Which of the following is derived from the leaves of the mignonette tree?

The correct answer is derived from the leaves of the mignonette tree, which is henna. Henna is made from the dried leaves of the Lawsonia inermis plant, commonly known as the henna plant. When these leaves are crushed into a fine powder and mixed with water, they create a paste that, when applied to the skin or hair, can produce a reddish-brown dye. This dye has been used for centuries in various cultures, primarily for body art and hair coloration.

The other options do not originate from the mignonette tree. Lavender comes from the flowering tops of the lavender plant, which is known for its aromatic properties. Chamomile is made from the dried flowers of the chamomile plant, typically used for its soothing effects in teas and skincare. Aloe vera is derived from the gel-like substance found within the leaves of the aloe vera plant, known for its moisturizing and healing properties. Each of these plants has distinct uses and origins, which highlight the unique characteristics of henna as the correct answer.