中提琴

Viola adunca是一种紫罗兰，其俗称钩尾紫罗兰，沙紫罗兰和西部狗紫罗兰。 V. adunca有几种变种。 a white-petaled form has been noted in Yosemite National Park.优胜美地国家公园曾注意到白色花瓣形式。