biome plant

one plant is the periwinkle.The common periwinkle is perennial evergreen herb that spreads with trailing branches. The elliptical leaves are and shiny dark green in colour. The periwinkle bluish-purple flower is very attractive and consists of 5 fused petals. The stems form roots at the nodes as they creep along the ground. this is a pick of a periwinkle. i got this pick and facts form phytochemicals.com.