Photo of a large-flowered gaura inflorescence

    Large-Flowered Gaura

    Oenothera filiformis (formerly Gaura longiflora, G. biennis)
    Photo of whorled milkweed flowers.

    Milkweeds

    Subfamily Asclepiadoideae
    Photo of northern fog fruit flowering head

    Northern Fog Fruit

    Lippia lanceolata (formerly Phyla lanceolata)
    Photo of perennial or summer phlox flower cluster.

    Perennial Phlox

    Phlox paniculata
    Photo of swamp milkweed, three plants with flower clusters.

    Swamp Milkweed

    Asclepias incarnata
    Photo of tick trefoil plant with flowers

    Tick Trefoils (Sticktights; Beggar's Lice)

    Desmodium spp. (17 species in Missouri)
    Photo of white heath aster flowers

    White Heath Aster

    Symphyotrichum pilosum (formerly Aster pilosus)