Narrow-leaved Trifolium (Lathyrus angustifolius)

Classification and Description

The Narrow-leaved Trifolium, also known as Devil's Bitter Vetch or Devil's Vetch, is a plant species belonging to the genus Lathyrus of the Fabaceae family. It is a legume that has the ability to fix atmospheric nitrogen through symbiotic bacteria.

Habitat and Distribution

The native region of this plant is the Levant, Egypt, and most areas of the Mediterranean basin. It has been introduced as an invasive species in many European regions.

Botanical Description

### Vegetative Characteristics

* The Narrow-leaved Trifolium is a one- or two-year-old herbaceous plant that reaches heights of 40 to 80 centimeters.
* The upright stem is round, slightly hairy, and light green in color with rich foliage.
* The leaves are arranged alternately, with a hairy underside and feathered five to seven times hand-shaped leaflets. The leaflets are narrow, blunt, and measure 2 to 4 centimeters long by 2 to 5 millimeters wide.

### Generative Characteristics

* The flowering period runs from May to August.
* The flowers are in terminal, grape-like inflorescences with relatively short flower stalks.
* The supporting blades are narrow and blunt.

Taxonomy and Naming

The species was named by Carolus Linnaeus. It is also known as Lathyrus angustifolius, which is the botanical name for the Narrow-leaved Trifolium.

Distribution in Europe and Beyond

This plant has been introduced to many European regions, including:
* Albania
* Armenia
* Austria
* Azerbaijan
* Bosnia and Herzegovina
* Bulgaria
* Czech Republic
* Georgia
* Germany
* Greece
* Hungary
* Italy
* Montenegro
* North Africa
* Poland
* Portugal
* Romania
* Russia
* Slovakia
* Slovenia
* Spain
* Syria
* Turkey
* United Kingdom

Note: The name "Narrow-leaved Trifolium" is used to avoid confusion with the similar-sounding "Lupinus angustifolius", which refers to a different plant species, the narrow-leafed lupine.