With which energy the plant manifests its own perfume?

Question

This plant is the only genus in its family, native to Asia, Europe and Western North America, usually 0.25-1 m (1-3 ft) tall but some plants reach 3.5 m (11 ft) tall, with large, often fragrant flowers, purple, pink, red, white or yellow. What is it?

Answer 1

The plants like Corn, Sugar Cane, Palm oil, Jatropha, Soybean, Switchgrass, Rapeseed are cultivated to obtain the fuel. The method ofproducing fuel from plants or other sources will allow us to decrease our dependence on fossil fuels specially Petroleum products.