Echinopsis chamaecereus

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Echinopsis chamaecereus
Echinopsis chamaecereus BlKakteenT168.jpg
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Genus: Echinopsis
E. chamaecereus
Binomial name
Echinopsis chamaecereus
H.Friedrich & Glaetzle[1]
  • Cereus silvestrii Speg.
  • Chamaecereus silvestrii (Speg.) Britton & Rose
  • Lobivia silvestrii (Speg.) G.D.Rowley

Echinopsis chamaecereus is a species of cactus from Argentina. Synonyms include Chamaecereus silvestrii and Lobivia silvestrii.[1] It has been called the "peanut cactus",[2] This plant should not be confused with Echinopsis silvestrii, another species with a very different appearance.

E. chamaecereus has long stems about 1 cm (0.4 in) across. Orange flowers up to 4 cm (1.6 in) wide appear in late spring. In cultivation, E. chamaecereus is hardy to temperatures as low as −7 °C (19 °F) if kept dry.[2]

E. chamaecereus was first collected and described in 1896 as Cereus silvestrii by Italian-Argentinian botanist Carlo Luigi Spegazzini in the mountains between the provinces of Tucuman and Salta, Argentina.[3] However, subsequent expeditions to the area failed to find the species Spegazzini had collected and it is unknown whether the species has gone extinct since the initial collection.[4]

This plant is a recipient of the Royal Horticultural Society's Award of Garden Merit.[5]


  1. ^ a b c Anderson, Edward F. (2001), The Cactus Family, Pentland, Oregon: Timber Press, ISBN 978-0-88192-498-5, p. 262
  2. ^ a b Anderson, Miles (1999), Cacti and Succulents : Illustrated Encyclopedia, Oxford: Sebastian Kelly, ISBN 978-1-84081-253-4, p. 67
  3. ^ Spegazzini, Carlo (1905). Cactacearum Plantensium Tentamen. Buenos Aires, Argentina: Juan A. Alsina. p. 51.
  4. ^ Lambert, Jacques G. (1992). Cactus d'Argentine. Concordia-Roeselare. p. 32.
  5. ^ "Echinopsis chamaecereus". Royal Horticultural Society. Retrieved 5 June 2020.