60 wildflowers were recorded blooming in Arkansas in June in our iNaturalist sample; 27 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top wildflowers in June

Buttonbush

black-eyed Susan

Purple Passionflower

Butterfly Milkweed

American pokeweed

Plains Coreopsis

Redring Milkweed

Carolina horsenettle

Narrowleaf Mountainmint

Yellow Passionflower

American germander

Wild Bergamot
All wildflowers blooming in Arkansas in June
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Buttonbush | Cephalanthus occidentalis | madder family | 147 | Jul (rising) |
| 2 | black-eyed Susan | Rudbeckia hirta | Sunflowers, Daisies, Asters, and Allies | 108 | Jun (peak) |
| 3 | Purple Passionflower | Passiflora incarnata | Passionfruit Family | 82 | Jul (rising) |
| 4 | Butterfly Milkweed | Asclepias tuberosa | Dogbane Family | 79 | Jun (peak) |
| 5 | American pokeweed | Phytolacca americana | Pokeweed Family | 75 | Jul (rising) |
| 6 | Plains Coreopsis | Coreopsis tinctoria | Sunflowers, Daisies, Asters, and Allies | 71 | Jun (peak) |
| 7 | Redring Milkweed | Asclepias variegata | Dogbane Family | 71 | May (past peak) |
| 8 | Carolina horsenettle | Solanum carolinense | nightshade family | 56 | Jun (peak) |
| 9 | Narrowleaf Mountainmint | Pycnanthemum tenuifolium | Mint Family | 50 | Jun (peak) |
| 10 | Yellow Passionflower | Passiflora lutea | Passionfruit Family | 49 | Jun (peak) |
| 11 | American germander | Teucrium canadense | Mint Family | 41 | Jul (rising) |
| 12 | Wild Bergamot | Monarda fistulosa | Mint Family | 35 | Jun (peak) |
| 13 | Anglepod | Gonolobus suberosus | Dogbane Family | 35 | Jun (peak) |
| 14 | Hairy Ruellia | Ruellia humilis | Acanthus Family | 34 | Jun (peak) |
| 15 | Common Jewelweed | Impatiens capensis | balsam family | 33 | Jun (peak) |
| 16 | Asiatic dayflower | Commelina communis | Spiderworts | 33 | Sep (rising) |
| 17 | Ribwort Plantain | Plantago lanceolata | Plantain Family | 33 | Jun (peak) |
| 18 | Whitemouth Dayflower | Commelina erecta | Spiderworts | 31 | Jun (peak) |
| 19 | Wild Carrot | Daucus carota | carrot family | 30 | Jun (peak) |
| 20 | American black elderberry | Sambucus canadensis | elder family | 30 | Jun (peak) |
| 21 | Pale-Spiked Lobelia | Lobelia spicata | bellflower family | 30 | Jun (peak) |
| 22 | American water-willow | Justicia americana | Acanthus Family | 28 | May (past peak) |
| 23 | American trumpet vine | Campsis radicans | bignonia family | 26 | Aug (rising) |
| 24 | Purple Coneflower | Echinacea purpurea | Sunflowers, Daisies, Asters, and Allies | 25 | Jun (peak) |
| 25 | Pigeonwings | Clitoria mariana | Legumes | 24 | Jul (rising) |
| 26 | Musk Thistle | Carduus nutans | Sunflowers, Daisies, Asters, and Allies | 23 | May (past peak) |
| 27 | Wild Potato Vine | Ipomoea pandurata | bindweed family | 23 | Jul (rising) |
| 28 | Purple Milkweed | Asclepias purpurascens | Dogbane Family | 22 | May (past peak) |
| 29 | Rattlesnake Master | Eryngium yuccifolium | carrot family | 22 | Jul (rising) |
| 30 | Persian silk tree | Albizia julibrissin | Legumes | 21 | Jun (peak) |
| 31 | American beautyberry | Callicarpa americana | Mint Family | 21 | Jun (peak) |
| 32 | Smooth Sumac | Rhus glabra | Cashew Family | 21 | Jun (peak) |
| 33 | Whorled Milkweed | Asclepias verticillata | Dogbane Family | 21 | Jun (peak) |
| 34 | Tall Bellflower | Campanulastrum americanum | bellflower family | 21 | Jul (rising) |
| 35 | Purple Prairie Clover | Dalea purpurea | Legumes | 20 | Jun (peak) |
| 36 | Bitterweed | Helenium amarum | Sunflowers, Daisies, Asters, and Allies | 20 | Aug (rising) |
| 37 | Poison Hemlock | Conium maculatum | carrot family | 17 | May (past peak) |
| 38 | Hemp Dogbane | Apocynum cannabinum | Dogbane Family | 17 | Jun (peak) |
| 39 | American groundnut | Apios americana | Legumes | 17 | Aug (rising) |
| 40 | Common Selfheal | Prunella vulgaris | Mint Family | 16 | May (past peak) |
| 41 | Common Yarrow | Achillea millefolium | Sunflowers, Daisies, Asters, and Allies | 16 | May (past peak) |
| 42 | Moth Mullein | Verbascum blattaria | figwort family | 16 | May (past peak) |
| 43 | White Avens | Geum canadense | rose family | 16 | Jun (peak) |
| 44 | Climbing Prairie Rose | Rosa setigera | rose family | 16 | Jun (peak) |
| 45 | New Jersey tea | Ceanothus americanus | buckthorn family | 16 | Jun (peak) |
| 46 | Pointed-Leaved Tick-Trefoil | Hylodesmum glutinosum | Legumes | 16 | Jun (peak) |
| 47 | Naked-Flowered Tick-Trefoil | Hylodesmum nudiflorum | Legumes | 16 | Jul (rising) |
| 48 | Goat's Rue | Tephrosia virginiana | Legumes | 15 | May (past peak) |
| 49 | Shining Sumac | Rhus copallinum | Cashew Family | 15 | Jun (peak) |
| 50 | Buttonweed | Diodia virginiana | madder family | 15 | Aug (rising) |