{ { Speciesbox
| image =Lobivia muhriae OF 86-80.jpg
| image_caption =
| status = LC
| status_system = IUCN3.1
| status_ref =
| taxon = Echinopsis marsoneri
| authority = Werderm. | synonyms ={ { collapsible list| Lobivia chrysantha subsp. marsoneri Lobivia chrysantha var. marsoneri Lobivia marsoneri Andenea gregeri Lobivia buiningiana Lobivia chrysantha var. glauca Lobivia chrysantha var. muhriae Lobivia chrysantha subvar. rubescens Lobivia chrysantha var. rubescens Lobivia chrysantha subvar. vatteri Lobivia chrysantha var. vatteri Lobivia glauca Lobivia haageana Lobivia haageana f. albihepatica Lobivia haageana var. albihepatica Lobivia haageana var. bicolor Lobivia haageana f. bicolor Lobivia haageana f. chrysantha Lobivia haageana var. chrysantha Lobivia haageana var. cinnabarina Lobivia haageana f. cinnabarina Lobivia haageana f. croceantha Lobivia haageana var. croceantha Lobivia haageana var. durispina Lobivia haageana f. durispina Lobivia haageana f. grandiflora-stellata Lobivia haageana var. grandiflora-stellata Lobivia haageana f. leucoerythrantha Lobivia haageana var. leucoerythrantha Lobivia iridescens Lobivia jajoana f. buiningiana Lobivia jajoana var. glauca Lobivia jajoana var. nigrostoma Lobivia jajoana var. vatteri Lobivia marsoneri var. haageana Lobivia marsoneri var. iridescens Lobivia marsoneri var. muhriae Lobivia marsoneri var. rubescens Lobivia marsoneri var. uitewaaleana Lobivia muhriae Lobivia muhriae var. flaviflora Lobivia nigrostoma Lobivia rubescens Lobivia tuberculosa Lobivia uitewaaleana Lobivia vatteri Lobivia vatteri var. robusta Backeb. 1956 publ. 1957}} }}Echinopsis marsoneri is a species of cactus from Argentina and Bolivia. DescriptionEchinopsis marsoneri usually grows singly and has a short beet root. The spherical, light gray-green shoots reach a diameter of 8 centimeters and grow to the same height. There are about 20 compressed ribs arranged in a spiral pattern. The whitish gray to yellowish thorns arising from the areoles are darker at their base. The two to five protruding, often hooked central spines are thickened at their base and up to 7 centimeters long. The eight to twelve marginal spines are up to 3 centimeters long.
The short, funnel-shaped to bell-shaped, yellow, orange or red flowers have a darker throat. They are 5 to 6 centimeters long and have the same diameter. The egg-shaped fruits are semi-dry to sticky.
DistributionEchinopsis marsoneri is widespread in the Bolivian department of Chuquisaca and the Argentine provinces of Jujuy and Salta at altitudes of 2500 to 4500 meters.
Taxonomy
The first description by Erich Werdermann was published in 1932. The specific epithet marsoneri honors the Argentine cactus collector Oreste Marsoner. Nomenclature synonyms are Lobivia chrysantha subsp. marsoneri (Werderm.) Rausch (1975), Lobivia chrysantha var. marsoneri (Werderm.) Rausch (1975) and Lobivia chrysantha subsp. marsoneri'' (Werderm.) Rausch ex G.D. Rowley (1982).