''Clarkella'' is a monotypic genus of flowering plants in the family Rubiaceae.Hooker, Joseph Dalton. 1880. Flora of British India 3(7): 46.
/ref> The genus contains only one species, viz. ''Clarkella nana'', which is native to India,

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

, Uttarakhand, the Western Himalayas, Burma and Thailand.Kew World Checklist of Selected Plant Families, ''Clarkella''
/ref>Craib, William Grant. 1931. Bulletin of Miscellaneous Information Kew 1931: 216, ''Clarkella siamensis'' from Thailand

References

Rubioideae Flora of West Himalaya Flora of Myanmar Flora of Thailand Flora of China Environment of Uttarakhand Monotypic Rubiaceae genera {{Rubioideae-stub