Photo of Johnson grass flower clusters

    Johnson Grass

    Sorghum halepense
    invasive icon

    Invasive

    Photo of whorled milkweed flowers.

    Milkweeds

    Subfamily Asclepiadoideae
    Photo of tick trefoil plant with flowers

    Tick Trefoils (Sticktights; Beggar's Lice)

    Desmodium spp. (17 species in Missouri)