51 wildflowers were recorded blooming in Nevada in October in our iNaturalist sample; 6 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top wildflowers in October

Chinchweed

Desert Marigold

Trailing Windmills

Rubber Rabbitbrush

Sacred Datura
Rush Milkweed

Desert Willow
Apricot Globemallow

Alkali Heliotrope

Creosote Bush

Desert Trumpet

Mojave Woodyaster
All wildflowers blooming in Nevada in October
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Chinchweed | Pectis papposa | Sunflowers, Daisies, Asters, and Allies | 60 | Oct (peak) |
| 2 | Desert Marigold | Baileya multiradiata | Sunflowers, Daisies, Asters, and Allies | 31 | Apr (past peak) |
| 3 | Trailing Windmills | Allionia incarnata | four o'clock family | 31 | May (past peak) |
| 4 | Rubber Rabbitbrush | Ericameria nauseosa | Sunflowers, Daisies, Asters, and Allies | 28 | Sep (past peak) |
| 5 | Sacred Datura | Datura wrightii | nightshade family | 25 | Sep (past peak) |
| 6 | Rush Milkweed | Asclepias subulata | Dogbane Family | 19 | May (past peak) |
| 7 | Desert Willow | Chilopsis linearis | bignonia family | 15 | May (past peak) |
| 8 | Apricot Globemallow | Sphaeralcea ambigua | Mallow and Hibiscus Family | 13 | Apr (past peak) |
| 9 | Alkali Heliotrope | Heliotropium curassavicum | borage family | 12 | Apr (past peak) |
| 10 | Creosote Bush | Larrea tridentata | caltrops | 12 | Apr (past peak) |
| 11 | Desert Trumpet | Eriogonum inflatum | knotweed family | 9 | May (past peak) |
| 12 | Mojave Woodyaster | Xylorhiza tortifolia | Sunflowers, Daisies, Asters, and Allies | 9 | Apr (past peak) |
| 13 | Desert Tobacco | Nicotiana obtusifolia | nightshade family | 7 | Mar (past peak) |
| 14 | Thickleaf Groundcherry | Physalis crassifolia | nightshade family | 7 | Apr (past peak) |
| 15 | Paperbag Bush | Scutellaria mexicana | Mint Family | 7 | May (past peak) |
| 16 | Marsh Fleabane | Pluchea odorata | Sunflowers, Daisies, Asters, and Allies | 6 | Sep (past peak) |
| 17 | Parish's Goldeneye | Bahiopsis parishii | Sunflowers, Daisies, Asters, and Allies | 6 | Apr (past peak) |
| 18 | Tall Evening Primrose | Oenothera elata | evening primrose family | 5 | Jul (past peak) |
| 19 | Mule Fat | Baccharis salicifolia | Sunflowers, Daisies, Asters, and Allies | 5 | Oct (peak) |
| 20 | Tree Tobacco | Nicotiana glauca | nightshade family | 5 | Nov (rising) |
| 21 | Lewis flax | Linum lewisii | Flax Family | 5 | Jun (past peak) |
| 22 | Puncture Vine | Tribulus terrestris | caltrops | 5 | Sep (past peak) |
| 23 | California Buckwheat | Eriogonum fasciculatum | knotweed family | 4 | Apr (past peak) |
| 24 | Common Sunflower | Helianthus annuus | Sunflowers, Daisies, Asters, and Allies | 4 | Sep (past peak) |
| 25 | White Sweetclover | Melilotus albus | Legumes | 4 | Jul (past peak) |
| 26 | Anderson's thistle | Cirsium andersonii | Sunflowers, Daisies, Asters, and Allies | 4 | Jul (past peak) |
| 27 | Sweetbush | Bebbia juncea | Sunflowers, Daisies, Asters, and Allies | 4 | Apr (past peak) |
| 28 | Sulfur Buckwheat | Eriogonum umbellatum | knotweed family | 4 | Jul (past peak) |
| 29 | Wishbone Bush | Mirabilis laevis | four o'clock family | 4 | Apr (past peak) |
| 30 | Bigelow's monkeyflower | Diplacus bigelovii | lopseed family | 4 | Apr (past peak) |
| 31 | Western Columbine | Aquilegia formosa | buttercup family | 3 | Jun (past peak) |
| 32 | Scarlet Gilia | Ipomopsis aggregata | phlox family | 3 | Jul (past peak) |
| 33 | Cobwebby Thistle | Cirsium occidentale | Sunflowers, Daisies, Asters, and Allies | 3 | Jun (past peak) |
| 34 | Great Mullein | Verbascum thapsus | figwort family | 3 | Jul (past peak) |
| 35 | Fendler's Sandmat | Euphorbia fendleri | Spurge Family | 3 | Jun (past peak) |
| 36 | Rocky Mountain Beeplant | Cleomella serrulata | Spider Flower Family | 3 | Aug (past peak) |
| 37 | Common Yarrow | Achillea millefolium | Sunflowers, Daisies, Asters, and Allies | 2 | Jun (past peak) |
| 38 | Spanish needle | Palafoxia arida | Sunflowers, Daisies, Asters, and Allies | 2 | Apr (past peak) |
| 39 | Silverleaf Nightshade | Solanum elaeagnifolium | nightshade family | 2 | Sep (past peak) |
| 40 | Common Dandelion | Taraxacum officinale | Sunflowers, Daisies, Asters, and Allies | 1 | Oct (peak) |
| 41 | Pinkladies | Oenothera speciosa | evening primrose family | 1 | Oct (peak) |
| 42 | Field Bindweed | Convolvulus arvensis | bindweed family | 1 | Jun (past peak) |
| 43 | Naked Buckwheat | Eriogonum nudum | knotweed family | 1 | Jul (past peak) |
| 44 | Yellow Salsify | Tragopogon dubius | Sunflowers, Daisies, Asters, and Allies | 1 | Jun (past peak) |
| 45 | California Barrel Cactus | Ferocactus cylindraceus | cacti | 1 | Jun (past peak) |
| 46 | Lawn daisy | Bellis perennis | Sunflowers, Daisies, Asters, and Allies | 1 | Oct (peak) |
| 47 | White Clover | Trifolium repens | Legumes | 1 | Aug (past peak) |
| 48 | Common Soapwort | Saponaria officinalis | pink family | 1 | Aug (past peak) |
| 49 | Black Medick | Medicago lupulina | Legumes | 1 | Feb (past peak) |
| 50 | Narrowleaf Goldenbush | Ericameria linearifolia | Sunflowers, Daisies, Asters, and Allies | 1 | Oct (peak) |