medicinal plant echium vulgare (viper's bugloss and blueweed)

angiosperms anti bacterial biennial bloom blossom blue blueweed boraginaceae botanical bugloss common detail diuretic echium expectorant flora flower hairs healing herbal homeopathy honey infusion medicinal medicine nature nectar perennial phytotherapy plant pollen purple sedative stamen summer toxic viper vulgare wildflower wound x27