白花菜(Cleome gynandra)又名白花野菜、羊角菜、蜘蛛花、凤蝶草,是白花菜科的一年生草本,株高1米,全株具粘毛,有浓烈臭味。掌状复叶,小叶5枚。花白色,萼片和花瓣各4枚。蒴果长角状,种子小,黑褐色。花期5—8月,果熟期6—9月。野生或庭园栽培,南北各省都有分布。 Cleome gynandra, also known as white wild herbs, calamus, spider flowers, butterflies grass, is an annual herb of the family Bromeaceae, plant height of 1 m, the whole body with sticky hair, with a strong smell. Palmate compound leaflets 5. Flowers white, sepals and petals each 4. Angular capsule, seeds small, dark brown. Flowering from May to August, fruit maturity from June to September. Wild or garden cultivation, North and South provinces have distribution.