Cynoglossum officinale

Cynoglossum officinale, commonly known as hound's-tongue, is a species of flowering plant in the Boraginaceae family. It is native to Europe and Asia but has become a widespread invasive species in other parts of the world.

Description

Cynoglossum officinale is a biennial or short-lived perennial plant that typically grows to a height of 20–80 cm. The leaves are lanceolate to elliptical in shape and are covered in small, stiff hairs. The flowers are reddish-purple and are borne in clusters at the ends of the stems. The fruit is a nutlet, covered in small hooked prickles which aid in seed dispersal.

Distribution and habitat

Cynoglossum officinale is native to Europe and Asia, but has been introduced to North America, Australia, and New Zealand, where it has become a problematic invasive species. It is typically found in disturbed habitats, including roadsides, pastures, and waste areas.

Uses

In traditional medicine, Cynoglossum officinale has been used to treat a variety of ailments, including skin conditions and respiratory problems. However, the plant contains pyrrolizidine alkaloids, which can be toxic if ingested in large amounts.

Control

Control of Cynoglossum officinale typically involves a combination of mechanical and chemical methods. Hand-pulling can be effective for small infestations, while herbicides may be used for larger populations.

See also

• List of invasive species
• Boraginaceae

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