closeup of the flowers of perforate st john`s-wort

antibiotic antidepressant background blur bokeh botanical botany bright closeup cluster cyp1a2 cyp3a4 cytochrome depression enzymes extract flower flowers focus green growth herb herbalism herbalist hyperforin hypericum ingredient invasive johnswort macro medicinal medicine nature oil p450 perforate perforatum petal petals phytochemical plant poison poisonous raindrops remedie selective stamen tea weed wildflower yellow