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Cleistocactus
margaritanus forma cristata
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Description: This is a very
nice crested cactus, easily recognizable for its yellowish bristly soft
spines. The standard C. margaritanus is a columnar tree-like cactus with many
branches, up to 3 m tall (Or more), the beautiful crested form,
here described, is rare in collection and highly priced
for its dense covering of spines and the large growing green fan-like
stem.
Stem: Fat, it can form in age a large convoluted mound
and can reach a considerable size (up to 50 cm tall and in diameter, or
more )
Areoles:
Small, roundish, orange-yellow.
Spines: It has many short
bristly pale-yellowhis
spines all quite similar in shape,
that
literally cover the surface of the stems.
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Family:
Cactaceae (Cactus
Family)
Scientific name:
Cleistocactus margaritanus Winter (
= C. chacoanus ?)
forma cristata
Origin: Margarita, O’Connor province, Department of Tarija.
Bolivia. Altitude around 1800m
Conservation status: Listed in
CITES appendix 2.
Synonyms:
- Bolivicereus margaritanus Ritt.
- Borzicactus margaritanus
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Cultivation: It is of easy cultivation. Require
full sun or
half shade.
The plants on their own roots
should be kept in a deep pot with a very draining mineral substrate. But
be particularly careful with watering, which all crested plant require
(rot sensitive). Keep dry during the winter rest. Since they are rapid
growers, and need plenty of space for their roots, repotting should be
done every other year or when the plant has outgrown its pot.
The grafted
plants are easy to grow and will form a large brain-like mounds
with age. Watering during the active growing season (spring and
summer); this will encourage steady growth, and prevent the crest from becoming flabby.
Cultural Practices: It need
a well drained soil mix. Water
generously during the
summer but allow to dry fully before
watering again. During the winter months they should be kept rather dry.
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