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Thelocactus rinconensis SB301 Rinconada, Nuevo Leon, Mexico.
The remarkable characteristics of this species are a depressed and glaucous body and very long spines, SB301 Rinconada.
 

Description: Usually solitary, develops a squat and highly ribbed stem with a  flattened top, up to 20 cm in diameter.  It can have either a glaucous-grey or green epidermis,
Spines: Variable in length, depending on the clone, dark, usually black-brown but also grey or yellow, with a distinctive silvery appearance, and sometimes shredding.
Flowers: pink or whitish, the plants usually fail to flower until they are 5-9 years old.
Cultivation: Easy to cultivate. Water moderately from Spring to Autumn. In Winter, keep dry.
Sun Exposure: Full sun to light shade.
Reproduction: Nearly always from seed, since the plant rarely produces plantlets.
 

Photo of conspecific taxa, varieties, forms and cultivars of Thelocactus rinconensis:

• T. rinconensis

• T. rinconensis ssp. freudenbergeri

• Thelocactus rinconensis var. phymatothelos

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Scientific name:   Thelocactus rinconensis ssp. rinconensis (Poselger) Britton & Rose, Cact. 4: 7 (1923).

Origin: occurs Coahuila and Nuevo Leon, Mexico.

Synonyms:

• Thelocactus lophothele var. nidulans
• Echinocactus nidulans
• Thelocactus rinconensis var. phymatothelos
• Echinocactus phymatothelos
• Thelocactus rinconensis var. nidulans
• Thelocactus rinconensis ssp. phymatothelos
• Thelocactus nidulans,
• Thelocactus phymatothelos Poselger ex Ruempler,
  in Förster, Handb. Cact., ed. 2, 602 (1885)
• Thelocactus phymatothelos Br. & R. (' phymatothele'),
  Cact. 4: 8 (1923)
• Thelocactus multicephalus
• Thelocactus lophothele Br. & R.,
  Bull. Torrey Bot. Club 49: 251 (1922)
• Echinocactus lophothele Salm-Dyck,
  Allg. Gartenz. 18: 395 (1850).
• Thelocactus rinconensis ssp. freudenbergeri
• Thelocactus rinconensis var. freudenbergeri
• Echinocactus rinconensis Poselger,
  Allg. Gartenz. 23: 18 (1855).
• Echinocactus rinconadensis Schumann,
  Gesambt. Kakt. 433 (1898).
• Thelocactus rinconensis ssp. multicephalus
• Thelocactus rinconensis ssp. nidulans

Thelocactus rinconensis

Thelocactus rinconensis var. phymatothelos Glass & Foster, Cact. Succ. J. (US) 49: 246 (1977). Thelocactus rinconensis ssp. phymatothele (Poselger) Glass, Ident. Guide Threatened Cacti of Mexico 1: TH/RIN (1997). Thelocactus rinconensis ssp. phymatothelos (Poselger) Doweld nom. superfl., Sukkulenty 1: 30 (1999). Thelocactus rinconensis ssp. icamolensis Halda & Kupcak, Acta Mus. Richnov. Sect. natur. 7: 75 (2000).

T. lophothele (rinconensis).
 

All the information and photos in cactus art files are now available also in the new the Enciclopedia of Cacti. We hope you find this new site informative and useful.