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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Ordo: Caryophyllales

Familia: Cactaceae
Subfamilia: Cactoideae
Tribus: Cereeae
Subtribus: Trichocereinae
Genus: Pygmaeocereus
Species: P. bieblii – P. bylesianus

Pygmaeocereus H.Johnson ex H.Johnson & Backeb., Nat. Cact. & Succ. Journ. 12: 86 (1957).

Type species: Pygmaeocereus bylesianus Andreae & Backeb.
Note: Suggested as synonym of Haageocereus by Nyffeler & Eggli (2010)


Arthrocereus subg. Pygmaeocereus (H.Johnson ex H.Johnson & Backeb.) Buxb. in Krainz, Die Kakteen (48-49) CVa: [7] (1972).
Haageocereus subg. Pygmaeocereus (H.Johnson ex H.Johnson & Backeb.) Lodé, Cact.-Avent. Int. 97: 2 (2013 publ. 2012), comb. inval.

Native distribution areas:
Primary references

Johnson, J.H. & Backeberg, C. 1957. Nat. Cact. & Succ. Journ. 12: 86.

Additional references

Korotkova, N., Aquino, D., Arias, S., Eggli, U., Franck, A. , Gómez-Hinostrosa, C., Guerrero, P.C., Hernández, H.M., Kohlbecker, A., Köhler, M., Luther, K., Majure, L.C., Müller, A., Metzing, D., Nyffeler, R., Sánchez, D., Schlumpberger, B. & Berendsohn, W.G. 2021. Cactaceae at Caryophyllales. org–a dynamic online species-level taxonomic backbone for the family. Willdenowia 51(2): 251–270. DOI: 10.3372/wi.51.51208 Open access Reference page.


Hassler, M. 2021. World Plants. Synonymic Checklist and Distribution of the World Flora. . Pygmaeocereus. Accessed: 04 Nov 2021.
International Plant Names Index. 2021. Pygmaeocereus. Published online. Accessed: Nov 04 2021. 2021. Pygmaeocereus. Missouri Botanical Garden. Published online. Accessed: 04 Nov 2021.
Korotkova, N. et al. 2021. Pygmaeocereus in Cactaceae at A global synthesis of species diversity in the angiosperm order Caryophyllales. Published online. Accessed: 2021 Nov 04. Reference page.

Pygmaeocereus is a genus of diminutive cacti (family Cactaceae).

It is native to South America.

These species generally do not reach more than 100 mm (4 in) high, and produce a large tuberous root system and scented night flowers.

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