Calendula rhymes with:
angela, ahola, angela, aquila, curricula, diverticula, fibula, formula, gisela, gondola, hatala, hautala, hietala, hyperbola, ketola, mahala, mahalah, mandala, mengele, methuselah, nebula, pamela, parabola, peninsula, pergola, romola, scapula, seemala, temecula, theola, ursula