close-up of white flower of citrus trifoliata or japanese bitter orange (poncirus trifoliata) with prickly branches

lemon poncirus trifoliate trifoliata white blossom chinese bitter orange spring citrus japanese plant nature tree green natural botany background blooming hardy yellow thorns shrub prickle rutaceae leaf foliage garden farm agriculture flora flowers family public park japan wallpaper ripe fresh edible branch food healthy botanical