Conyza bonariensis (L.) Cronquist.

Common Name : Asthmaweed
Family : Asteraceae

HABIT

ERECT PERENNIAL, 20-75 CM TALL.

STEMS

ERECT WITH STIFF HAIRS, BRANCHING AT THE BASE, DECREASING UPWARDS.

LEAVES

NARROW, LANCEOLATE, GREY TO GREEN COLOR, 2-6 CM LONG, COARSELY TOOTHED AND COVERED WITH FINE HAIRS; UPPER LEAVES ARE SMALLER AND LINEAR.

FLOWERS

INFLORESCENCE MUCH BRANCHED; CAPITULUM IS GREATER THAN 2 MM IN DIAMETER.

FRUITS

CYPSELA LINEAR SHAPED, 1.5 MM LONG, STRAW COLORED, COVERED IN HAIRS WITH 16-20, NOTICEABLY LONGER, AT THE TOP THAT ARE WHITE OR PINK.