''Andrographis'' is a genus of flowering plants in the family Acanthaceae. They may be generally known as the false waterwillows,''Andrographis''.
Integrated Taxonomic Information System. and several are called ''periyanagai''.Boopathi, C. A. (2000)
''Andrographis'' spp.: A source of bitter compounds for medicinal use.
''Anc Sci Life'' 19(3-4) 164-8. The species are native to the Indian subcontinent (including Myanmar, Sri Lanka and the West Himalaya region).Niranjan, A., et al. (2010)
Biological activities of kalmegh (''Andrographis paniculata'' Nees) and its active principles - A review.
''Indian J Nat Prod Resour'' 1(2) 125-35. Many are endemic to India.Gnanasekaran, G. and G. V. S. Murthy. (2012)
Lectotypifications in ''Andrographis'' (Acanthaceae).
''Rheedia'' 22(2) 77-79. They may be herbs or

shrub A shrub (often also called a bush) is a small-to-medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees ...

s. They are introduced and/or cultivated in Southeast Asia and some areas around the Caribbean. Some species are used medicinally. The best known is ''

Andrographis paniculata ''Andrographis paniculata'', commonly known as creat or green chiretta, is an annual herbaceous plant in the family Acanthaceae, native to India and Sri Lanka. It is widely cultivated in Southern and Southeastern Asia, where it has been believ ...

'', which is valued in Ayurveda, Unani, and Siddha medicine. It is used to treat a very long list of illnesses and conditions. '' A. alata'' and '' A. lineata'' are used in human and veterinary medicine. Food use has also been recorded. It is currently (as of April 2021) accepted that there are 26 species in the genus. These are: *''

Andrographis affinis ''Andrographis'' is a genus of flowering plants in the family Acanthaceae. They may be generally known as the false waterwillows,

'' *'' Andrographis alata'' *'' Andrographis atropurpurea'' *''

Andrographis beddomei ''Andrographis'' is a genus of flowering plants in the family Acanthaceae. They may be generally known as the false waterwillows,

'' *'' Andrographis chendurunii'' *''

Andrographis echioides ''Andrographis'' is a genus of flowering plants in the family Acanthaceae. They may be generally known as the false waterwillows,

'' *'' Andrographis elongata'' *'' Andrographis explicata'' *''

Andrographis glandulosa ''Andrographis'' is a genus of flowering plants in the family Acanthaceae. They may be generally known as the false waterwillows,

'' *''

Andrographis gracilis ''Andrographis'' is a genus of flowering plants in the family Acanthaceae. They may be generally known as the false waterwillows,

'' *''

Andrographis lawsonii ''Andrographis'' is a genus of flowering plants in the family Acanthaceae. They may be generally known as the false waterwillows,

'' *'' Andrographis lineata'' *''

Andrographis lobelioides ''Andrographis'' is a genus of flowering plants in the family Acanthaceae. They may be generally known as the false waterwillows,

'' *''

Andrographis longipedunculata ''Andrographis'' is a genus of flowering plants in the family Acanthaceae. They may be generally known as the false waterwillows,

'' *''

Andrographis macrobotrys ''Andrographis'' is a genus of flowering plants in the family Acanthaceae. They may be generally known as the false waterwillows,

'' *''

Andrographis megamalayana ''Andrographis'' is a genus of flowering plants in the family Acanthaceae. They may be generally known as the false waterwillows,

'' *''

Andrographis neesiana ''Andrographis'' is a genus of flowering plants in the family Acanthaceae. They may be generally known as the false waterwillows,

'' *''

'' - Indian subcontinent (native), SE Asia (cultivated) *''

Andrographis producta ''Andrographis'' is a genus of flowering plants in the family Acanthaceae. They may be generally known as the false waterwillows,

'' *''

Andrographis rothii ''Andrographis'' is a genus of flowering plants in the family Acanthaceae. They may be generally known as the false waterwillows,

'' *'' Andrographis rotundifolia'' *'' Andrographis serpyllifolia'' *'' Andrographis stellulata'' *'' Andrographis stenophylla'' *'' Andrographis subspathulata'' *'' Andrographis viscosula''

References

{{Taxonbar, from=Q15733525 Acanthaceae Acanthaceae genera