Pharmacognosy I Lecture 5: Leaves

What is one of the active constituents of the plant?

What is one of the therapeutic uses of the plant due to its volatile oil?

Which of the following is NOT an active constituent of the plant?

What is one of the therapeutic uses of the plant?

How many therapeutic uses are mentioned for the plant?

What are the three active constituents of the plant?

What is NOT a therapeutic use of the plant?

What is the use of volatile oil in the plant?

How many active constituents are mentioned for the plant?

What is the therapeutic use of the plant related to its antioxidant property?

Leaves Containing Alkaloids

Stramonium Leaf, Egyptian Henbane Leaf, Belladonna Leaf, Jaborandi Leaf, Boldo Leaf, Tea Leaf, and Coca Leaf are examples of leaves containing alkaloids.

Leaves Containing Glycosides

Eucalyptus leaves are obtained from Mediterranean countries and contain volatile oils (0.5-4%), cineole (54-95%), tannins, and triterpenes and flavonoids (traces).
Eucalyptus is used as an astringent, antiseptic, decongestant, expectorant, and bronchodilator.
It is used to treat bronchitis and bronchial asthma as a herbal tea.
Eucalyptus oil is used in cough syrups and cough drops, and has antiviral effects against Herpes simplex.

Thyme Leaves

Thyme leaves are obtained from the Mediterranean and European countries and contain volatile oils (thymol 20-54%), flavonoids, and tannins.
Thymol is used in mouth wash preparations due to its antiseptic activity.
Thyme tea is used to treat cough, bronchitis, and upper respiratory infections.
Thyme tea is used to treat dyspepsia after heavy meals, but it is not recommended for pregnancy (especially in the first trimester).

Rosemary Leaves

Rosemary leaves are obtained from Southern Europe, France, and Spain and contain volatile oil, flavonoids, and phenolic acids.
Rosemary has powerful antioxidant properties and is used in perfumery and aromatherapy.

This quiz covers the leaves of various plants containing alkaloids and glycosides, including Stramonium, Belladonna, and Tea leaves. Learn about the characteristics and uses of these leaves in pharmacognosy.