The hollow internodes
of female bamboos (Bambusa arundinacea) accumulate a white earthy
siliceous concretion called Vanshlochan (Bamboo mana).It is the residue
of the watery liquid, in the form of amorphous silica in microscopically
fine state. It occurs as chalky, translucent or transparent tasteless
and 2.5cm thick fragments of masses, usually of the colour of pumice.
Bamboo is a plant of Gramine, poaceae (family of grasses) having woody,
hollow, round, straight, jointed stem growing in tropical countries to
the height of forty feet and upward.. The plant grows wild all over
India, mainly in forests of western and southern parts of the country.
It grows up to 1500 – 2000 meters altitude. It contains silica 90.5% or
silicon as hydrate of silicic acid, peroxide of iron0.9%, potash1.1,
alumina 0.4, and vegetable matter. It is largely used as a cooling
anabolic tonic to help in chronic and general debility and as an
aphrodisiac. Vanslochan is a rejuvenative for lungs and is salutary in
cough, asthma, tuberculosis and urinary infections. It is also used in
various disorders like indigestion, hyperdipsia, paralytic complaints,
diarrhea, vomiting, Rakta pitta, heart diseases, poisoning cases, fever
and a general tonic in convalescents.