Origin and Habitat: Sinaloa, Mexico.
Habitat: Echinocereus floresiiSN|8685]]SN|8685]] v. Bergform is a mountain form presumably growing in the higher parts of the areal.

• Echinocereus sciurus subs. floresii var. Bergform hort.
• Echinocereus floresii var. Bergform hort.

• Echinocereus sciurus (K.Brandegee) Dams
• Cereus sciurus K.Brandegee
• Echinocereus subterraneus Backeb.

• Echinocereus sciurus subs. floresii (Backeb.) N.P.Taylor
• Echinocereus bristolii subs. floresii (Fritz Schwarz ex Backeb.) W.Blum & Mich.Lange in W.Blum et al.
• Echinocereus floresii Fritz Schwarz
• Echinocereus sciurus var. floresii (Fritz Schwarz ex Backeb.) N.P.Taylor
• Echinocereus sciurus subs. floresii var. Bergform hort.
• Echinocereus floresii var. Bergform hort.

Description: Echinocereus sciurusSN|8685]]SN|8681]] subs. floresii v. Bergform, also known as Echinocereus floresiiSN|8681]]SN|8685]] v. Bergform is an unpublished catalogue name (nomen nudum), unusual among the floresii in producing a long thin central spine. It is, as the name states, a mountain form ("Bergform" in Germany) presumably coming from the higher part of the species range. It is a poorly know taxon easily telling apart from other conspecific variety for its thinner spination whit reddish central spines. All the other characteristics, namely size and form of stems, roots, flowers and fruit are identical.
Habit: It is a densely cespitose cactus species, with numerous short, upright heads that can form clumps to 30 cm in diameter.
Roots: Tuberous.
Stems: Slender, short, mostly erect, cylindrical, tapered toward the tips, often 25 cm tall, and 4 cm in diameter partially hidden by the many short dense spines.
Areoles: Small at first woolly, becoming naked 5-8 mm apart on the same rib.
Spines: Many thin flexible more or less appressed.
central spines: 1 (or more) up to 15 mm long bristly with darker reddish tips.
Flower: Bright pink 5 cm long, 7 cm in expansion when fully open occurring down the sides of the plant. Ovary and tube densely spinose. Stigma lobes green. Self sterile.
Blooming season: Late spring.
Fruits: Subglobose, reddish green with white pulp.
Seeds: 1 mm long, tuberculate.