棍子植物中的麻黄科，仅有一个麻黄属，总共约40种，中国有12种及4变种。种数虽少，可分类上并不容易。尤其因为它们的植株形态相似，常常认不准确。三个县混淆的属麻黄、木贼、木麻黄三个属（种）植物分别属于探子植物麻黄科、获类植物木贼科、被子植物木麻黄科。可是它们营养 Ephedra in the stick plant, only one ephedra, a total of about 40 species, China has 12 species and 4 varieties. Although the number of species can be classified is not easy. Especially because their plants are similar in shape, they are often not accurate. The three counties are ephedra, Equisetum, Casuarina three genera (species) plants belong to the spire plant Ephedra, respectively, by the plant species Equiseto, angiosperm Casuarina Branch. But they are nutritious