58 wildflowers were recorded blooming in Oregon in December in our iNaturalist sample; 2 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top wildflowers in December

Lawn daisy

Herb Robert

Common Groundsel

Ragwort

Common Yarrow

Coyote Brush

Salal

Common Selfheal

Scotch Broom
Wild Carrot
Common Chickweed

Candy Flower
All wildflowers blooming in Oregon in December
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Lawn daisy | Bellis perennis | Sunflowers, Daisies, Asters, and Allies | 35 | Apr (past peak) |
| 2 | Herb Robert | Geranium robertianum | Geranium family | 28 | May (past peak) |
| 3 | Common Groundsel | Senecio vulgaris | Sunflowers, Daisies, Asters, and Allies | 24 | Apr (past peak) |
| 4 | Ragwort | Jacobaea vulgaris | Sunflowers, Daisies, Asters, and Allies | 20 | Jul (past peak) |
| 5 | Common Yarrow | Achillea millefolium | Sunflowers, Daisies, Asters, and Allies | 12 | Jun (past peak) |
| 6 | Coyote Brush | Baccharis pilularis | Sunflowers, Daisies, Asters, and Allies | 12 | Sep (past peak) |
| 7 | Salal | Gaultheria shallon | heath family | 8 | May (past peak) |
| 8 | Common Selfheal | Prunella vulgaris | Mint Family | 8 | Jun (past peak) |
| 9 | Scotch Broom | Cytisus scoparius | Legumes | 7 | May (past peak) |
| 10 | Wild Carrot | Daucus carota | carrot family | 7 | Jul (past peak) |
| 11 | Common Chickweed | Stellaria media | pink family | 6 | Apr (past peak) |
| 12 | Candy Flower | Claytonia sibirica | Pussypaw Family | 6 | Apr (past peak) |
| 13 | California poppy | Eschscholzia californica | Poppy Family | 5 | May (past peak) |
| 14 | Threeleaf Foamflower | Tiarella trifoliata | saxifrage family | 5 | Jul (past peak) |
| 15 | Common Cat's-ear | Hypochaeris radicata | Sunflowers, Daisies, Asters, and Allies | 5 | Jun (past peak) |
| 16 | European Searocket | Cakile maritima | mustard family | 5 | Oct (past peak) |
| 17 | Hairy Bittercress | Cardamine hirsuta | mustard family | 4 | Mar (past peak) |
| 18 | Common Dandelion | Taraxacum officinale | Sunflowers, Daisies, Asters, and Allies | 3 | Apr (past peak) |
| 19 | Bull Thistle | Cirsium vulgare | Sunflowers, Daisies, Asters, and Allies | 3 | Aug (past peak) |
| 20 | Wild radish | Raphanus raphanistrum | mustard family | 3 | Sep (past peak) |
| 21 | Oxeye Daisy | Leucanthemum vulgare | Sunflowers, Daisies, Asters, and Allies | 3 | May (past peak) |
| 22 | Moth Mullein | Verbascum blattaria | figwort family | 3 | Jun (past peak) |
| 23 | Redstem Stork's-bill | Erodium cicutarium | Geranium family | 2 | Apr (past peak) |
| 24 | Red Clover | Trifolium pratense | Legumes | 2 | May (past peak) |
| 25 | Pearly Everlasting | Anaphalis margaritacea | Sunflowers, Daisies, Asters, and Allies | 2 | Aug (past peak) |
| 26 | Bird's-Eye Speedwell | Veronica persica | Plantain Family | 2 | Apr (past peak) |
| 27 | Shepherd's-Purse | Capsella bursa-pastoris | mustard family | 2 | Mar (past peak) |
| 28 | Armenian Blackberry | Rubus armeniacus | rose family | 2 | Jun (past peak) |
| 29 | Deptford pink | Dianthus armeria | pink family | 2 | Jun (past peak) |
| 30 | Spotted Knapweed | Centaurea stoebe | Sunflowers, Daisies, Asters, and Allies | 2 | Aug (past peak) |
| 31 | Annual Fleabane | Erigeron annuus | Sunflowers, Daisies, Asters, and Allies | 2 | Nov (past peak) |
| 32 | White Campion | Silene latifolia | pink family | 2 | Dec (peak) |
| 33 | Western Columbine | Aquilegia formosa | buttercup family | 1 | May (past peak) |
| 34 | American pokeweed | Phytolacca americana | Pokeweed Family | 1 | Sep (past peak) |
| 35 | Seaside Daisy | Erigeron glaucus | Sunflowers, Daisies, Asters, and Allies | 1 | Jan (past peak) |
| 36 | Milk Thistle | Silybum marianum | Sunflowers, Daisies, Asters, and Allies | 1 | Jun (past peak) |
| 37 | Chicory | Cichorium intybus | Sunflowers, Daisies, Asters, and Allies | 1 | Jul (past peak) |
| 38 | Pineapple-Weed | Matricaria discoidea | Sunflowers, Daisies, Asters, and Allies | 1 | Nov (past peak) |
| 39 | Dove's-foot crane's-bill | Geranium molle | Geranium family | 1 | Apr (past peak) |
| 40 | Ribwort Plantain | Plantago lanceolata | Plantain Family | 1 | May (past peak) |
| 41 | White Clover | Trifolium repens | Legumes | 1 | May (past peak) |
| 42 | Lesser Periwinkle | Vinca minor | Dogbane Family | 1 | Apr (past peak) |
| 43 | Red Deadnettle | Lamium purpureum | Mint Family | 1 | Apr (past peak) |
| 44 | Annual Honesty | Lunaria annua | mustard family | 1 | Apr (past peak) |
| 45 | Nipplewort | Lapsana communis | Sunflowers, Daisies, Asters, and Allies | 1 | Jun (past peak) |
| 46 | Wild Teasel | Dipsacus fullonum | honeysuckle family | 1 | Jul (past peak) |
| 47 | Little-Robin | Geranium purpureum | Geranium family | 1 | Dec (peak) |
| 48 | Common Sunflower | Helianthus annuus | Sunflowers, Daisies, Asters, and Allies | 1 | Aug (past peak) |
| 49 | White Sweetclover | Melilotus albus | Legumes | 1 | Aug (past peak) |
| 50 | Great Mullein | Verbascum thapsus | figwort family | 1 | Jul (past peak) |