60 wildflowers were recorded blooming in Kansas in April in our iNaturalist sample; 34 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top wildflowers in April

Common Pawpaw

Dutchman's breeches

American field pansy

Henbit Deadnettle
Garlic Mustard

American bladdernut
Tall Blue Wild Indigo

Mayapple
common star-of-Bethlehem
American plum

Blue Phlox

Tiny Bluet
All wildflowers blooming in Kansas in April
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Common Pawpaw | Asimina triloba | custard-apples | 113 | Apr (peak) |
| 2 | Dutchman's breeches | Dicentra cucullaria | Poppy Family | 73 | Apr (peak) |
| 3 | American field pansy | Viola rafinesquei | Violet Family | 66 | Apr (peak) |
| 4 | Henbit Deadnettle | Lamium amplexicaule | Mint Family | 65 | Apr (peak) |
| 5 | Garlic Mustard | Alliaria petiolata | mustard family | 46 | Apr (peak) |
| 6 | American bladdernut | Staphylea trifolia | bladdernut family | 44 | Apr (peak) |
| 7 | Tall Blue Wild Indigo | Baptisia australis | Legumes | 35 | May (rising) |
| 8 | Mayapple | Podophyllum peltatum | barberry family | 30 | Apr (peak) |
| 9 | common star-of-Bethlehem | Ornithogalum umbellatum | agave and allies | 30 | Apr (peak) |
| 10 | American plum | Prunus americana | rose family | 27 | Apr (peak) |
| 11 | Blue Phlox | Phlox divaricata | phlox family | 27 | Apr (peak) |
| 12 | Tiny Bluet | Houstonia pusilla | madder family | 21 | Apr (peak) |
| 13 | White Fawnlily | Erythronium albidum | lily family | 20 | Apr (peak) |
| 14 | Red Deadnettle | Lamium purpureum | Mint Family | 20 | Apr (peak) |
| 15 | Eastern Redbud | Cercis canadensis | Legumes | 18 | Apr (peak) |
| 16 | Ground-Ivy | Glechoma hederacea | Mint Family | 18 | Apr (peak) |
| 17 | Dame's Rocket | Hesperis matronalis | mustard family | 17 | May (rising) |
| 18 | Red Columbine | Aquilegia canadensis | buttercup family | 17 | May (rising) |
| 19 | False Rue Anemone | Enemion biternatum | buttercup family | 16 | Apr (peak) |
| 20 | Corn Gromwell | Buglossoides arvensis | borage family | 15 | Apr (peak) |
| 21 | Bloodroot | Sanguinaria canadensis | Poppy Family | 13 | Mar (past peak) |
| 22 | Virginia bluebells | Mertensia virginica | borage family | 13 | Apr (peak) |
| 23 | Amur honeysuckle | Lonicera maackii | honeysuckle family | 13 | May (rising) |
| 24 | Smooth Yellow Violet | Viola eriocarpa | Violet Family | 13 | Apr (peak) |
| 25 | Canadian lousewort | Pedicularis canadensis | broomrape family | 12 | Apr (peak) |
| 26 | Narrowleaf Puccoon | Lithospermum incisum | borage family | 12 | Apr (peak) |
| 27 | Violet Woodsorrel | Oxalis violacea | Woodsorrel Family | 12 | Apr (peak) |
| 28 | Green Antelopehorns | Asclepias viridis | Dogbane Family | 11 | May (rising) |
| 29 | Crowpoison | Nothoscordum bivalve | amaryllis, onions, and allies | 11 | Apr (peak) |
| 30 | Purple Groundcherry | Quincula lobata | nightshade family | 10 | May (rising) |
| 31 | Atlantic camas | Camassia scilloides | agave and allies | 9 | Apr (peak) |
| 32 | Toadshade | Trillium sessile | Herb-Paris, False Hellebores, Trilliums and allies | 9 | Apr (peak) |
| 33 | Cut-Leaved Toothwort | Cardamine concatenata | mustard family | 8 | Mar (past peak) |
| 34 | Field Penny-Cress | Thlaspi arvense | mustard family | 8 | Mar (past peak) |
| 35 | Virginia Springbeauty | Claytonia virginica | Pussypaw Family | 8 | Mar (past peak) |
| 36 | Common Dandelion | Taraxacum officinale | Sunflowers, Daisies, Asters, and Allies | 7 | Apr (peak) |
| 37 | Black Cherry | Prunus serotina | rose family | 7 | Apr (peak) |
| 38 | Golden Currant | Ribes aureum | Gooseberry Family | 7 | Apr (peak) |
| 39 | Lesser Periwinkle | Vinca minor | Dogbane Family | 7 | Mar (past peak) |
| 40 | Jack-in-the-Pulpit | Arisaema triphyllum | Arum Family | 6 | May (rising) |
| 41 | Small-Flowered Buttercup | Ranunculus abortivus | buttercup family | 6 | Apr (peak) |
| 42 | Lesser Celandine | Ficaria verna | buttercup family | 6 | Apr (peak) |
| 43 | Shepherd's-Purse | Capsella bursa-pastoris | mustard family | 5 | Mar (past peak) |
| 44 | Winecup Mallow | Callirhoe involucrata | Mallow and Hibiscus Family | 5 | Jun (rising) |
| 45 | Hoary Puccoon | Lithospermum canescens | borage family | 4 | May (rising) |
| 46 | Greater Periwinkle | Vinca major | Dogbane Family | 4 | Apr (peak) |
| 47 | White Clover | Trifolium repens | Legumes | 4 | May (rising) |
| 48 | Philadelphia fleabane | Erigeron philadelphicus | Sunflowers, Daisies, Asters, and Allies | 4 | Apr (peak) |
| 49 | Winged Euonymus | Euonymus alatus | staff-vine family | 4 | Apr (peak) |
| 50 | Blackhaw | Viburnum prunifolium | elder family | 4 | Apr (peak) |