Laggera crispata is an erect, much-branched, annual plant growing 40 - 100cm tall[
The plant is harvested from the wild for local use as a medicine.
Tropical Africa; E. Asia - southern China, India, Bhutan, Thailand, Vietnam
A weedy herb, growing on dry hill slopes, old clearings, upland rice fields, and wastelands; at elevations up to 2,000 metres[
A strongly aromatic plant[
The paste of the leaves is employed in the treatment of inflammation and swelling by the inhabitants in northeast region of India and it is also said to have antihelminthic properties. In Chinese traditional system, it is used as a medicine to cure angina, bronchitis, influenza, and malaria. It is also applied externally for treating scabies, burns, snakebites, injuries, fractures, contusions, and strains. Aerial parts of the plant have been used as an antiinflammatory, antibacterial, and antileukaemia[
Because of diverse chemical components and biological activities, recently much attention has been given to the genus Laggera in various countries[
The essential oil contains a wide range of compounds, the most prominent of which are 2,5-dimethoxy-p-cymene (43.2%); 10-epi-gamma-eudesmol (19.7%); Juniper camphor (4.8%); alpha-humulene (3.8%); 7-epi-alpha-eudesmol (3.6%); caryophyllene (3.5%); caryophyllene oxide (2.8%); dihydroagarofuran (2.6%); and alpha-muurolol (1.7%). In trials, the essential oil has shown moderate to good activity against gran-positive bacteria, and has also shown activity to some gram-negative bacteria[