Wildflowers Blooming in Idaho in October (55 Species)

55 wildflowers were recorded blooming in Idaho in October in our iNaturalist sample; 7 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 October

Spotted Knapweed14 obs.

Curlycup Gumweed12 obs.

Redstem Stork's-bill8 obs.

Pearly Everlasting8 obs.

Common Toadflax6 obs.

White Sweetclover6 obs.

Common Dandelion5 obs.

Common St. John's Wort5 obs.

All wildflowers blooming in Idaho in October

#	Species	Scientific name	Family	Obs.	Peak in state
1	Spotted Knapweed	Centaurea stoebe	Sunflowers, Daisies, Asters, and Allies	14	Oct (peak)
2	Curlycup Gumweed	Grindelia squarrosa	Sunflowers, Daisies, Asters, and Allies	12	Aug (past peak)
3	Redstem Stork's-bill	Erodium cicutarium	Geranium family	8	Apr (past peak)
4	Pearly Everlasting	Anaphalis margaritacea	Sunflowers, Daisies, Asters, and Allies	8	Aug (past peak)
5	Alfalfa	Medicago sativa	Legumes	8	Oct (peak)
6	Great Mullein	Verbascum thapsus	figwort family	8	Jul (past peak)
7	Common Tansy	Tanacetum vulgare	Sunflowers, Daisies, Asters, and Allies	7	Jul (past peak)
8	Dwarf Mallow	Malva neglecta	Mallow and Hibiscus Family	7	Sep (past peak)
9	Common Toadflax	Linaria vulgaris	Plantain Family	6	Aug (past peak)
10	White Sweetclover	Melilotus albus	Legumes	6	Aug (past peak)
11	Common Dandelion	Taraxacum officinale	Sunflowers, Daisies, Asters, and Allies	5	Nov (rising)
12	Common St. John's Wort	Hypericum perforatum	St. John's wort family	5	Jul (past peak)
13	Rubber Rabbitbrush	Ericameria nauseosa	Sunflowers, Daisies, Asters, and Allies	5	Sep (past peak)
14	Puncture Vine	Tribulus terrestris	caltrops	5	Aug (past peak)
15	Rocky Mountain Beeplant	Cleomella serrulata	Spider Flower Family	5	Aug (past peak)
16	Common Yarrow	Achillea millefolium	Sunflowers, Daisies, Asters, and Allies	4	Jul (past peak)
17	Chicory	Cichorium intybus	Sunflowers, Daisies, Asters, and Allies	3	Jul (past peak)
18	Bull Thistle	Cirsium vulgare	Sunflowers, Daisies, Asters, and Allies	3	Jul (past peak)
19	Black Medick	Medicago lupulina	Legumes	3	Jun (past peak)
20	Yellow Sweetclover	Melilotus officinalis	Legumes	3	Jun (past peak)
21	Deptford pink	Dianthus armeria	pink family	3	Jul (past peak)
22	Fireweed	Chamaenerion angustifolium	evening primrose family	3	Jul (past peak)
23	Red Clover	Trifolium pratense	Legumes	2	Jun (past peak)
24	Common Sunflower	Helianthus annuus	Sunflowers, Daisies, Asters, and Allies	2	Aug (past peak)
25	Creeping Thistle	Cirsium arvense	Sunflowers, Daisies, Asters, and Allies	2	Aug (past peak)
26	Hoary Alyssum	Berteroa incana	mustard family	2	Jun (past peak)
27	Wild Carrot	Daucus carota	carrot family	2	Sep (past peak)
28	Flower-Of-An-Hour	Hibiscus trionum	Mallow and Hibiscus Family	2	Aug (past peak)
29	White Campion	Silene latifolia	pink family	2	Jul (past peak)
30	Scarlet Gilia	Ipomopsis aggregata	phlox family	1	Jul (past peak)
31	Poison Hemlock	Conium maculatum	carrot family	1	Jun (past peak)
32	Field Bindweed	Convolvulus arvensis	bindweed family	1	Jun (past peak)
33	Common Cat's-ear	Hypochaeris radicata	Sunflowers, Daisies, Asters, and Allies	1	Oct (peak)
34	Henbit Deadnettle	Lamium amplexicaule	Mint Family	1	Apr (past peak)
35	Bittersweet Nightshade	Solanum dulcamara	nightshade family	1	Jun (past peak)
36	White Clover	Trifolium repens	Legumes	1	Jun (past peak)
37	Oxeye Daisy	Leucanthemum vulgare	Sunflowers, Daisies, Asters, and Allies	1	Jun (past peak)
38	Common Soapwort	Saponaria officinalis	pink family	1	Aug (past peak)
39	Hairy Vetch	Vicia villosa	Legumes	1	Oct (peak)
40	Hooker's onion	Allium acuminatum	amaryllis, onions, and allies	1	Jun (past peak)
41	Broad-Leaved Sweet Pea	Lathyrus latifolius	Legumes	1	Jun (past peak)
42	Sulphur Cinquefoil	Potentilla recta	rose family	1	Oct (peak)
43	Pipsissewa	Chimaphila umbellata	heath family	1	Jul (past peak)
44	Arrowleaf Balsamroot	Balsamorhiza sagittata	Sunflowers, Daisies, Asters, and Allies	1	May (past peak)
45	black-eyed Susan	Rudbeckia hirta	Sunflowers, Daisies, Asters, and Allies	1	Oct (peak)
46	Musk Thistle	Carduus nutans	Sunflowers, Daisies, Asters, and Allies	1	Jul (past peak)
47	Plains Coreopsis	Coreopsis tinctoria	Sunflowers, Daisies, Asters, and Allies	1	Oct (peak)
48	Shrubby Cinquefoil	Dasiphora fruticosa	rose family	1	Jul (past peak)
49	Horseweed	Erigeron canadensis	Sunflowers, Daisies, Asters, and Allies	1	Sep (past peak)
50	Virginia strawberry	Fragaria virginiana	rose family	1	Jun (past peak)