(Cárdenas) Backeberg, Das Kakteenlexikon, p.416, 1966
Distribution: Cochabamba department, Bolivia
Grows mainly on a flat, dry, stony area
along the banks of the Rio Lopez, just before the moister zone of the
tiraquensis populations. Altitude 2950 – 3700 m.
Conservation status: Listed in
CITES Appendix II.
- Rebutia polymorpha
Card., Neue und interessante Kakteen aus Bolivien
- Rebutia polymorpha Cárd.
spec. nov., Kakt. und and. Sukk., 16: 115, 1965
- Weingartia polymorpha
(Card.) Brandt, Kakt. Orch.-Rundschau, 2:70, 1977
Sulcorebutia steinbachii var.
polymorpha (Cárdenas) J. Pilbeam, Sulcorebutia and Weingartia,
A Collector´s Guide, p. 80, 1985
Sulcorebutia steinbachii subvar.
Sulcorebutia has been named polymorpha (which means "many forms") for
the variability of the plant in habitat. It is a clumping plant
clumps of many
and are typical for S.
Stem: 24-40 mm tall, up to 50 mm wide, flattened globose, dark
green sometime tinged red.
Ribs: 12-26 poorly distinguished, forming oblong rhomboidal
with short grey felt
(almost naked) 3 – 6 long, 1,5-2 mm large.
Radial spines: 9-14, about 10 mm long, addpressed against the
body, white, yellow, brown with darker tips or almost black, ±curved
slow to develops, frequently absent on new areoles at plant apex.
Central spines: None or 1 to 3 stouter 20-30 mm long.
Flowers: Up to 3,5 cm long and 4,5 in diameter, yellow or
(usually) magenta , both colours occurring at random in habitat.
Magenta flowers with yellow or white inner petals are also available.
Fruits: Olive green
brown at maturity.
Conspecific taxa, varieties,
forms and cultivars of plants belonging to the
Taxon has lots of synonyms whit
several controversial varieties and subspecies and comprises a multitude
of different forms, but where each form is linked to others by
populations of plants with intermediate characteristics):