Viper's Bugloss
Echium vulgare
Viper's Bugloss is a biennial, bristly-haired herbaceous plant belonging to the Boraginaceae family. In its first year, it forms a basal rosette of leaves, while in the second year, it develops a sturdy flowering stalk reaching up to 100 cm in height. The funnel-shaped flowers transition from pink to a vibrant blue as they mature. As a pioneer species, it thrives in sunny locations such as roadsides, quarries, and dry grasslands.
Details
Habitat function
Foraging habitat for specialized pollinators; providing structure in sparse dry grasslands.
Nutrient uptake
Low nitrogen uptake, adapted to nutrient-poor conditions.
Food source for
Wild bees (esp. Osmia adunca), bumblebees, butterflies, and hoverflies.
Human use
Occasionally used as an ornamental plant in wildlife gardens; historically used as a medicinal plant against snake bites and as a diuretic.
Ecology
Ecological role
Vital nectar plant for numerous insects; specialized food source for the Viper's Bugloss Mason Bee (Osmia adunca) and various lepidopteran larvae.
Natural predators
Caterpillars of specialized moth species such as the Viper's Bugloss owlet moth.
Competitor species
Competitive grasses under increasing eutrophication of the habitat.
Ecosystem service
Support of biodiversity by providing high-quality nectar and pollen; soil stabilization on dry slopes.
Threats
Loss of ruderal areas and dry grasslands due to construction; eutrophication of habitats; overly frequent mowing of roadsides.
Scientific profile
Profile
Reproduction
Exclusively generative via seeds; a single plant can produce up to 10,000 seeds.
Protection & threats
Main threats
Loss of open soil patches due to succession and scrub encroachment; agricultural intensification; excessive mowing before seed maturation.