60 wildflowers were recorded blooming in Texas in December in our iNaturalist sample; 0 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top wildflowers in December

Straggler Daisy

Henbit Deadnettle

Tropical sage

Lantana
Turk's cap

Siam weed

Santa Maria feverfew
Cowpen Daisy

Whitemouth Dayflower

Camphorweed

Texas lantana

Firewheel
All wildflowers blooming in Texas in December
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Straggler Daisy | Calyptocarpus vialis | Sunflowers, Daisies, Asters, and Allies | 137 | Apr (past peak) |
| 2 | Henbit Deadnettle | Lamium amplexicaule | Mint Family | 115 | Feb (past peak) |
| 3 | Tropical sage | Salvia coccinea | Mint Family | 99 | Apr (past peak) |
| 4 | Lantana | Lantana strigocamara | Verbena Family | 95 | Apr (past peak) |
| 5 | Turk's cap | Malvaviscus arboreus | Mallow and Hibiscus Family | 92 | May (past peak) |
| 6 | Siam weed | Chromolaena odorata | Sunflowers, Daisies, Asters, and Allies | 91 | Nov (past peak) |
| 7 | Santa Maria feverfew | Parthenium hysterophorus | Sunflowers, Daisies, Asters, and Allies | 67 | Apr (past peak) |
| 8 | Cowpen Daisy | Verbesina encelioides | Sunflowers, Daisies, Asters, and Allies | 64 | Apr (past peak) |
| 9 | Whitemouth Dayflower | Commelina erecta | Spiderworts | 56 | May (past peak) |
| 10 | Camphorweed | Heterotheca subaxillaris | Sunflowers, Daisies, Asters, and Allies | 52 | Oct (past peak) |
| 11 | Texas lantana | Lantana urticoides | Verbena Family | 46 | Apr (past peak) |
| 12 | Firewheel | Gaillardia pulchella | Sunflowers, Daisies, Asters, and Allies | 45 | Apr (past peak) |
| 13 | Shepherd's-Purse | Capsella bursa-pastoris | mustard family | 45 | Feb (past peak) |
| 14 | Frostweed | Verbesina virginica | Sunflowers, Daisies, Asters, and Allies | 43 | Oct (past peak) |
| 15 | Anacahuita | Cordia boissieri | borage family | 42 | Apr (past peak) |
| 16 | Crowpoison | Nothoscordum bivalve | amaryllis, onions, and allies | 40 | Mar (past peak) |
| 17 | Bitterweed | Helenium amarum | Sunflowers, Daisies, Asters, and Allies | 37 | Sep (past peak) |
| 18 | Pigeonberry | Rivina humilis | Petiveria Family | 37 | Apr (past peak) |
| 19 | Common Chickweed | Stellaria media | pink family | 28 | Feb (past peak) |
| 20 | Silverleaf Nightshade | Solanum elaeagnifolium | nightshade family | 27 | Apr (past peak) |
| 21 | Dakota mock vervain | Glandularia bipinnatifida | Verbena Family | 27 | Apr (past peak) |
| 22 | Tievine | Ipomoea cordatotriloba | bindweed family | 27 | Sep (past peak) |
| 23 | Plains Coreopsis | Coreopsis tinctoria | Sunflowers, Daisies, Asters, and Allies | 26 | May (past peak) |
| 24 | Upright Prairie Coneflower | Ratibida columnifera | Sunflowers, Daisies, Asters, and Allies | 26 | May (past peak) |
| 25 | Texas creeping-oxeye | Wedelia hispida | Sunflowers, Daisies, Asters, and Allies | 25 | Apr (past peak) |
| 26 | Blue Mistflower | Conoclinium coelestinum | Sunflowers, Daisies, Asters, and Allies | 23 | Oct (past peak) |
| 27 | Blackfoot Daisy | Melampodium leucanthum | Sunflowers, Daisies, Asters, and Allies | 22 | Apr (past peak) |
| 28 | Common Sunflower | Helianthus annuus | Sunflowers, Daisies, Asters, and Allies | 20 | Jun (past peak) |
| 29 | Redstem Stork's-bill | Erodium cicutarium | Geranium family | 19 | Mar (past peak) |
| 30 | Gregg's tube tongue | Justicia pilosella | Acanthus Family | 19 | Apr (past peak) |
| 31 | Snapdragon Vine | Maurandella antirrhiniflora | Plantain Family | 18 | Apr (past peak) |
| 32 | Alamo vine | Distimake dissectus | bindweed family | 18 | Sep (past peak) |
| 33 | White beggarticks | Bidens alba | Sunflowers, Daisies, Asters, and Allies | 18 | Jan (past peak) |
| 34 | Mexican palo verde | Parkinsonia aculeata | Legumes | 17 | Apr (past peak) |
| 35 | Oriental false hawksbeard | Youngia japonica | Sunflowers, Daisies, Asters, and Allies | 17 | Mar (past peak) |
| 36 | black-eyed Susan | Rudbeckia hirta | Sunflowers, Daisies, Asters, and Allies | 16 | May (past peak) |
| 37 | Field madder | Sherardia arvensis | madder family | 15 | Apr (past peak) |
| 38 | Purple Groundcherry | Quincula lobata | nightshade family | 15 | Apr (past peak) |
| 39 | American Witch-Hazel | Hamamelis virginiana | witch-hazel family | 15 | Nov (past peak) |
| 40 | Sea Ox-Eye | Borrichia frutescens | Sunflowers, Daisies, Asters, and Allies | 15 | Apr (past peak) |
| 41 | Largeleaf Pennywort | Hydrocotyle bonariensis | ivy family | 15 | May (past peak) |
| 42 | Sunshine Mimosa | Mimosa strigillosa | Legumes | 15 | Apr (past peak) |
| 43 | Tree Tobacco | Nicotiana glauca | nightshade family | 14 | Nov (past peak) |
| 44 | Catchfly Prairie Gentian | Eustoma exaltatum | gentian family | 14 | Jun (past peak) |
| 45 | Common Dandelion | Taraxacum officinale | Sunflowers, Daisies, Asters, and Allies | 13 | Feb (past peak) |
| 46 | False Daisy | Eclipta prostrata | Sunflowers, Daisies, Asters, and Allies | 13 | Oct (past peak) |
| 47 | Tenpetal Anemone | Anemone berlandieri | buttercup family | 13 | Mar (past peak) |
| 48 | Pinkladies | Oenothera speciosa | evening primrose family | 11 | Apr (past peak) |
| 49 | Bird's-Eye Speedwell | Veronica persica | Plantain Family | 10 | Feb (past peak) |
| 50 | Black Medick | Medicago lupulina | Legumes | 10 | Mar (past peak) |