Greater bird's-foot trefoil

Greater bird's-foot trefoil (Lotus uliginosus Schkuhr) is a perennial legume species within the Fabaceae family. It is a highly specialized forage crop, recognized primarily for its exceptional ability to thrive in wet, acidic, and poorly drained soils where most other forage legumes would fail due to waterlogging.

The native range of this plant encompasses Europe and parts of Western Asia. Due to its adaptability, it has been introduced to various regions globally, including temperate zones in North America and New Zealand. In these areas, it plays a critical role in managing high-moisture agricultural land and improving overall forage quality.

Botanically, the plant is characterized by its hollow stems that can reach heights of 60–90 cm and its distinct bright yellow flowers. A key feature of the species is the presence of rhizomes, which allow the plant to spread vegetatively and colonize unstable or saturated habitats, providing ground cover throughout the growing season.

Agronomic requirements are focused on soil moisture management. While it is tolerant to flooding, it performs best in soils with high organic matter content. For successful cultivation, seeding should be done in a well-prepared seedbed during spring or late summer. Weed control is essential during the establishment phase, as the seedlings are initially slow to grow compared to invasive weeds.

Economically, this crop is a staple in pasture systems for cattle and sheep, particularly in wetter regions. It provides high-quality grazing material with good protein levels. Additionally, because it forms a symbiotic relationship with nitrogen-fixing bacteria, it significantly contributes to soil fertility, making it an excellent candidate for sustainable land reclamation projects and ecological restoration.

• Excellent tolerance to waterlogged conditions.
• Well-adapted to acidic soil environments.
• Valuable source of protein for livestock.
• Rhizomatous growth habit for soil stabilization.
• Potential vulnerability to rust diseases in humid conditions.