P, Q, R, S, T

Sheep's sorrel (Rumex acetosa) is a perennial plant that is part of the knotweed family (Polygonaceae). This versatile plant grows to a height of 10 to 60 cm and spreads via numerous long, underground runners.
The leaves, which reach a length of 3 to 7 cm, have a characteristic spike shape and vary from obovate to narrow linear. From May until deep into autumn, sheep's sorrel adorns itself with plumes that usually have a greenish hue, sometimes with a light red glow. In certain specimens, the plumes can even turn dark red, which provides a striking contrast in the landscape.

Thyme (Thymus vulgaris L.) is not only a great seasoning in the kitchen, but also an ally for our health. This herb, recognizable by its characteristic smell, soothes the respiratory tract and promotes freer breathing. In addition, thyme supports digestion.
This herb grows wild in Europe, Asia and Africa and thrives in hardy shrubs about 40 centimeters high, even on dry and stony soils. Both the leaves and flowers of thyme contain active substances that benefit our health. The ancient Greeks and Romans already used real thyme to ease their breathing. Today, thyme is still used in licorice and syrups for its soothing effects on the respiratory tract.

The willow (Salix alba), also known as 'white willow' in English, naturally contains the bioactive substance salicin. This tree is common in the Netherlands. In 1828, the German pharmacist Johann Andreas Buchner discovered that the bark of the willow tree contains high concentrations of the glycoside salicin. This substance is beneficial for maintaining flexible joints and muscle health.