Scientific name: Tagetes erecta Linn
A rather coarse, erect, glabrous branched, rank-smelling annual herb, 0.4 to 1 m high. Leaves: 4 to 11 cm long, very deeply pinnatifid, the lobe lanceolate, coarsely and sharply toothed, 1 to 2.5 cm long. Flowers: heads solitary, long-peduncled, the peduncle thickened upward, 2.5 to 3.5 cm long, 2 to 4 cm in diameter, the involucre green. Ray flowers 1-seriate, female, the ligule entire or 2-toothed, short or long; disk flowers, perfect, regular, tubular limb usually somewhat enlarged, 5-fid, flowers pale to deep yellow. Fruits: achenes, linear, narrowed below, compressed or angled, 6 to 7 mm long.