The Bud Of Pot Marigold With A Raindrop. - Calendula Officinalis (pot Marigold) Is A Plant In The Genus Calendula In The Family Asteraceae. It Is Probably Native To Southern Europe Though Its Long History Of Cultivation Makes Its Precise Origin Unknown, And May Possibly Be Of Garden Origin. It Is Also Widely Naturalised Further North In Europe (north To Southern England) And Elsewhere In Warm Temperate Regions Of The World. Photo