Waste areas, railroads, roadsides

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Photo of American water willow closeup on flowers

American Water Willow

Justicia americana

Photo of blue cardinal flower flowering stalk

Blue Cardinal Flower (Great Blue Lobelia)

Lobelia siphilitica

Photo of blue phlox (wild sweet William) plant with flowers

Blue Phlox (Wild Sweet William)

Phlox divaricata

Photo of blue vervain flower clusters in a prairie

Blue Vervain

Verbena hastata

Photo of blue-eyed Mary flowers

Blue-Eyed Mary

Collinsia verna

Photo of cardinal flower plants in flower

Cardinal Flower

Lobelia cardinalis

Photo of Chinese yam showing leaves and bulbils

Chinese Yam

Dioscorea oppositifolia (sometimes called D. batatas)

Invasive

Photo of clasping Venus' looking glass, a blue wildflower

Clasping Venus’ Looking Glass

Triodanis perfoliata (formerly Specularia perfoliata)

Photo of cleavers flower cluster with developing fruits

Cleavers (Bedstraw; Goose Grass)

Galium aparine

Photo of climbing false buckwheat vines, leaves, and flowers.

Climbing False Buckwheat (Crested Buckwheat)

Fallopia scandens (formerly Polygonum scandens)

Photo of tall thoroughwort plant with flowers

Common Boneset (Thoroughwort)

Eupatorium perfoliatum

Photo of common water hemlock or spotted cowbane flowers

Common Water Hemlock

Cicuta maculata

Poisonous

Rope dodder stems

Dodders

Cuscuta spp.

Photo of false dragonhead plant with flowers

False Dragonhead (Obedient Plant)

Physostegia virginiana

Photo of Florida lettuce flower closeup with syrphid fly

Florida Lettuce (Woodland Lettuce)

Lactuca floridana

Edible

Photo of tall goldenrod plant with flowers

Goldenrods

Solidago spp. (23 species in Missouri)

Photo of several big bluestem seed heads against a blue sky.

Grasses

All true grasses (species in the grass family).

Photo of hairy rose mallow flower

Hairy Rose Mallow

Hibiscus lasiocarpos

Photo of hedge bindweed flowers

Hedge Bindweed

Calystegia sepium (also Convolvulus sepium)

Photo of horseweed flowers

Horseweed (Canada Fleabane, Hog Weed)

Conyza canadensis (formerly Erigeron canadensis)

Photo of Indian hemp plant

Indian Hemp (Dogbane)

Apocynum cannabinum

Poisonous

Photo of Japanese knotweed

Japanese Knotweed

Fallopia japonica

Invasive

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 mist flower or wild ageratum plants with flowers

Mist Flower (Wild Ageratum; Blue Boneset)

Conoclinium coelestinum (formerly Eupatorium coelestinum)

Photo of New England aster plants with flowers

New England Aster

Symphyotrichum novae-angliae (formerly Aster novae-angliae)

Closeup of single flowerhead of a New World aster with yellow disk florets and lavender ray florets

New World Asters (American Asters)

Symphyotrichum spp. (formerly Aster spp.)

Photo of northern fog fruit flowering head

Northern Fog Fruit

Lippia lanceolata (formerly Phyla lanceolata)

Photo of pale Indian plantain flower clusters.

Pale Indian Plantain

Arnoglossum atriplicifolium (also Cacalia atriplicifolia)

No photo available

Philadelphia Fleabane

Erigeron philadelphicus

Photo of pokeweed plant with dangling stalks of ripe and unripe berries.

Pokeweed

Phytolacca americana

Poisonous

Photo of purple loosestrife flowering stalks showing purple flowers

Purple Loosestrife

Lythrum salicaria

Invasive

Photo of path rush, closeup showing drying fruits.

Rushes

Juncus spp. and Luzula spp.

Photo of eastern woodland sedge plant growing among leaf litter.

Sedges

Carex, Schoenoplectus, Scirpus, and other genera

Photo of large group of sericea lespedeza plants

Sericea Lespedeza

Lespedeza cuneata

Invasive

Photo of common gerardia plant with flowers

Slender False Foxglove

Agalinis tenuifolia (formerly Gerardia tenuifolia)

Photo of slender mountain mint flowers

Slender Mountain Mint

Pycnanthemum tenuifolium

Edible

Photo of spotted touch-me-not or jewelweed flower.

Spotted Touch-Me-Not (Jewelweed)

Impatiens capensis

Star of Bethlehem cluster of plants with flowers

Star of Bethlehem

Ornithogalum umbellatum

Poisonous

Photo of a starry campion flower

Starry Campion (Catchfly)

Silene stellata

Photo of swamp milkweed, three plants with flower clusters.

Swamp Milkweed

Asclepias incarnata

Photo of a tall thoroughwort plant in bloom.

Tall Thoroughwort (Tall Boneset)

Eupatorium altissimum

Photo of tick trefoil plant with flowers

Tick Trefoils (Sticktights; Beggar's Lice)

Desmodium spp. (17 species in Missouri)

Photo of water smartweed plant and flower cluster

Water Smartweed

Persicaria amphibia (formerly Polygonum amphibium)

Photo of white sweet clover flower cluster showing stalk and flowers.

White and Yellow Sweet Clovers

Melilotus albus and M. officinale

Invasive

Photo of white anemone

White Anemone (Windflower)

Anemone canadensis

Photo of white avens flower and upper stem leaves.

White Avens (Red Root)

Geum canadense

Photo of white crownbeard plant with flowers

White Crownbeard

Verbesina virginica

Photo of white heath aster flowers

White Heath Aster

Symphyotrichum pilosum (formerly Aster pilosus)

Photo of white snakeroot leaves and flowers

White Snakeroot

Ageratina altissima (formerly Eupatorium rugosum)

Poisonous

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