's cap	Malvaviscus arboreus	Mallow and Hibiscus Family	269	May (past peak)
7	Purple Passionflower	Passiflora incarnata	Passionfruit Family	268	May (past peak)
8	Frostweed	Verbesina virginica	Sunflowers, Daisies, Asters, and Allies	235	Oct (rising)
9	Lantana	Lantana strigocamara	Verbena Family	231	Apr (past peak)
10	Late Boneset	Eupatorium serotinum	Sunflowers, Daisies, Asters, and Allies	230	Sep (peak)
11	Scarletfruit Passionflower	Passiflora lanuginosa	Passionfruit Family	202	Sep (peak)
12	Cowpen Daisy	Verbesina encelioides	Sunflowers, Daisies, Asters, and Allies	182	Apr (past peak)
13	Texas creeping-oxeye	Wedelia hispida	Sunflowers, Daisies, Asters, and Allies	169	Apr (past peak)
14	Green Antelopehorns	Asclepias viridis	Dogbane Family	161	Apr (past peak)
15	Common Wild Petunia	Ruellia nudiflora	Acanthus Family	161	Jul (past peak)
16	Straggler Daisy	Calyptocarpus vialis	Sunflowers, Daisies, Asters, and Allies	159	Apr (past peak)
17	Blue Mistflower	Conoclinium coelestinum	Sunflowers, Daisies, Asters, and Allies	149	Oct (rising)
18	Buffalo-Bur	Solanum rostratum	nightshade family	144	Sep (peak)
19	Tropical sage	Salvia coccinea	Mint Family	140	Apr (past peak)
20	Turkey Tangle Frogfruit	Phyla nodiflora	Verbena Family	137	Apr (past peak)
21	Common Sunflower	Helianthus annuus	Sunflowers, Daisies, Asters, and Allies	134	Jun (past peak)
22	Bitterweed	Helenium amarum	Sunflowers, Daisies, Asters, and Allies	134	Sep (peak)
23	Yellow Passionflower	Passiflora lutea	Passionfruit Family	120	Jun (past peak)
24	Cardinal Flower	Lobelia cardinalis	bellflower family	115	Sep (peak)
25	Texas Skeleton Plant	Lygodesmia texana	Sunflowers, Daisies, Asters, and Allies	115	May (past peak)
26	Climbing Hempvine	Mikania scandens	Sunflowers, Daisies, Asters, and Allies	114	Oct (rising)
27	Purple Groundcherry	Quincula lobata	nightshade family	108	Apr (past peak)
28	Pigeonberry	Rivina humilis	Petiveria Family	108	Apr (past peak)
29	Trailing Fuzzy-Bean	Strophostyles helvola	Legumes	107	Sep (peak)
30	Alamo vine	Distimake dissectus	bindweed family	107	Sep (peak)
31	Blue Curls	Trichostema dichotomum	Mint Family	105	Sep (peak)
32	Texas lantana	Lantana urticoides	Verbena Family	96	Apr (past peak)
33	Santa Maria feverfew	Parthenium hysterophorus	Sunflowers, Daisies, Asters, and Allies	94	Apr (past peak)
34	Partridge Pea	Chamaecrista fasciculata	Legumes	94	Sep (peak)
35	Camphorweed	Heterotheca subaxillaris	Sunflowers, Daisies, Asters, and Allies	83	Oct (rising)
36	Perennial Wooly Bean	Strophostyles umbellata	Legumes	82	Sep (peak)
37	Gregg's tube tongue	Justicia pilosella	Acanthus Family	82	Apr (past peak)
38	Snapdragon Vine	Maurandella antirrhiniflora	Plantain Family	79	Apr (past peak)
39	Tall Goldenrod	Solidago altissima	Sunflowers, Daisies, Asters, and Allies	77	Oct (rising)
40	Blackfoot Daisy	Melampodium leucanthum	Sunflowers, Daisies, Asters, and Allies	77	Apr (past peak)
41	White Morning-glory	Ipomoea lacunosa	bindweed family	77	Sep (peak)
42	Sunshine Mimosa	Mimosa strigillosa	Legumes	74	Apr (past peak)
43	American water-willow	Justicia americana	Acanthus Family	73	Apr (past peak)
44	American trumpet vine	Campsis radicans	bignonia family	72	Jul (past peak)
45	Upright Prairie Coneflower	Ratibida columnifera	Sunflowers, Daisies, Asters, and Allies	72	May (past peak)
46	Buttonweed	Diodia virginiana	madder family	72	Sep (peak)
47	Dakota mock vervain	Glandularia bipinnatifida	Verbena Family	70	Apr (past peak)
48	Shaggy Portulaca	Portulaca pilosa	purslane family	69	Jul (past peak)
49	Hairy Ruellia	Ruellia humilis	Acanthus Family	67	Jul (past peak)
50	Buttonbush	Cephalanthus occidentalis	madder family	62	Jun (past peak)