Urticaceae

Urticaceae

Urtica dioica flowers

The Urticaceae are a family of flowering plants commonly known as the nettle family. The family includes a variety of species, many of which are known for their stinging hairs. The family is part of the order Rosales and includes approximately 54 genera and over 2,600 species.

Description

Diagram of Urtica flower

Members of the Urticaceae family are typically herbaceous plants, shrubs, or small trees. They are characterized by their opposite or alternate leaves, which are often serrated. The flowers are usually small and inconspicuous, often greenish, and can be either unisexual or bisexual. The family is well-known for the presence of stinging hairs, particularly in the genus Urtica.

Distribution

The Urticaceae family is cosmopolitan, found in a wide range of habitats from tropical to temperate regions. They are particularly abundant in tropical rainforests and are also found in temperate zones.

Notable Genera and Species

Urtica

Urtica dioica

The genus Urtica includes the well-known stinging nettles, such as Urtica dioica. These plants are known for their stinging hairs that can cause a painful rash upon contact with skin.

Pilea

Pilea cadierei

Pilea pumila

The genus Pilea includes species such as Pilea cadierei, commonly known as the aluminum plant, and Pilea pumila, known as clearweed. These species are often grown as ornamental plants.

Boehmeria

Boehmeria nivea

Boehmeria nivea, commonly known as ramie, is a species cultivated for its fiber, which is used in textiles.

Elatostema

Elatostema umbellatum

The genus Elatostema includes species such as Elatostema umbellatum, which are often found in tropical forest understories.

Ecology

Urticaceae species play important roles in their ecosystems. They can be pioneer species in disturbed areas and provide food and habitat for various insects and animals. The stinging hairs of some species serve as a defense mechanism against herbivores.

Uses

Many species in the Urticaceae family have economic importance. Urtica dioica is used in traditional medicine and as a food source. Boehmeria nivea is cultivated for its strong fiber, and several Pilea species are popular as ornamental plants.

Related Pages

• Rosales
• Urtica
• Pilea
• Boehmeria