Erect, tap-rooted plant 1-4 ft tall. Annual, biennial or short-lived perennial. Plant grows as a rosette until sending up flowering stalk. Small, white flowers in flat-topped, compound umbels with a pink or purple flower in the middle. Stems bristly, hollow and ridged.
|Habitat Notes||commercial ag lands, livestock feeding areas, rights-of-way, meadows|
|Mature Height||1-4 ft|