Leptostachya

{{Short description|Genus of flowering plants}}

{{Speciesbox

|genus = Leptostachya

|parent_authority = Nees (1832), nom. cons.

|species = wallichii

|authority = Nees (1832)

|synonyms = {{collapsible list|bullets=true

|title={{small|Synonymy}}

|Dianthera debilis {{small|C.B.Clarke (1885), nom. illeg.}}

|Dianthera leptostachya {{small|C.B.Clarke (1885)}}

|Dianthera wallichii {{small|(Nees) Vidal (1885)}}

|Ecbolium clarkeanum {{small|Kuntze (1891)}}

|Ecbolium hemsleyanum {{small|Kuntze (1891)}}

|Ecbolium leptostachyum {{small|(C.B.Clarke) Kuntze (1891)}}

|Hallieracantha laxa {{small|(Lindau) Stapf (1907)}}

|Justicia muticitheca {{small|J.B.Imlay (1939)}}

|Justicia neodebilis {{small|Bennet (1983), nom. superfl.}}

|Leptostachya anguina {{small|(Benoist) Bremek. (1961)}}

|Leptostachya debilis {{small|Hosseus (1907), nom. superfl.}}

|Justicia wallichii {{small|(Nees) T.Anderson (1867)}}

|Odontonemella leptostachya {{small|(C.B.Clarke) Lindau (1895)}}

|Ophiorrhiziphyllon laxum {{small|Lindau(1897)}}

|Ptyssiglottis anguina {{small|Benoist (1936)}}

|Ptyssiglottis debilis {{small|S.Moore (1922), nom. superfl.}}

|Ptyssiglottis laxa {{small|(Lindau) Benoist (1935)}}

|Ptyssiglottis leptostachya {{small|(C.B.Clarke) S.Moore (1922)}}

|Ptyssiglottis tonkinensis {{small|Benoist (1936), nom. illeg.}}

|Ptyssiglottis tonkinensis {{small|S.Moore (1922)}}

|Ruellia leptostachya {{small|Wall. (1830), not validly publ.}}

}}

|synonyms_ref = [https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:52179-1 Leptostachya wallichii Nees]. Plants of the World Online. Retrieved 5 February 2024.

}}

Leptostachya wallichii is a species of flowering plant in the family Acanthaceae. It is a perennial native to tropical Asia, where it ranges from India through Indochina to southeastern China (Guangxi and Guangdong provinces) and Borneo.