Botanical name: Nilgirianthus reticulatus
Common name: Hill Conehead
Tamil: Gopuram thangi
Malayalam: Gopuram thangi
Hill Conehead is a perennial shrub, growing to 1-2 ft tall. Many quadrangular branches arise from the base, and spread into a hemispherical shape. Oppositely arranged ovate, acute leaves, 5-8 cm long, are covered with stiff hairs. Bluish-purple flowers occur in spikes, 5-10 cm long, in leaf-axils. Flowers are cone-shaped, 2-3 cm, with 5 petals. Petals are crisp and rounded. Flowers once in 7 years. Flowering: August-October.