Acanthocalycium rhodotrichum

{{Short description|Species of cactus}}

{{Speciesbox

| image =Echinopsis rhodotricha K. Schumann in habitat.JPG

| image_caption =

|status = LC

|status_system = IUCN3.1

|status_ref ={{cite journal | title=The IUCN Red List of Threatened Species | journal=IUCN Red List of Threatened Species | date=2010-09-20 | url=https://www.iucnredlist.org/species/152091/121458086 | access-date=2023-09-17 | page=}}

| taxon = Acanthocalycium rhodotrichum

| authority = (K.Schum.) Schlumpb. 2012

| synonyms ={{collapsible list |bullets=on

|Echinocactus forbesii {{small|Lehm. 1843}}

|Echinopsis chacoana {{small|Schütz 1949}}

|Echinopsis chacoana var. spinosior {{small|F.Ritter 1965}}

|Echinopsis forbesii {{small|A.Dietr. 1849}}

|Echinopsis klingleriana {{small|Cárdenas 1965}}

|Echinopsis meyeri {{small|Heese 1907}}

|Echinopsis minuana {{small|Speg. 1905}}

|Echinopsis pentlandii var. forbesii {{small|(A.Dietr.) Rud.Mey. 1897}}

|Echinopsis rhodotricha {{small|K.Schum.}}

|Echinopsis rhodotricha var. argentinensis {{small|Rud.Mey. 1911}}

|Echinopsis rhodotricha var. brevispina {{small|F.Ritter 1979}}

|Echinopsis rhodotricha subsp. chacoana {{small|(Schütz) P.J.Braun & Esteves 1995}}

|Echinopsis rhodotricha var. chacoana {{small|(Schütz) F.Ritter 1979}}

|Echinopsis rhodotricha var. robusta {{small|Rud.Mey. 1914}}

|Echinopsis rhodotricha var. roseiflora {{small|K.Schum. 1903}}

|Echinopsis rhodotricha var. spinosior {{small|(F.Ritter) F.Ritter 1979}}

|Echinopsis robinsoniana {{small|Werderm. in Repert. 1934}}

|Echinopsis spegazzinii {{small|K.Schum. ex Speg. 1905}}

|Echinopsis valida {{small|Monv. 1843}}

|Echinopsis valida var. forbesii {{small|Rud.Mey. 1895}}

|Trichocereus validus {{small|(Monv.) Backeb. 1955}}

}}

}}

Acanthocalycium rhodotrichum is a species of Acanthocalycium found in Argentina, Bolivia, Brazil, Paraguay, and Uruguay.{{cite web | title=Acanthocalycium rhodotrichum (K.Schum.) Schlumpb. - Plants of the World Online | website=Plants of the World Online | url=http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77122506-1 | access-date=2022-11-17}}