Plants 3-6 dm
tall, may be somewhat soft hairy, ill-scented; leaves finely dissected into
hair-fine sections; heads 2 cm broad, numerous, solitary at the end of the
branches, peduncles short, 3-6 cm long; bracts with greenish midsection but
scarious or hyaling margins; receptacle conical with bracts above the middle;
ray flowers sterile, 6-11 mm long; achenes 1-1.5 mm long, angled, ribs (10) with
small tubercles; common weed, introduced.