United States, Texas, Cameron, 8 miles north of Brownsville, on Peredes road.
Habit erect weed, branched above; habitat open ground, roadsides; annual; soil clay; flowers terminal or axillary; color pale yellow; odor faint; open during day; month November; leaves are pinnatifid, coarse; fruit is a small capsule; bark green or red; roots fibrous. A late Fall weed, but not abundant in this region.