HABIT	AN ERECT ANNUAL HERB.
STEMS	GROOVED, SUB-UMBELLATELY BRANCHED, GLABROUS.
LEAVES	THIN, SESSILE, OBOVATE-LANCEOLATE, BASE HALF AMPLEXICAUL, DENTATE
FLOWERS	HEADS YELLOW, IN IRREGULAR UMBELLATE CYMES.
FRUITS	ACHENE COMPRESSED, NARROWLY OBOVOID, RIBBED, DISTINCTLY MURICULATE, LIGHT BROWN. PAPPUS COPIUS, WHITE, LONGER THAN THE ACHENE.