Family Cactaceae


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Thelocactus bicolor
Common Name(s): Glory of Texas, Straw Spine Cactus, Texas Pride
Synonym(s): Echinocactus bicolor, Hamatocactus bicolor, Ferocactus bicolor, Echinocactus bicolor, Thelocactus pottsii, Echinocactus rhodaophthalmus, Echinocactus bolaensis, Echinocactus schottii, Echinocactus wagnerianus, Thelocactus wagnerianus, Thelocactus flavidispinus, Thelocactus schwarzii

T. bicolor
subsp. schwarzii

Photo taken at: My Collection, San Clemente, CA
click any picture to enlarge
Subspecies: schwarzii


T. bicolor
subsp. flavidispinus
Photo taken at: Desert Botanical Garden , Phoenix, AZ
Subspecies: flavidispinus

Thelocactus conothelos
Common Name(s):
Synonym(s): Echinocactus conothelos, Gymnocactus conothelos, Torreyocactus conothelos, Echionocactus smithii, Thelocactus smithii, Meolloydia smithii, Pediocactus smithii, Echinocactus saussieri, Thelocactus saussieri, Thelocactus panarottoanus

T. conothelos

Photo taken at: Huntington Library, San Marino, CA


T. conothelos
Photo taken at: Gene Schroeder's Private Collection, Orange, CA

Thelocactus hexaedrophorus
Common Name(s):
Synonym(s): Echinocactus hexaedrophorus, Echinocactus fossulatus, Thelocactus fossulatus, Echinocactus droegeanus, Echinocactus labouretianus, Thelocactus lloydii

T. hexaedrophorus

Photo taken at: Desert Botanical Garden , Phoenix, AZ


T. hexaedrophorus
Photo taken at: Cal Cactus, Bonsall, CA

T. hexaedrophorus
Photo taken at: Cal Cactus, Bonsall, CA

Thelocactus lausseri
Common Name(s):
Synonym(s):

T. lausseri

Photo taken at: Gene Schroeder's Private Collection, Orange, CA


Thelocactus leucacanthus
Common Name(s):
Synonym(s): Echinocactus leucacanthus, Ferocactus leucacanthus, Cereus maelenii, Cereus tuberosus, Echinocactus ehrenbergii, Thelocactus ehrenbergii, Thelocactus porrectus, Thelocactus sanchezmejoradai

T. leucacanthus

Photo taken at: Desert Botanical Garden , Phoenix, AZ


T. leucacanthus
Photo taken at: Gene Schroeder's Private Collection, Orange, CA

Thelocactus macdowellii
Common Name(s):
Synonym(s): Echinocactus macdowellii, Echinomastus macdowellii, Neolloydia macdowellii, Thelocactus conothelos

T. macdowellii

Photo taken at: Huntington Library, San Marino, CA


Thelocactus rinconensis
Common Name(s): Bird's Nest Cactus
Synonym(s): Echinocactus rinconensis, Echinocactus lophothele, Echinocactus phymatothelos, Thelocactus phymatothelos, Echinocactus nidulans, Thelocactus nidulans, Thelocactus multicephalus

T. rinconensis

Photo taken at: Grigsby Cactus Gardens, Vista, CA


T. rinconensis
Photo taken at: C&J Cactus Nursery, Vista, CA

T. rinconensis
Photo taken at: Altman Growing Grounds, Vista, CA

Thelocactus tulensis
Common Name(s):
Synonym(s): Echinocactus tulensis, Echinocactus buekii, Thelocactus buekii, Thelocactus krainzianus, Thelocactus matudae, Thelocactus flavus

T. tulensis

Photo taken at: C&J Cactus Nursery, Vista, CA


T. tulensis
Photo taken at: Gene Schroeder's Private Collection, Orange, CA

T. tulensis
Photo taken at: Gene Schroeder's Private Collection, Orange, CA

*Currently 8 of 12 known species shown in this genus.