white camellia flowers on tree

acid aluminum angiosperms asia background bark beautiful beauty biology bloom blooming blooms blossom blossoms botanic botany caffeine calcium camelia camellia catechins chemistry china closeup countryside cultivar evergreen fleshy flora floral flower flowers fluoride foliage garden gardening green grow growth hiking hong hongkong hybrid isolated kong kowloon leaf leaves natural nature oxalate park parks plant plants pollen rural sasangua seeds shrub spring theaceae tissue tree trees white wild wildlife wood