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Family:
Cactaceae
(Cactus
Family) Scientific Name:
Mammillaria
compressa cv. Yokan
Origin:
The origin of this
nursery
produced cultivar
is unknown, it was previously known as
"Mammillaria sp. forma mostruosa forma cristata".
Conservation status: Listed in
CITES appendix 2.
Sometime "Yokan" produce some normal shoots. Which are not monstrous at all! And also green M. compressa
forma cristata.
But all this very different forms are the same plant! They are
epigenetic variation not genetic mutant!
Cultivation: It is a
relatively rapid growing species. This is easily grown into clumps,
but it does often have an irregular pattern of offsetting. Water
regularly in summer, but do not over-water (rot prone). Use a pot with
good drainage and a very porous potting media. Keep dry in winter. Feed
with a high potassium fertilizer in summer. It is quite frost resistant
if kept dry, hardy as low as -5° C. Outside full sun or afternoon shade,
inside it needs bright light, and some direct sun.
Easily clustering and easily flowered. Most plants will offset readily,
and clumps can be produced in a few years.
Propagation: By
division of larger clumps
or graft.
Picture of
conspecific taxa, varieties, forms and cultivars:
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