Hispidulous to subglabrous, 1–4 dm, usually branched from the base; rays 1–3; involucel of 2-lobed bractlets; fr-body quadrangular, 6–15 mm, the flat, straight beak 2–7 cm; 2n=16. Native of the Mediterranean region, widely established as a weed in the U.S., n. to N.J. and S.D. May–July.