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Morphology and Histology of vishamushti - Ageratum conyzoides Linn.

vishamushti :

Vishamushti - Ageratum conyzoides - fl


Morphology:

Ageratum in an annual herb

It is an aromatic drug.

The plant has numerous adventitous   slenter roots present in clusters growing from nodes & internodes. There are pale  yellow & measures up to  15 cm long and 2.5mm thick.

Stem
Long, cylindrical, rough, hispidity hairy , they are much branched & green when fresh. Dry young stem is pale yellow, pubescent, shrunken & flattered.

Leaves
They are opposite alternative, upper region, petiolate  ovate or triangular ovate.Lamina is thin more or less, hairy on both sides.Venation is unicostate, reticulate.

Flower
Numerous, pale blue, white, pink in colour. They are foul smelling.

Fruits
Fruits are minute&black.

Inflorescence: Compound  coryamb

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