Vinca (pervinca, old Latin name of periwinkle, used by Pliny). Apocynaceae. Erect or procumbent or trailing herbs or subshrubs, some used for bloom in the flower-garden, others for decorative foliage in the greenhouse and in window-boxes and others for permanent ground-cover out-of-doors. | Vinca (pervinca, old Latin name of periwinkle, used by Pliny). Apocynaceae. Erect or procumbent or trailing herbs or subshrubs, some used for bloom in the flower-garden, others for decorative foliage in the greenhouse and in window-boxes and others for permanent ground-cover out-of-doors. |