Gunaratna, T.A.N.R.; Samarathunga, D.K.; Liyanage, J.A.
(Culture, Globalization and the Developing World, 2nd ICSS, 2013)
Herbs cover the complete range of growth habits and sizes of plants, and they can be annuals, biennials, perennials, trees, shrubs, climbers, creeping vines and grasses. Sri Lanka has a rich ecosystem diversity because of ...