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Home » Plant infomation

Tectona grandis  L.F.

   

click to enlarge image

Botanical Name

:

Tectona grandis L.F.

English Name

:

Teak Tree

Synonym(s)

:

Jatus grandis (L.f.) Kuntze, Tectona theka Lour., Theka grandis (L.f.) Lam

Family

:

Verbenaceae

 

General Info

Description

Teak is a medium to large-sized tree, which shed off its leaves at least once a year. It reaches to about 50 m high with irregularly formed crown and with low buttresses. In natural stand, the trunk is generally straight and branchless up to 20 m with up 250 cm diameter at breast height. Sometimes small branches sprout on the main trunk. The bark is light brown to grey, the dead outer bark greyish black and drop off in short longitudinal flakes. The ultimate young twigs are four-angled in cross section. The leaves are simple oppositely in pairs and alternately at right angles with each pair which form four rows termed decussate and some are in three (ternate). The leaf blade is egg to lance-shaped, sometimes broadly egg-shaped, big, about 36 cm broad and 54 cm long, the base is wedged-shape, the top abruptly pointed, leathery, the surfaces hairy, rather rough to the touch on the above surface. The young leaves are more or less purplish. Cluster of flowers are terminal and sometimes axillary. The flowers are bisexual, i.e. both pistil and stamens are in one flower. The flowers are loosely set in the flower clusters. The fruits are somewhat fleshy when green, more or less rounded, slightly four-angled, when dry woody. The seeds are without albumen (nutritive material stored in seed), i.e., endosperm.

Herb Effects

Acrid, cooling, laxative, sedative and possess anthelmintic and expectorant (wood).

Links

Sagon

Chemistry

Active Ingredients

Tectoquinine (leaf and heartwood); tactole and lepachol (heartwood); betulin (stem bark); betulinic acid (root, stem bark, wood).

Chemistry of Active Ingredients
Product Categories

Name

CAS#

IUPAC Name

Formula

Structure

Product Categories
Betulin Not Available Not Available C30H50O2 Click Here To Enlarge
Betulinic acid 4481-62-3 Not Available C30H46O3 Click Here To Enlarge

Pharmacology

Medicinal Use

In bronchitis (bark decoction), inflamed eye lids (ash from wood) and anuresis (root); to relieve the swelling of eyelids (charred wood); as a hair tonic (wood oil).

Reference

Chandel et al., Biodiversity in Medicinal and Aromatic Plants in India.


Sharma, Classical Uses of Medicinal Plants.

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