食茱萸，（学名：Zanthoxylum ailanthoides），别名红刺楤、红刺葱、大叶刺葱、仁刺葱、刺江某、越椒、毛越椒、鸟不踏等，中国植物志则称以椿叶花椒。

食茱萸为芸香科落叶乔木，具有特殊香味。食茱萸的嫩枝密布锐利的尖刺，老干也长满了瘤状尖刺，连鸟儿也不敢在上面栖息，因此有“鸟不踏”之称。叶片为羽状复叶互生，长30－80厘米，小叶片为披针形，长６－12厘米，边缘有锯齿，小叶密布透明油腺，有芳香味，幼叶常呈红色，故名红刺楤。很多凤蝶幼虫也喜爱吃食茱萸的叶子，为诱蝶植物。食茱萸春季开花，圆锥花序，花小，黄白色。食茱萸是重要的蜜源植物，开花时常吸引许多蝴蝶、蜂类、甲虫等昆虫来前来吸食花蜜，形成“蝴蝶树”的奇特景观。果实于秋季成熟，为蓇葖果，球形，直径0.5-0.6厘米。

Zanthoxylum ailanthoides (Chinese:椿叶花椒; pinyin:chun ye hua jiao, lit. "Ailanthus-leaved pepper", Chinese:越椒; pinyin:yue-jiao; Wade–Giles:yüeh-chiao, lit. "Yue pepper", 食茱萸 shi zhu yu, lit. "edible shān zhū yú"; Japanese:カラスザンショウ, からすのさんしょう karasu-zanshō, karasu-no-sanshō, lit. "crow prickly ash") is an Asiatic plant of the prickly-ash genus Zanthoxylum, natively occurring in forest-covered parts of southeastern China, ******, Southeast Asia, and Japan from Honshu southward. The piquant fruit serves as a local "substitute for the ordinary red-pepper" in China. In ******, the young leaves are used in cuisines.