Any of several vines with colourful fruit.
The genus Celastrus (family Celastraceae) includes American bittersweet, or staff vine ( C. scandens ), and Oriental bittersweet ( C. orbiculatus ), woody vines grown as ornamentals. Oriental bittersweet is a more vigorous climber than the American species. Both types climb by twining around supports. Another bittersweet, Solanum dulcamara , belongs to the nightshade family .