Echinopsis mamillosa

Echinopsis mamillosa
Growing at the Charles University Botanical Garden in Prague
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Caryophyllales
Family:	Cactaceae
Subfamily:	Cactoideae
Genus:	Echinopsis
Species:	E. mamillosa
Binomial name
Echinopsis mamillosa Gürke [1]
Synonyms [2]
List Echinopsis herbasiiCárdenas Echinopsis kermesina(Krainz) Krainz Echinopsis mamillosa subsp. silvatica(F.Ritter) P.J.Braun & Esteves Echinopsis mamillosa var. flexilisRausch Echinopsis mamillosa var. kermesina(Krainz) Friedrich Echinopsis orozasanaF.Ritter Echinopsis ritteriBoed. Echinopsis roseolilacinaCárdenas Echinopsis silvaticaF.Ritter Lobivia mamillosa(Gürke) Schlumpb. Pseudolobivia kermesinaKrainz Pseudolobivia orozasana(F.Ritter) Backeb.

Echinopsis mamillosa, synonym Lobivia mamillosa, is a species of cactus from Bolivia and northwest Argentina. ^{[2] [3]}

Description

Echinopsis mamillosa has a solitary growth habit, with globe-shaped stems up to 30 cm (12 in) tall. The stems are dark green, with a diameter of up 8 cm (3.1 in) across, and have 13–17 deep ribs, formed into tubercles. The rounded areoles are spaced up to 12 mm (0.5 in) and produce yellowish spines with brown tips, the one to four central spines being up to 10 mm (0.4 in) long and the 8–12 radial spines 5–10 mm (0.2–0.4 in) long. The flowers are white with rose tips. They are large in relation to the diameter of the stems, up to 8 cm (3.1 in) across and 13–18 cm (5.1–7.1 in) long. ^[3]

Taxonomy

Echinopsis mamillosa was first described in 1907 by the German botanist Max Gürke. It was transferred to the genus Lobivia by Boris Oliver Schlumpberger in 2012. As of November 2025 ^[update] , Plants of the World Online accepted the earlier placement in Echinopsis. ^[2]

Two subspecies have been recognized. Subspecies mamillosa is shorter (typically only up to 6 cm (2 in) tall) with 17 ribs. Subspecies silvatica is taller and has fewer ribs. ^[3] As of November 2025 ^[update] , neither is recognized by Plants of the World Online. ^[2]

Distribution

Lobivia mamillosa is widespread in the Bolivian departments of Chuquisaca and Tarija at altitudes of 1500 to 3000 meters.^{[ citation needed ]}

References

1. "Echinopsis mamillosa Gürke". The International Plant Names Index . Retrieved 2025-11-18.
2. "Echinopsis mamillosa Gürke". Plants of the World Online . Royal Botanic Gardens, Kew . Retrieved 2025-11-18.
3. Anderson, Edward F. (2001), The Cactus Family, Pentland, Oregon: Timber Press, ISBN   978-0-88192-498-5 , p. 273