Fall Phlox (Phlox paniculata L.)

Polemoniaceae (Phlox Family)

Synonym(s): Fall Phlox, Perennial Phlox

Base Flower Color: Pink
Reproductive Phenology: Jul, Aug, Sept, Oct
Notes: This native plant has been used to create many hybridized versions in many colors.

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Pink Thoroughwort (Fleischmannia incarnata (Walter) King & H. Rob.)

Asteraceae/Compositae (Aster/Composit Family)

Synonym(s): Pink Thoroughwort

Base Flower Color: White, Pink, Purple
Reproductive Phenology: Aug, Sept, Oct
Notes: This plant is indeed most closely related to ageratums such as Blue Mist Flower (Conoclinium coelestinum).

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Pringles Aster (Symphyotrichum pilosum (A. Gray) G. L. Nesom var. pringlei)

Synonym(s): Aster de Pringle, Pringle’s Aster, Monte Cassino

Base Flower Color: White, Pink, Yellow
Reproductive Phenology: Aug, Sept, Oct

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Horseweed (Conyza canadensis (L.) Cronquist var. canadensis)

Asteraceae/Compositae (Aster/Composit Family)

Synonym(s): Horseweed, Canadian Horseweed, Bitterweed, Hogweed, Squaw Weed, Colt’s Tail

Base Flower Color: White
Reproductive Phenology: Jul, Aug, Sept, Oct
Notes: The leaves have a sharp flavor and an aromatic taste similar to tarragon.

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Prairie Tea (Croton monanthogynus Michx.)

Euphorbiaceae (Spurge Family)

Synonym(s): Prairie Tea, One-seed Croton, Doveweed, Dove Weed, Prairie Goatweed

Base Flower Color: White, Yellow
Reproductive Phenology: Jun, Jul, Aug, Sept, Oct

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Partridge Pea (Chamaecrista fasciculata (Michx.)Greene var. fasciculata)

Fabaceae (Pea Family)

Synonym(s): Partridge Pea, Sleeping Plant, Sensitive Plant

Base Flower Color: Yellow
Reproductive Phenology: Apr, May, Jun

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Similar Species: Sensitive Partridge Pea (Chamaecrista nictitans (L.) Moench ssp. nictitans)

Common Evening Primrose (Oenothera biennis L.)

Onagraceae (Evening Primrose Family)

Synonym(s): Common Evening-primrose, King’s Cure-all

Base Flower Color: Yellow
Reproductive Phenology: Jun, Jul, Aug, Sept, Oct
Notes: The flowers of this night-flowering biennial open in the evening and close by noon.

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Canada Goldenrod (Solidago canadensis L. var. canadensis)

Asteraceae/Compositae (Aster/Composit Family)

Synonym(s): Canada Goldenrod, Canadian Goldenrod, Tall Goldenrod, Giant Goldenrod

Base Flower Color: Yellow
Reproductive Phenology: Aug, Sept, Oct
Notes: Although it and other Goldenrods are commonly blamed for hay fever, this discomfort is usually caused by pollen from Ragweed (Ambrosia spp.) that blooms at the same time.

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White Snakeroot (Ageratina altissima (L.) King & H. Rob. var. altissima)

Asteraceae/Compositae (Aster/Composit Family)

Base Flower Color: White
Reproductive Phenology: Jul, Aug, Sept, Oct
Notes: Native Americans reportedly used a decoction of the roots as a remedy for snakebite, hence the common name. Settlers who drank milk from cows that fed on this plant often developed the disease called milk sickness.

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