yellow barleria lupulina lindl flower on white background

acanthaceae acetyl aroma aromatherapy aromatic art asia barleria barlerin bloom blooming blossom botany branch clip concepts cure dermatitis drawn flora floral flower foliage glycoside herbal herbs illustration iridiod leaf lindl lupulina lush methyl natural nature petal pharmacopoeia plant poisonous scented shanzhiside spring stem thai thailand tree tropical vector yellow