There were 11 accepted species found [distribution filter:
1 Espostoa blossfeldiorum (Werderm.) Buxb. distributionfilter: global
homotypic synonyms:
Cephalocereus blossfeldiorum Werderm.; Cereus blossfeldiorum (Werderm.) Backeb.;
Facheiroa blossfeldiorum (Werderm.) W.T.Marshall;
heterotypic synonyms:
Thrixanthocereus cullmannianus F. Ritter;
links:    
IPNI (International Plant Names Index)   
WFO (World Flora Online)   
Google   
Flickr
2 Espostoa calva F.Ritter distributionfilter: global
links:    
IPNI (International Plant Names Index)   
WFO (World Flora Online)   
Google   
Flickr
3 Espostoa frutescens Madsen distributionfilter: global
links:    
IPNI (International Plant Names Index)   
WFO (World Flora Online)   
Google   
Flickr
4 Espostoa guentheri (Kupper) Buxb. distributionfilter: global
homotypic synonyms:
Cephalocereus guentheri Kupper; Cereus guentheri (Kupper) Werderm.;
Espostoa guentheri (Kupper) Buxb. ex Eggli;
links:    
IPNI (International Plant Names Index)   
WFO (World Flora Online)   
Google   
Flickr
5 Espostoa haagei (Poselger ex Rumpler) F. Ritter distributionfilter: global
homotypic synonyms:
Pilocereus haagei Poselger ex Rumpler; links:    
IPNI (International Plant Names Index)   
WFO (World Flora Online)   
Google   
Flickr
6 Espostoa lanata (Kunth) Britton & Rose distributionfilter: global
homotypic synonyms:
Cactus lanatus Kunth; Cereus lanatus (Kunth) DC.;
Cleistocactus lanatus (Kunth) A.Weber;
Oreocereus lanatus (Kunth) Britton & Rose;
Pilocereus lanatus (Kunth) A. Weber;
heterotypic synonyms:
Cephalocereus dautwitzii (F. Haage) Houghton;
Cereus dautwitzii (Haage) Orcutt;
Cereus sericatus Backeb.;
Espostoa dautwitzii (Haage) Borg;
Espostoa dautwitzii Backeb.;
Espostoa hylaea F.Ritter;
Espostoa laticornua Rauh & Backeb.;
Espostoa procera Rauh & Backeb.;
Espostoa sericata (Werderm. & Backeb.) Backeb.;
Espostoa superba F.Ritter;
Pilocereus dautwitzii F. Haage;
links:    
IPNI (International Plant Names Index)   
WFO (World Flora Online)   
Google   
Flickr
7 Espostoa melanostele (Vaupel) Borg distributionfilter: global
homotypic synonyms:
Binghamia melanostele (Vaupel) Britton & Rose;
Cephalocereus melanostele Vaupel; Cereus melanostele (Vaupel) A. Berger;
Cereus melanostele (Vaupel) Werderm.;
Haageocereus melanostele (Vaupel) W.T. Marshall;
heterotypic synonyms:
Espostoa haagei (Poselg. ex Rümpler.) Borg;
links:    
IPNI (International Plant Names Index)   
WFO (World Flora Online)   
Google   
Flickr
8 Espostoa mirabilis F.Ritter distributionfilter: global
heterotypic synonyms:
Espostoa baumannii Knize;
links:    
IPNI (International Plant Names Index)   
WFO (World Flora Online)   
Google   
Flickr
9 Espostoa ritteri Buining distributionfilter: global
links:    
IPNI (International Plant Names Index)   
WFO (World Flora Online)   
Google   
Flickr
10 Espostoa senilis (F.Ritter) N.P.Taylor distributionfilter: global
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links:    
IPNI (International Plant Names Index)   
WFO (World Flora Online)   
Google   
Flickr
11 Espostoa utcubambensis G.J.Charles distributionfilter: global
links:    
IPNI (International Plant Names Index)   
WFO (World Flora Online)   
Google   
Flickr