60 wildflowers were recorded blooming in California in March in our iNaturalist sample; 40 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top wildflowers in March
Redstem Stork's-bill

Checker Lily

Blue Dicks

Distant Phacelia
Desert Dandelion

Pacific trillium

Pacific hound's tongue

Desert Lily
Musk Stork's-Bill

California poppy

Arizona lupine

Notch-leaf Scorpionweed
All wildflowers blooming in California in March
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Redstem Stork's-bill | Erodium cicutarium | Geranium family | 4,001 | Mar (peak) |
| 2 | Checker Lily | Fritillaria affinis | lily family | 3,058 | Mar (peak) |
| 3 | Blue Dicks | Dipterostemon capitatus | agave and allies | 2,832 | Apr (rising) |
| 4 | Distant Phacelia | Phacelia distans | borage family | 2,397 | Mar (peak) |
| 5 | Desert Dandelion | Malacothrix glabrata | Sunflowers, Daisies, Asters, and Allies | 2,165 | Mar (peak) |
| 6 | Pacific trillium | Trillium ovatum | Herb-Paris, False Hellebores, Trilliums and allies | 2,155 | Mar (peak) |
| 7 | Pacific hound's tongue | Adelinia grandis | borage family | 2,105 | Mar (peak) |
| 8 | Desert Lily | Hesperocallis undulata | agave and allies | 1,949 | Mar (peak) |
| 9 | Musk Stork's-Bill | Erodium moschatum | Geranium family | 1,934 | Apr (rising) |
| 10 | California poppy | Eschscholzia californica | Poppy Family | 1,755 | Apr (rising) |
| 11 | Arizona lupine | Lupinus arizonicus | Legumes | 1,718 | Mar (peak) |
| 12 | Notch-leaf Scorpionweed | Phacelia crenulata | borage family | 1,714 | Mar (peak) |
| 13 | Mediterranean Stork's-bill | Erodium botrys | Geranium family | 1,678 | Apr (rising) |
| 14 | Henderson's shooting star | Primula hendersonii | primrose family | 1,644 | Mar (peak) |
| 15 | Warrior's Plume | Pedicularis densiflora | broomrape family | 1,627 | Mar (peak) |
| 16 | Chia | Salvia columbariae | Mint Family | 1,616 | Mar (peak) |
| 17 | Desert Chicory | Rafinesquia neomexicana | Sunflowers, Daisies, Asters, and Allies | 1,574 | Mar (peak) |
| 18 | Giant Wakerobin | Trillium chloropetalum | Herb-Paris, False Hellebores, Trilliums and allies | 1,527 | Mar (peak) |
| 19 | Desert Sunflower | Geraea canescens | Sunflowers, Daisies, Asters, and Allies | 1,523 | Mar (peak) |
| 20 | Browneyes | Chylismia claviformis | evening primrose family | 1,414 | Mar (peak) |
| 21 | Desert Sand Verbena | Abronia villosa | four o'clock family | 1,334 | Mar (peak) |
| 22 | Creosote Bush | Larrea tridentata | caltrops | 1,256 | Mar (peak) |
| 23 | Brittlebush | Encelia farinosa | Sunflowers, Daisies, Asters, and Allies | 1,238 | Mar (peak) |
| 24 | California Barrel Cactus | Ferocactus cylindraceus | cacti | 1,199 | Mar (peak) |
| 25 | Redmaids | Calandrinia menziesii | Pussypaw Family | 1,163 | Mar (peak) |
| 26 | Western Blue-Eyed Grass | Sisyrinchium bellum | iris family | 1,161 | Apr (rising) |
| 27 | Checkerbloom | Sidalcea malviflora | Mallow and Hibiscus Family | 1,118 | Apr (rising) |
| 28 | Tomcat Clover | Trifolium willdenovii | Legumes | 1,113 | Apr (rising) |
| 29 | California Golden Violet | Viola pedunculata | Violet Family | 1,099 | Mar (peak) |
| 30 | Emory's rockdaisy | Perityle emoryi | Sunflowers, Daisies, Asters, and Allies | 1,086 | Mar (peak) |
| 31 | Sand Blazingstar | Mentzelia involucrata | Stickleaf Family | 1,079 | Mar (peak) |
| 32 | Fremont's pincushion | Chaenactis fremontii | Sunflowers, Daisies, Asters, and Allies | 1,066 | Mar (peak) |
| 33 | Menzies' baby blue eyes | Nemophila menziesii | borage family | 1,059 | Mar (peak) |
| 34 | Desert Bluebells | Phacelia campanularia | borage family | 1,020 | Mar (peak) |
| 35 | Milkmaids | Cardamine californica | mustard family | 1,006 | Feb (past peak) |
| 36 | Fremont's Death Camas | Toxicoscordion fremontii | Herb-Paris, False Hellebores, Trilliums and allies | 995 | Mar (peak) |
| 37 | Little Gold Poppy | Eschscholzia minutiflora | Poppy Family | 927 | Mar (peak) |
| 38 | California buttercup | Ranunculus californicus | buttercup family | 911 | Mar (peak) |
| 39 | Ghost Flower | Mohavea confertiflora | Plantain Family | 868 | Mar (peak) |
| 40 | Wild Canterbury Bells | Phacelia minor | borage family | 866 | Mar (peak) |
| 41 | Fragrant Fritillary | Fritillaria liliacea | lily family | 851 | Mar (peak) |
| 42 | Western Joshua Tree | Yucca brevifolia | agave and allies | 834 | Mar (peak) |
| 43 | Rose Clover | Trifolium hirtum | Legumes | 831 | Apr (rising) |
| 44 | Whispering Bells | Emmenanthe penduliflora | borage family | 831 | Mar (peak) |
| 45 | Mojave desertstar | Monoptilon bellioides | Sunflowers, Daisies, Asters, and Allies | 829 | Mar (peak) |
| 46 | Chocolate Lily | Fritillaria biflora | lily family | 780 | Mar (peak) |
| 47 | California manroot | Marah fabacea | gourd family | 779 | Mar (peak) |
| 48 | White Clover | Trifolium repens | Legumes | 772 | Apr (rising) |
| 49 | Peninsular fishhook cactus | Cochemiea dioica | cacti | 771 | Mar (peak) |
| 50 | Goldpoppy | Eschscholzia parishii | Poppy Family | 764 | Mar (peak) |