False Flowering Spurge (Euphorbia pubentissima Michx.)

Euphorbiaceae (Spurge Family) Base Flower Color: WhiteReproductive Phenology: Apr, May, Jun, Jul, Aug, Sept For more information about this plant, Click Here. Similar Species: Flowering Spurge (Euphorbia corollata)

Prairie Broomweed (Amphiachyris dracunculoides (DC.) Nutt.)

Asteraceae/Compositae (Aster/Composit Family) Synonym(s): Prairie Broomweed, Broomweed Base Flower Color: YellowReproductive Phenology: Jul, Aug, Sept, Oct, Nov For more information about this plant, Click Here.

Devil’s Beggartick (Bidens frondosa L.)

Asteraceae (Aster Family) Synonym(s): Devil’s Beggartick, Spanish Needles Base Flower Color: Yellow, OrangeReproductive Phenology: Jun, Jul, Aug, Sept, Oct For more information about this plant, Click Here.

Annual Ragweed (Ambrosia artemisiifolia L.)

Asteraceae/Compositae (Aster/Composit Family) Synonym(s): Annual Ragweed, Short Ragweed Base Flower Color: Yellow, GreenReproductive Phenology: Jul, Aug, Sept, OctBloom Notes: This plant, not Goldenrod, is a cause of hay fever, recognized by all who suffer the discomfiting allergy. For more information about this plant, Click Here. Similar Species: Great Ragweed, Giant Ragweed (Ambrosia trifida L.)

Smooth Rosonweed (Silphium asteriscus var. latifolium (A. Gray) J.A. Clevinger)

Asteraceae/Compositae (Aster/Composit Family) Scientific Name Synonym(s): Silphium confertifolium Small, Silphium glabrum Eggert ex Small, Silphium trifoliatum var. latifolium A. Gray, Silphium asteriscus ssp. latifolium Weber & T.R. Fisher. Common Name Synonym(s): Starry Rosinweed Base Flower Color: YellowReproductive Phenology: Jun, Jul, AugNotes: Notice the smooth stem and leaves lacking hairs (Glabrous). For more information about thisContinue reading “Smooth Rosonweed (Silphium asteriscus var. latifolium (A. Gray) J.A. Clevinger)”

Bastard Toadflax (Comandra umbellata (L.) Nutt. var. umbellata)

Santalaceae (Sandalwood Family) Base Flower Color: WhiteReproductive Phenology: May, Jun, Jul For more information about this plant, Click Here.

Showy Goldenrod (Solidago speciosa Nutt.)

Asteraceae/Compositae (Aster/Composit Family) Synonym(s): Showy Goldenrod, Noble Goldenrod Base Flower Color: YellowReproductive Phenology: Aug, Sept, Oct For more information about this plant, Click Here.

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 For more information about this plant, Click Here.

Giant Ironweed (Vernonia gigantea Trel. ex Branner & Coville)

Asteraceae/Compositae (Aster/Composit Family) Synonym(s):  Tall Ironweed Base Flower Color: Purple, PinkReproductive Phenology: Jun, Jul, Aug, SeptNotes: The common name refers to the toughness of the stem. For more information about this plant, Click Here.

Limestone Prairie Fleabane (Erigeron strigosus Muhl. ex Willd. var. calcicola J. Allison)

Asteraceae/Compositae (Aster/Composit Family) Synonym(s): Prairie Fleabane, Daisy Fleabane, Limestone Fleabane Base Flower Color: White, Pink, Yellow, BlueReproductive Phenology: Apr, May, Jun, Jul, Aug, Sep, OctBloom Notes: Capitula radiate. Ray florets are white or occasionally tinged pink or blue. Disc florets greenish-yellow. For more information about this plant, Click Here.