hand drawn botanical sketch. purple and pink echinacea close up. green background. watercolor painting. flower and stem. summer

angustifolia antibacterial background bloom blossom botanical botany closeup coneflower daisy design drawn echinacea ecology fabric field floral flower forest garden green hand health herbal homeopathic immunity influenza laevigata medicinal medicine nature orange painting pallida park pharmacy pink postcard poster print purple sketch sore spring stem summer tennesseensis textile throat violet wallpaper watercolor wedding