備註:芸香科的特徵的辨識:用有坑的小枝、腫起的葉柄、葉片(或小葉片)的形狀、葉片厚薄等來認它. 有實物當然要試多樣嘢啦.info from hkwildlife.net 芸香科 (~30種) 口訣:芸香木本複葉生, 黃柏花椒橘柚橙. 花被四五覆瓦列, 花葉果實腺點呈. 木本.葉,花,果常有透明油腺點. 葉常互生,多為複葉. 雄蕊8-10. 單身複葉,主要在citrus屬(檸檬, 西柚, 柚, 柑橘, 橙). 其它三椏苦(掌狀3出複葉), 飛龍掌血 (掌狀3出複葉), 九里香(複葉), , 花椒(複葉), 欓花椒(複葉), 兩面針. 山油柑(單身複葉) 三椏苦的花萼、花瓣和雄蕊均為4數, 密茱萸屬 Melicope, 透明油点甚多。萼片及花瓣各4片； FOC: Shrubs, trees, or sometimes herbs, sometimes scrambling or scandent, sometimes armed, with aromatic volatile oils[芳香揮發油] contained in glands[腺體] visible at surface of at least leaves, young branchlets, inflorescences, flower parts, fruit, or cotyledons in seed. Stipules absent [or stipular excrescences rarely present]. Leaves alternate, opposite [or whorled], simple (petiole neither apically swollen nor articulate with leaf blade), 1-foliolate (in individual specimens at least some 1-foliolate leaves with petiole apically swollen and/or articulate with leaf blade), or variously compound. Flowers bisexual or u...