Sheep's sorrel
Rumex acetosella
Sheep's sorrel is a perennial herbaceous plant reaching heights between 10 and 40 cm. It is characterized by arrow-shaped or hastate leaves and reddish, panicle-like inflorescences. The plant is dioecious and spreads extensively through creeping rhizomes. It is considered a characteristic species for acidic, nutrient-poor sandy soils.
Details
Habitat function
Serves as a structural element in sparse vegetation and as a specialized food source.
Nutrient uptake
Efficient nutrient uptake in acidic, extremely nutrient-poor substrates.
Food source for
Small Copper (Lycaena phlaeas), Blood-vein moth (Timandra comae).
Human use
Edible wild herb (in moderation), used in folk medicine (e.g., Essiac tea), dye plant for yellow tones.
Ecology
Ecological role
Pioneer species on sandy, lime-free soils; essential host plant for specialized insect species.
Natural predators
Butterfly larvae (e.g., Small Copper) and specialized leaf beetles.
Competitor species
Other pioneer grasses and herbs of nutrient-poor sandy sites such as grey hair-grass (Corynephorus canescens).
Ecosystem service
Soil stabilization through extensive rhizomes, providing food for pollinators and insect larvae.
Threats
Eutrophication through nitrogen deposition from air and agriculture; loss of nutrient-poor open land habitats.
Scientific profile
Profile
Reproduction
Both generative via seeds (high seed production) and effectively vegetative via root sprouts.
Protection & threats
Main threats
Eutrophication through atmospheric nitrogen deposition, succession and scrub encroachment following land abandonment, and intensive agricultural use (fertilization).