Origin and Habitat: Homeland these pretty plants are mainly Mexican state of Coahuila, Nuevo Leon, Tamaulipas, Queretaro, San Luis Potosi, Hidalgo and Zacatecas. The relatively large area of occurrence, along with a strong tendency to variability caused significant problems with the generic classification of individual plants of this species, and it is thus not possible to define either the spatial or systematic limits of the taxon (same as Stenocactus ochoterenanusSN|21700]]SN|21700]]?). There is much variation within the current taxon, some of which may correspond to other species.

• Stenocactus rosasianus (H.C.Whitmore ex Pechanek)
• Echinofossulocactus boedekerianus f. rosasianus (H.C.Whitmore ex Pechanek) P.V.Heath
• Echinofossulocactus rosasianus H.C.Whitmore

• Stenocactus ochoterenanus Tiegel
• Echinofossulocactus boedekerianus f. ochoterenanus (Tiegel) P.V.Heath
• Echinofossulocactus ochoterenaus (Tiegel) H.C.Whitmore
• Stenocactus bustamantei Bravo
• Echinofossulocactus bustamantei (Bravo) Croizat
• Stenocactus densispinus (Tiegel ex Pechanek)
• Echinofossulocactus boedekerianus f. densispinus (Tiegel ex Pechanek) P.V.Heath
• Echinofossulocactus densispinus Tiegel ex Pechanek
• Stenocactus heteracanthus (Muehlenpf.) A.Berger
• Brittonrosea heteracantha (Muehlenpf.) Speg.
• Echinocactus heteracanthus Muehlenpf.
• Echinofossulocactus crispatus f. heteracanthus (Muehlenpf.) P.V.Heath
• Echinofossulocactus heteracanthus (Muehlenpf.) Britton & Rose
• Efossus heteracanthus (Muehlenpf.) Orcutt
• Stenocactus lexarzai Bravo
• Echinofossulocactus lexarzai (Bravo) Croizat
• Stenocactus parksianus (C.Schmoll ex Pechanek)
• Echinofossulocactus boedekerianus f. parksianus (C.Schmoll ex Pechanek) P.V.Heath
• Echinofossulocactus parksianus C.Schmoll ex Pechanek
• Stenocactus rosasianus (H.C.Whitmore ex Pechanek)
• Echinofossulocactus boedekerianus f. rosasianus (H.C.Whitmore ex Pechanek) P.V.Heath
• Echinofossulocactus rosasianus H.C.Whitmore
• Stenocactus tellii (A.Berger ex hort.)
• Echinocactus tellii A.Berger ex hort.
• Echinofossulocactus crispatus f. tellii (A.Berger ex hort.) P.V.Heath
• Echinofossulocactus tellii Y.Itô

Description: Echinofossulocactus rosasianusSN|21722]]SN|21722]] (Stenocactus) is a local or morphological form of the widespread and variable Stenocactus ochoterenanusSN|21700]]SN|21700]]. It has a dark green body with rather thin and undulate ribs, broader at the areoles. The body is covered by numerous, acicular radial spines. The 4 central spines are usually more or less terete and the plant body is generally obscured by the spination. The name Echinofossulocactus rosasianusSN|21722]]SN|21722]] is an invalid name (nom. nud.) and is not accepted by many botanists that treat it as synonym, but it still has a value for a collector because they identify plants with particular characters.
Stem: Solitary , globose, vivid green with a flat tops up to 8 cm tall, 10 cm in diameter.
Flowers: Pale to bright pink, 2.5 cm long.
Fruit: Greenish with whitish scales.

Notes: Echinofossulocactus rosasianus nowadays is not considered a distinct species or variety but only one of the variable phenotypes of the clinal species Echinofossulocactus ochoterenanus (now Stenocactus).

Bibliography: Major references and further lectures
1) Gómez-Hinostrosa, C., Sánchez , E., Guadalupe Martínez, J. & Bárcenas Luna, R. 2013. Stenocactus ochoterenanus. The IUCN Red List of Threatened Species. Version 2015.1. <www.iucnredlist.org>. Downloaded on 04 June 2015.

Cultivation and Propagation: Small growing and easy to to care and flower. Because of it’s small size makes a great potted plant specimen, great for beginning collectors. It needs regular cacti soil with good drainage.
Propagation: Seeds (usually) or by the shoots of adult plants (if available).
Exposure: need some direct sun but is tolerant and prefers light shade during the hot Summer months.
Whatering: Allow to dry between watering. Watering should be curtailed during the winter months.
Frost Tolerance: -5°C if kept dry.