Horseshoe Vetch
Hippocrepis comosa
Horseshoe vetch is a perennial herbaceous plant primarily found on calcareous dry grasslands. It is characterized by its yellow flower heads and the eponymous horseshoe-shaped segmented legumes. The plant often forms dense mats and serves as a crucial food source for specialized insect species.
Details
Habitat function
Important nectar plant and larval habitat for specialized blue butterflies.
Nutrient uptake
Low soil nitrogen requirement due to symbiosis with rhizobia.
Food source for
Adonis Blue (Polyommatus bellargus), Chalkhill Blue (Polyommatus coridon).
Human use
Occasionally used in seed mixes for ecological compensation areas or rock gardens.
Ecology
Ecological role
Nitrogen fixer through symbiosis with root nodule bacteria; primary producer in nutrient-poor grassland ecosystems.
Natural predators
Various caterpillar species, grazing animals such as sheep and goats.
Competitor species
Scrub species in the absence of management, tall grasses under eutrophication.
Ecosystem service
Soil improvement through nitrogen enrichment, support of biodiversity (pollinator habitat).
Threats
Eutrophication (fertilization), abandonment of land use (scrub encroachment), conversion of dry grasslands into arable land.
Scientific profile
Profile
Reproduction
Generative via seeds; vegetative via creeping, branched rhizomes and stolons.
Protection & threats
Main threats
Eutrophication through nitrogen deposition, abandonment of land use (scrub encroachment/succession), conversion of dry grasslands into arable land or intensive grassland.