Pycnorhachis

{{Short description|Genus of plants}}

{{Speciesbox

| image =

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| genus = Pycnorhachis

| parent_authority = Benth.

| species = maingayi

| authority = Hook.f.

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Pycnorhachis is a monotypic genus of flowering plants belonging to the family Apocynaceae. The only species is Pycnorhachis maingayi.{{cite web |title=Pycnorhachis Benth. {{!}} Plants of the World Online {{!}} Kew Science |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:3639-1 |website=Plants of the World Online |access-date=27 May 2021 |language=en}}

Its native range is Peninsula Malaysia.