Missouri Evening Primrose (Oenothera macrocarpa ssp. macrocarpa)

Onagraceae (Evening Primrose Family) Synonym(s): Bigfruit Evening-primrose, Fluttermill, Missouri Evening Primrose, Glade Lily Base Flower Color: YellowReproductive Phenology: May, Jun, Jul For more information about this plant, Click Here.

Yellow Trillium (Trillium luteum (Muhl.) Harbison)

Trilliaceae (Trillium Family) Synonym(s): Yellow Wakerobin, Yellow Trillium Base Flower Color: YellowReproductive Phenology: Mar, Apr, May, JunBloom Notes: How to tell the difference between this trillium and a yellow Trillium cuneatum. The filaments of the two species are different colors. The filaments of Trillium luteum are greenish white and those of Trillium cuneatum are brownishContinue reading “Yellow Trillium (Trillium luteum (Muhl.) Harbison)”

Amur Honeysuckle (Lonicera maackii (Rupr.) Maxim.)

Caprifoliaceae (Honeysuckle Family) Synonym(s): Bush Honeysuckle Base Flower Color: White, YellowReproductive Phenology: May, Jun For more information about this plant, Click Here and Here.

Yellow Woodland Violet (Viola pubescens Aiton)

Violaceae (Violet Family) Synonym(s): Downy Yellow Violet, Downy Violet, Hairy Yellow Violet, Yellow Violet, Common Yellow Violet Base Flower Color: YellowReproductive Phenology: Mar, Apr, May For more information about this plant, Click Here.

Spiny Sowthistle (Sonchus asper (L.) Hill)

Asteraceae/Compositae (Aster/Composit Family) Synonym(s): Prickly Sowthistle, Spiny-leaved Sow-thistle Base Flower Color: YellowReproductive Phenology: Mar, Apr, May, Jun, Jul, Aug, Sept, Oct, Nov For more information about this plant, Click Here.

Rigid Whitetop Aster (Symphyotrichum retroflexum (Lindl. ex DC.) G. L. Nesom)

Asteraceae/Compositae (Aster/Composit Family) Base Flower Color: Blue, Pink, Purple, YellowReproductive Phenology: Jul, Aug, Sept For more information about this plant, Click Here.

Spreading Yellow False Foxglove (Aureolaria patula)

Scrophulariaceae (Figwort Family) Synonym(s): Spreading Yellow False Foxglove, Spreading Yellow Foxglove Base Flower Color: YellowReproductive Phenology: Apr, May, Jun, Jul For more information about this plant, Click Here.

Purple-Headed Sneezeweed (Helenium Flexuosum Raf.)

Asteraceae/Compositae (Aster/Composit Family) Synonym(s): Purplehead Sneezeweed Base Flower Color: Brown (incl. Maroon), Purple, YellowReproductive Phenology: Apr, May, Jun, Jul, Aug, Sept, OctBloom Notes: The genus is thought to have been named by Linnaeus for Helen of Troy. The legend is that the flowers sprung up from the ground where her tears fell. For more informationContinue reading “Purple-Headed Sneezeweed (Helenium Flexuosum Raf.)”

Southern Prairie Aster (Eurybia hemispherica (Alexander) G.L. Nesom)

Asteraceae/Compositae (Aster/Composit Family) Synonym(s): Single Stemmed Bog Aster; Southern Prairie Aster Base Flower Color: Yellow, Purple, WhiteReproductive Phenology: Jul, Aug, Sept, Oct For more information about this plant, Click Here.

Downy Agrimony (Agrimonia pubescens Wallr.)

Rosaceae (Rose Family) Synonym(s): Downy Agrimony, Soft Agrimony, Hairy Agrimony Base Flower Color: YellowReproductive Phenology: Jul, Aug, Sept, Oct For more information about this plant, Click Here.