Oregano – Botanical Profile

Oregano

Origanum vulgare L., Lamiaceae Family

Distribution and Habitat

Origanum vulgare L. is native to Europe, Asia, and North Africa. It is widely naturalized in many other parts of the world, including North America, where it is both cultivated and found growing in the wild.

Oregano typically grows in sunny, open areas. It is commonly found on dry meadows, hillsides, forest edges, roadsides, and rocky slopes.

The plant prefers well-drained soils, often calcareous, and can tolerate poor, dry conditions.

Botanical and Morphological Description

• Root: Fibrous root system
• Stem: Erect, square, branched
• Leaves: Opposite, ovate, entire margins; aromatic
• Flowers are small, bilabiate, pink to purple, the calyx is tubular, the corolla is bilabiate, 4 stamens, ovary is superior. The flowers are arranged in inflorescences, spikes or panicles
• Fruit: Nutlets

The main part used is the aerial part of the plant, especially the leaves and flowering tops. These parts contain the highest concentration of essential oils, which give oregano its aroma and medicinal properties.

Harvesting

Oregano is usually harvested during the flowering period, when its active compounds are at their peak. The stems are cut a few centimeters above the ground, preferably on a dry, sunny day after the dew has evaporated. The harvested stems are then tied into small bundles and hung upside down in a dry, well-ventilated, and shaded place to dry.

Preparation (how it is obtained)

After drying, the leaves and flowers are separated from the stems and stored in airtight containers.

Oregano can be used as dried leaves for tea or cooking, as an infusion (herbal tea) , as essential oil, obtained by steam distillation, as tinctures or extracts for medicinal purposes  Proper harvesting and drying help preserve the plant’s aroma and therapeutic qualities.