茎圆柱形略有棱光滑无刺叶对生皱缩完整叶片椭圆形至矩圆形长3-10cm先端尖基部楔表全缘略呈波状两面具毛蓝花草吐红草地狗胆青藤刺牛膝白牛膝假红蓝洋杜鹃植物可入药
比如，“纽约的理查德进攻失败”，就是一种按正确顺序回忆起可见光颜色(红、橙、黄、绿、蓝、靛、紫)的记忆方法。
"Richard of York Gave Battle in Vain," for example, is a mnemonic for recalling the colors of the visible spectrum in the right order (red, orange, yellow, green, blue, indigo, and violet).
红，橙，黄，绿，蓝，靛，紫。
彩虹的颜色嘛当然是红橙黄绿蓝紫roygbv我把靛省掉了，靛色逗我呢？
The rainbow, as we know it, is Red, Organge, Yellow, Green, Blue, Violet. ROYGBV, I'm ignoring Indigo because, let's be honest, Indigo?
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