Catharanthus roseus
Catharanthus roseus

Periwinkle- Catharanthus roseus

Earlier it was called Vinca rosea. It is native plant of Madagascar but, also grown in other parts of the world as ornamental plant and for medicinal purposes. It is used in Indian and Chinese medicine system for curing diabetes, malaria etc. The cancer drug vinblastine is extracted from this plant.

Red Amaranth – Amaranthus cruentus

It is native plant of Central and South America.
The plant is grown as ornamentals and as staple food because seeds, flowers and leaves of the plant are edible. It is also consumed as green vegetables in Asian countries. It is similar to the beet in terms of the nutrients as it is rich in carotene, protein, Vitamin C etc. The plant is also used to extract red dyes.