Explanation:

Botanists have discovered a new species of wild sun rose from the Eastern Ghats in India.

• The new species, named Portulaca laljii, discovered from Prakasam district of Andhra Pradesh has unique features such as a tuberous root, no hair in its leaf axils, a reddish pink flower, prolate-shaped fruits, and copper brown seeds without lustre.
• The flowers are very attractive and bloom for months from June to February.
• The plant bears beautiful, tiny pink flowers for eight months. It is because of the succulent nature of tuberous roots that the plant can survive on rocky crevices.
• Portulaca laljii has been named to honour the contribution of Lal Ji Singh, an eminent botanist of the Botanical Survey of India associated with its Andaman and Nicobar Centre.

Hence option 4th is correct.