Calendula officinalis L.
Family: Asteraceae
[Calendula officinalis var. prolifera ]
Calendula officinalis image
Leaf blades 3-12(-18+) cm × 10-30(-60+) mm. Peduncles 5-8(-12+) cm. Phyllaries 12-40+, (8-)10-12+ mm. Ray florets 30-50(-100+); corolla laminae 12-20+ mm. Disc florets (30-)60-150+; corollas (4-)5-6+ mm. Cypselae 9-15(-25+) mm. 2n = 14, 32. Flowering year-round. Disturbed places; 0-500 m; introduced; Calif., Conn., Maine, Mass., Mich., N.H., Ohio, Pa.; Eurasia; Africa; Atlantic Islands. Cultivars of Calendula officinalis are widely used horticulturally, medicinally, and as pot herbs.