详细解释:n. 矢车菊, 蓝色扁平帽, 苏格兰人
英语解释：
名词 bluebonnet:
low-growing annual herb of southwestern United States (Texas) having silky foliage and blue flowers; a leading cause of livestock poisoning in the southwestern United States同义词：buffalo clover, Texas bluebonnet, Lupinus subcarnosus