''Adrorhizon purpurascens'' is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

of orchid (family

Orchidaceae Orchids are plants that belong to the family (biology), family Orchidaceae (), a diverse and widespread group of flowering plants with blooms that are often colourful and fragrant. Orchids are cosmopolitan distribution, cosmopolitan plants that ...

). It is the only species in the genus ''Adrorhizon'' and one of three genera in the subtribe

Adrorhizinae Adrorhizinae is an orchid subtribe in the tribe Vandeae.Pridgeon, A.M., Cribb, P.J., Chase, M.A. & Rasmussen, F. eds. (2014). ''Genera Orchidacearum'', Volume 6. Oxford Univ. Press. Ecology Pollination Pollination by ants, flies, and carpenter ...

.Pridgeon, A.M., Cribb, P.J., Chase, M.A. & Rasmussen, F. eds. (2014). ''Genera Orchidacearum'', Volume 6. Oxford Univ. Press. The genus is native to southern

India India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...

and

Sri Lanka Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka, also known historically as Ceylon, is an island country in South Asia. It lies in the Indian Ocean, southwest of the Bay of Bengal, separated from the Indian subcontinent, ...

.Kew World Checklist of Selected Plant Families ''Adrorhizon''
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References

Adrorhizinae Orchids of India Orchids of Sri Lanka Vandeae genera Monotypic Epidendroideae genera Taxa named by Joseph Dalton Hooker {{Vandeae-stub