Flowers: summer

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

Blue Phlox (Wild Sweet William)

Phlox divaricata

Photo of Chinese yam showing leaves and bulbils

Chinese Yam

Dioscorea oppositifolia (sometimes called D. batatas)

Invasive

Photo of closed gentian flowers

Closed Gentian (Bottle Gentian)

Gentiana andrewsii

Photo of common milkweed flower cluster

Common Milkweed

Asclepias syriaca

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

Grasses

All true grasses (species in the grass family).

Photo of Indian hemp plant

Indian Hemp (Dogbane)

Apocynum cannabinum

Poisonous

Photo of lance-leaved loosestrife plant with flowers

Lance-Leaved Loosestrife

Lysimachia lanceolata

Photo of whorled milkweed flowers.

Milkweeds

Subfamily Asclepiadoideae

Photo of Ohio horsemint inflorescence

Ohio Horsemint

Blephilia ciliata

Edible

Photo of purple loosestrife flowering stalks showing purple flowers

Purple Loosestrife

Lythrum salicaria

Invasive

Photo of sand vine, leaves with flower cluster.

Sand Vine (Climbing Milkweed)

Cynanchum laeve

Photo of slender mountain mint flowers

Slender Mountain Mint

Pycnanthemum tenuifolium

Edible

Photo of soapwort plants and flowers

Soapwort (Bouncing Bet)

Saponaria officinalis

Poisonous

Photo of many blooming ashy sunflower plants, showing gray-green leaves.

Sunflowers

Helianthus spp.

Photo of swamp milkweed, three plants with flower clusters.

Swamp Milkweed

Asclepias incarnata

Photo of white snakeroot leaves and flowers

White Snakeroot

Ageratina altissima (formerly Eupatorium rugosum)

Poisonous

Photo of wholeleaf rosinweed flowerhead

Wholeleaf Rosinweed

Silphium integrifolium

Photo of wild petunia flowers

Wild Petunia (Smooth Ruellia)

Ruellia strepens

Photo of winged loosestrife plants and flowers

Winged Loosestrife

Lythrum alatum