Answer the following question given this paragraph: 

The stem of a horsetail is characterized by the presence of joints, or nodes: hence the name Arthrophyta, which means “jointed plant”. Leaves and branches come out as whorls from the evenly spaced rings. The needle-shaped leaves do not contribute greatly to photosynthesis, the majority of which takes place in the green stem (Figure 14.15).


Q: The stem of a horsetail is characterized by the presence of joints, or nodes: hence the name arthrophyta, which means this?


A:
jointed plant