Photo of common milkweed flower cluster

    Common Milkweed

    Asclepias syriaca
    Photo of goat's rue showing flower cluster

    Goat’s Rue (Hoary Pea)

    Tephrosia virginiana
    Photo of whorled milkweed flowers.

    Milkweeds

    Subfamily Asclepiadoideae
    Photo of purple prairie clover, closeup of flowerhead

    Purple Prairie Clover

    Dalea purpurea (formerly Petalostemon purpureum)
    Photo of sensitive brier flowers

    Sensitive Briar

    Mimosa quadrivalvis (also Schrankia nuttallii)
    Photo of slender bush clover flowers

    Slender Bush Clover

    Lespedeza virginica
    spotted knapweed

    Spotted Knapweed

    Centaurea stoebe
    invasive icon

    Invasive

    Photo of tick trefoil plant with flowers

    Tick Trefoils (Sticktights; Beggar's Lice)

    Desmodium spp. (17 species in Missouri)