Morsacanthus

{{Short description|Species of flowering plant}}

{{Speciesbox

| image =

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| genus = Morsacanthus

| parent_authority = Rizzini

| species = nemoralis

| authority = Rizzini

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Morsacanthus is a monotypic genus of flowering plants belonging to the family Acanthaceae.{{cite web |title=Morsacanthus Rizzini {{!}} Plants of the World Online {{!}} Kew Science |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:295060-2 |website=Plants of the World Online |access-date=27 May 2021 |language=en}} The only species is Morsacanthus nemoralis {{small|Rizzini}}.{{cite web |title=Morsacanthus nemoralis Rizzini {{!}} Plants of the World Online {{!}} Kew Science |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:164453-2 |website=Plants of the World Online |access-date=28 October 2021 |language=en}}

It is native to southern Brazil.

The genus name of Morsacanthus is in honour of Walter Baptist Mors (1920–2008), a Brazilian chemist who researched useful plants.{{cite book | last=Burkhardt | first=Lotte | title=Verzeichnis eponymischer Pflanzennamen – Erweiterte Edition |trans-title=Index of Eponymic Plant Names – Extended Edition | publisher=Botanic Garden and Botanical Museum, Freie Universität Berlin | year=2018 | isbn=978-3-946292-26-5 | url=https://doi.org/10.3372/epolist2018 |format=pdf |language=German |location=Berlin | doi=10.3372/epolist2018 |access-date=1 January 2021}} The Latin specific epithet of nemoralis means coming from the forest.{{cite book | last=Lewis | first=Charlton | title=An Elementary Latin Dictionary | publisher=Oxford University Press | location=Oxford | year=1891 | isbn=9780199102051}}

Both genus and species were first described and published in Revista Brasil. Biol. Vol.12 on page 261 in 1952.