United States, Texas, Uvalde, Hwy 55, 1.6 km N of RR 334.
29.45 -100.01667
With Aloysia, Acacia, and Wedelia. Growing on roadside. Perennial upright from rhizome. Stems rubbery, red when bruised. Flowers white. Rhizome used as toothbrush. Fruit comestible.