Morphological Classification

• This classification is based on the plant part used or the morphological characteristics of the drug.

• It helps in the identification of crude drugs.

Categories and Examples

Category	Examples
Leaf drugs	Senna, Tea, Digitalis
Bark drugs	Cinchona, Cinnamon
Root drugs	Rauwolfia, Liquorice
Flower drugs	Clove, Saffron
Seed drugs	Nux vomica, Isabgol
Fruit drugs	Fennel, Amla
Whole plant drugs	Ephedra, Lobelia

Advantages

• Useful for easy identification of drugs.

• Helps in understanding plant-based drug sources.

Disadvantages of Morphological Classification

• Does not consider the chemical constituents or therapeutic effects of the drugs.