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This is a unusual but very eye-catching species,
even without its magenta flowers, due to the plant being so highly
coloured in green and purple and for the beautiful small dark
pectinaded
spines .
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Description: Miniature
clustering species (rarely
solitary), readily forms
clumps of many
heads
Stem:
individual stems 2(4) cm tall, 3(5) cm in diameter. The stem is
covered by flat
tubercles (5mm wide) which vary in colour between dark green and
violet. In older plants tubercles are arranged in up to 16
spiral line merging in the apex.
Areoles : Long
narrow with short white
felt.
Spines:
9-11 short black
radial spines, 1 to 2 mm long, pointing diagonally and downward,
completely flattened against the
tubercles, they take the characteristic form of a fishbone.
Roots:
Conical
Flower:
20 - 50 mm long, 35 - 50 mm wide;
floral tube
funnel-shaped yellowish green with tan coloured
scales, tepals deep magenta with a clearer
throat.
Fruit:
Reddish brown, 4 - 5 mm wide.
Phenology:
Blossoming time:
late spring.
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Floral tube
funnelform yellowish-green with tan coloured
scales.
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Masses of gorgeous deep violet
flowers in late spring. |
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Cultivation:
Very difficult to find high quality plants of this species in
cultivation, S. rauschii loves a very
permeable, coarse
mineral soil as well as to be strictly
kept dry throughout the
winter quiescent period since it is very
sensitive to any
moisture excesses, To prevent
rottenness it is also advisable to surround its
root neck by very rough
sand or
grit, this help a fast water
drainage and an appropriate
air circulation.
For its
sensitive roots this species is frequently
grafted to avoid root problems.
Watering Needs:
Water moderately in the
growing season, keep
dry during the
winter rest
Frost Tolerance:
Overwinter in a cool place (at 0/10°C) this is important for
the flowers as well as for plants
health. Without this cool winter period they normally wont get
any
buds.
Sun Exposure:
Needs a full sun exposure ( light shadow my be useful in the
hottest summer days)
Propagation: Seed,
cutting,
grafting
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Photo of
conspecific taxa, varieties, forms and cultivars of
plants belonging to the Lobivia
canigueralli complex
(This
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):
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Family:
Cactaceae
(Cactus
Family)
Scientific
Name:
Sulcorebutia
rauschii
G. Franck 1969
Published
in: Frank G., Kakt. und and. Sukk., 20 (12): 238 - 239 (1969)
Distribution: Sucre, Chuquisaca, Bolivia
Conservation status: Listed in
CITES
Appendix II.
Synonyms:
- Rebutia canigueralii Cárdenas
1964
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Sulcorebutia canigueralii
(Cardenas) Buining & Donald 1965
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Weingartia canigueralii
(Cardenas) F.H.Brandt 1978
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Weingartia rauschii
(G.Frank) F.H.Brandt 1978
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Cultivation and Mail Sale 
