46 wildflowers were recorded blooming in Colorado in April 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.
Top wildflowers in April
American plum
Prairie Pasqueflower
Common Starlily
Creeping Mahonia
Redstem Stork's-bill
Golden Currant
Common Dandelion
Chokecherry
Purple Groundcherry
Bearberry
Henbit Deadnettle
American field pansy
All wildflowers blooming in Colorado in April
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | American plum | Prunus americana | rose family | 623 | Apr (peak) |
| 2 | Prairie Pasqueflower | Pulsatilla nuttalliana | buttercup family | 524 | May (rising) |
| 3 | Common Starlily | Leucocrinum montanum | agave and allies | 312 | May (rising) |
| 4 | Creeping Mahonia | Berberis repens | barberry family | 96 | May (rising) |
| 5 | Redstem Stork's-bill | Erodium cicutarium | Geranium family | 95 | May (rising) |
| 6 | Golden Currant | Ribes aureum | Gooseberry Family | 87 | Apr (peak) |
| 7 | Common Dandelion | Taraxacum officinale | Sunflowers, Daisies, Asters, and Allies | 62 | Apr (peak) |
| 8 | Chokecherry | Prunus virginiana | rose family | 59 | May (rising) |
| 9 | Purple Groundcherry | Quincula lobata | nightshade family | 55 | May (rising) |
| 10 | Bearberry | Arctostaphylos uva-ursi | heath family | 47 | May (rising) |
| 11 | Henbit Deadnettle | Lamium amplexicaule | Mint Family | 39 | Apr (peak) |
| 12 | American field pansy | Viola rafinesquei | Violet Family | 34 | Apr (peak) |
| 13 | Saskatoon | Amelanchier alnifolia | rose family | 33 | Jun (rising) |
| 14 | Upland Larkspur | Delphinium nuttallianum | buttercup family | 29 | Jun (rising) |
| 15 | Western Wallflower | Erysimum capitatum | mustard family | 28 | Jun (rising) |
| 16 | Common Lilac | Syringa vulgaris | olive family | 26 | May (rising) |
| 17 | Sagebrush Buttercup | Ranunculus glaberrimus | buttercup family | 24 | Apr (peak) |
| 18 | Narrowleaf Puccoon | Lithospermum incisum | borage family | 22 | May (rising) |
| 19 | Bastard Toadflax | Comandra umbellata | sandalwood family | 20 | May (rising) |
| 20 | Field Penny-Cress | Thlaspi arvense | mustard family | 20 | May (rising) |
| 21 | Box Elder | Acer negundo | soapberry family | 19 | Apr (peak) |
| 22 | Scarlet Globemallow | Sphaeralcea coccinea | Mallow and Hibiscus Family | 18 | Jun (rising) |
| 23 | Shepherd's-Purse | Capsella bursa-pastoris | mustard family | 16 | Apr (peak) |
| 24 | Dwarf Mallow | Malva neglecta | Mallow and Hibiscus Family | 14 | Sep (rising) |
| 25 | Annual Honesty | Lunaria annua | mustard family | 13 | May (rising) |
| 26 | Lesser Periwinkle | Vinca minor | Dogbane Family | 12 | May (rising) |
| 27 | Notch-leaf Scorpionweed | Phacelia crenulata | borage family | 11 | May (rising) |
| 28 | Glacier Lily | Erythronium grandiflorum | lily family | 11 | Jun (rising) |
| 29 | Canada Violet | Viola canadensis | Violet Family | 9 | Jun (rising) |
| 30 | Yellow Fritillary | Fritillaria pudica | lily family | 9 | Apr (peak) |
| 31 | Bird's-Eye Speedwell | Veronica persica | Plantain Family | 8 | Apr (peak) |
| 32 | Lewis flax | Linum lewisii | Flax Family | 8 | Jul (rising) |
| 33 | Blue Columbine | Aquilegia coerulea | buttercup family | 7 | Jul (rising) |
| 34 | Bitter Wintercress | Barbarea vulgaris | mustard family | 6 | Apr (peak) |
| 35 | Scarlet Gilia | Ipomopsis aggregata | phlox family | 5 | Jul (rising) |
| 36 | Common Groundsel | Senecio vulgaris | Sunflowers, Daisies, Asters, and Allies | 5 | Apr (peak) |
| 37 | Pineapple-Weed | Matricaria discoidea | Sunflowers, Daisies, Asters, and Allies | 4 | Apr (peak) |
| 38 | Field Bindweed | Convolvulus arvensis | bindweed family | 4 | Jun (rising) |
| 39 | Red Deadnettle | Lamium purpureum | Mint Family | 4 | Apr (peak) |
| 40 | Antelope Bitterbrush | Purshia tridentata | rose family | 4 | Jun (rising) |
| 41 | Blackfoot Daisy | Melampodium leucanthum | Sunflowers, Daisies, Asters, and Allies | 4 | May (rising) |
| 42 | Sego Lily | Calochortus nuttallii | lily family | 4 | Jun (rising) |
| 43 | Woodland Strawberry | Fragaria vesca | rose family | 3 | May (rising) |
| 44 | Yellow Salsify | Tragopogon dubius | Sunflowers, Daisies, Asters, and Allies | 3 | Jun (rising) |
| 45 | Garlic Mustard | Alliaria petiolata | mustard family | 3 | May (rising) |
| 46 | Corn Gromwell | Buglossoides arvensis | borage family | 3 | Apr (peak) |