The plant’s tubular yellow flowers, which are borne on leafy, downward-curving (helicoid) cymes, are 7 to 10 millimeters in length. The filiform style is long-exserted from the flower, and the anthers, inserted in the corolla throat, wither before the corolla is fully developed. Onosmodium virginianum blooms in June and July.

A lot of information on the homeopathic uses of this plant can be found on