Calendula officinalis

Erect to ascending annual or short-lived perennial herbs, to c. 50 cm high; branches glandular-hairy. Leaves narrowly obovate, elliptic, orbicular, oblong or lanceolate, 6–20 cm long, 0.5–5 cm wide, entire or few-toothed, with stalked glandular hairs. Involucral bracts in c. 2 rows, lanceolate, 10–15 mm long. Ray florets c. 20–60, in 1–3 rows, ligules yellow to orange, 8–30 mm long; disc florets commonly yellow or orange but sometimes brown-black or green. Cypselas of 2 or 3 types, commonly the outermost 3-winged with smooth backs, innermost more strongly curved, not or barely winged and with a ridged or tuberculate back, sometimes an outermost row of beaked, strongly incurved cypselas with spines on the back is also present. Flowers most of the year.