Category Archives: Non-Native

Field Madder (Galium sherardia E. H. L.Krause)

Rubiaceae (Madder Family) Synonym(s): Blue Field Madder; Sherardia; Field Madder Base Flower Color: Pink, PurpleReproductive Phenology: Feb, Mar, Apr, May, Jun, Jul, Aug For more information about this plant, Click Here.

Jimsonweed (Datura stramonium L.)

Solanaceae (Potato Family) Synonym(s): Jamestown Weed, Mad Apple, Moonflower, Stinkwort, Thorn Apple Base Flower Color: White, Violet, Dark Violet CenterReproductive Phenology: Jul, Aug, Sept, Oct For more information about this plant, Click Here.

Oriental Lady’s Thumb (Persicaria maculosa S. F. Gray)

Polygonaceae (Buckwheat Family) Synonym(s): Spotted Lady’s-thumb, Redshank Base Flower Color: PinkReproductive Phenology: May, Jun, Jul, Aug, Sept, Oct, Nov, Dec For more information about this plant, Click Here.

Creeping Water Primrose (Ludwigia peploides (Kuntze) P. H. Raven ssp. glabrescens)

Onagraceae (Evening Primrose Family) Synonym(s): Creepingâ Water-primrose, Floating Primrose-willow, Water-primrose Base Flower Color: YellowReproductive Phenology: May, Jun, Jul, Aug, Sept, Oct, Nov For more information about this plant, Click Here.

Peruvian Daisy, Shaggy Gallant Soldiers (Galinsoga quadriradiata Ruiz & Pav.)

Asteraceae/Compositae (Aster/Composit Family) Base Flower Color: Yellow, WhiteReproductive Phenology: Jul, Aug, Sept, Oct For more information about this plant, Click Here.

Field Hawkweed, King Devil (Hieracium caespitosum Dumort.)

Asteraceae/Compositae (Aster/Composit Family) Base Flower Color: YellowReproductive Phenology: JulyBloom Notes: This plant has only been seen in a few counties in east Tennessee. For more information about this plant, Click Here.

Nodding Thistle (Carduus nutans L.)

Asteraceae/Compositae (Aster/Composit Family) Base Flower Color: PurpleReproductive Phenology: May, Jun, Jul, Aug, SeptBloom Notes: Carduus nutans invades a variety of disturbed areas. Pastures are particularly at risk because it is unpalatable to livestock. Once established it can spread rapidly due to high seed production (as much as 120,000 seeds per plant). For more information aboutContinue reading “Nodding Thistle (Carduus nutans L.)”

Yellow Sneezeweed, Bitterweed (Helenium amarum (Raf.) H. Rock var. amarum)

Asteraceae/Compositae (Aster/Composit Family) Synonym(s): Five-leaf Sneezeweed; Sneezeweed; Yellowdicks Base Flower Color: Yellow, Brown (incl. Maroon)Reproductive Phenology: Feb, Mar, Apr, May, Jun, Jul, Aug, Sept, Oct, Nov For more information about this plant, Click Here.

Dame’s Rocket (Hesperis matronalis L.)

Brassicaceae (Mustard Family) Base Flower Color: Purple, Pink, WhiteReproductive Phenology: Apr, May, Jun, Jul, AugEcological Threat: Dame’s rocket displaces native plant species. For more information about this plant, Click Here.