Black cosmos
Cosmos atrosanguineus is a herbaceous perennial plant growing to 40 to 60 cm tall, with a fleshy tuberous root. The leaves are 7 to 15 cm long, pinnate, with leaflets 2 to 5 cm long. The flowers are produced in a capitulum 3 to 4.5 cm diameter, dark red to maroon-dark brown, with a ring of six to ten (usually eight) broad ray florets and a center of disc florets;