Scentless Chamomile, Tripleurospermum indorum
Family: Asteraceae; Sunflower Family
Vegetative Characteristics:
Seedling: cotyledons broadly oblong to ovate, glabrous
Stems: erect, 15.0-70.0 cm tall, branching, glabrous, round
Leaves: alternate, 2.0-8.0 cm long, bipinnatifid, segments mostly elongate, linear, or linear-filiform, glabrous
Reproductive Characteristics:
Inflorescences: solitary heads terminating from branches; ray florets 12-25, 0.6-1.3 cm long, corolla white, 5-toothed; disk florets 0.8-1.5 cm wide, corolla 5-toothed, yellow
Fruits: achene, 3-angled, 1.2-1.5 mm long, grooved winglike ribs, thickened, 2 marginal, 1 ventral, gray to black or dark brown; pappus low crown
Special Identifying Characteristics:
⇒ erect, odorless annual or sometimes perennial herb; leaves bipinnatifid, segments linear, glabrous; heads solitary at ends of branches; ray florets white, disk florets yellowish
