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Pausinystalia spp. |
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Shaman Australis Ethnobotanicals (Pausinystalia (Corynanthe) yohimbe - Yohimbe Plants for sale)
Pausinystalia yohimbe
(syn: Corynanthe yohimbe) Yohimbe
Botanical information
An evergreen tree, it grows
to a height of 30m with a spread of 8m. The stem is erect and branching, the
leaves are oval, acuminate and about 10cm long; the seeds are small winged
slivers, almost paper thin.
A native of the rainforests of Nigeria, Cameroon and the Congo, it prefers
rich soils in a protected part sun to shady position, and is drought and frost
tender.
Propagation is by seed or cuttings, but so far all personal attempts at propagation
from cuttings has been unsuccessful. Seed is sown in a free draining seed
mix or sphagnum moss and will need temperatures above 25 deg C to germinate
quickly. Seeds have a very short viability, which declines rapidly in dry
and warm conditions.
Important conservation notice!!: This species is the only commercial
source for the drug yohimbine. European and american pharmaceutical companies
are purchasing hundreds of tonnes of bark every year, which comes from tens of
thousands of mature trees. This is a rainforest tree of a population density of
about 5 trees per hectare and it is almost at the verge of extinction in the wild
due to poor government controls and lack of restraint by the pharmaceutical companies.
The raw bark costs less than one US dollar per kilo from the harvesters and is
resold in the west for the incredible profit of several thousand percent. Only
one government has started to establish plantations, but they are still many years
from producing the needed quantities. In the meantime the destruction goes on
which will see this species virtually eliminated from it's native habitat. We
urge that anyone contemplating the purchase of any yohimbe product should make
enquiries as to whether it is plantation grown. The environmetally responsible
facade of the pharma companies is not to be trusted unless they clearly state
that it is plantation sourced rather than the so called "responsibly and
sustainably harvested" material. Our micropropagated strain is sourced
from a research facility in Indonesia.
Traditional uses
Yohimbe is the only medically recognised natural aphrodisiac. Its use as an aphrodisiac
in its native area has been well documented and its unique effects were soon valued
in many parts of the world, especially in Europe. Less well documented is the
use of yohimbe as a visionary plant in ceremonies like the iboga rituals (see
Tabernanthe iboga). In modern times yohimbe products have found a wide market,
ranging from medically treated impotence and self administered sexual enhancement
to 'smart products' like "cloud9" (tm) and other herbal ecstacy formulations.
It appears to have a very popular synergy with ephedrine containing herbs such
as Ephedra sinica and Ephedra gerardiana.
Pharmacology
There are several alkaloids in Pausinystalia yohimbe, but it is the yohimbine
which is responsible for most of the recognised effects. Yohimbine is an indole
alkaloid somewhat similar and related to ibogaine and mitragynine and is present
in the bark of this species to between 2 and 15%. In small doses of less than
10mg yohimbine it is used medically as a therapy for impotence and frigidity.
Recent research has also shown a lot of promise in the treatment of fatigue
in HIV patients without any noticable side effects. Larger doses of 10-50
mg are used as an aid in tantric sexual rituals (especially with dita)
and in combination with ephedrine as a party smart-drug. Yohimbine causes
the dilation of bloodvessels in the lower abdomen which can cause long and
very hard erections in men and genital stimulation in women. Dosages of 50-100
mg are hallucinogenic and highly stimulating. Dosages in excess of 50mg ,
and especially in excess of 100mg can be very unpleasant and even dangerous.
Yohimbine has also been used to treat hypertension, and this effect may have
serious consequences for people with already low bloodpressure, as fainting
is common. On the other hand it can be used as a stimulant by people who cannot
usually take most stimulants due to high bloodpressure.
Click on Thumbnails to see full size/high resolution picture! (in new
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P.yohimbe seed
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P.yohimbe TC clone
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P.yohimbe TC clone plantlet
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P.yohimbe (small plant)
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P.yohimbe (small plant)
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