Some giant horsetails and Cordaitales reached nearly 100 feet .
有些巨大的木贼类和科达目植物高度达到一百英尺。
A similar structure that produces spores on club mosses , horsetails , and spike mosses .
球果结构在石松、木贼和穗状苔藓植物上产生孢子的类似的结构。
Horsetails