horsetail horsetail /ˈhɔrˌsteɪl/

noun

1. Perennial rushlike flowerless herbs with jointed hollow stems and narrow toothlike leaves that spread by creeping rhizomes; tend to become weedy; common in Northern Hemisphere; some in Africa and South America  ( horsetail )
   perennial rushlike flowerless herbs with jointed hollow stems and narrow toothlike leaves that spread by creeping rhizomes; tend to become weedy; common in Northern Hemisphere; some in Africa and South America
    The marshland was populated with horsetail plants, standing tall and green.
   The marshland was populated with horsetail plants, standing tall and green.