Equisetum arvense (Common Horsetail, Field Horsetail, Horsetail, Scouring rush, Western horsetail)
Horsetail: Pictures, Flowers, Leaves & Identification
Horsetails
Scouring Rush Horsetails Grew Back Weakly
Horsetails
Marsh Horsetail Guide - New York Natural Heritage Program
Horsetail Reed San Diego Zoo Animals & Plants
Equisetum pratense (Meadow Horsetail): Minnesota Wildflowers
Exquisite Equisetum A Horsetail Tale — Ravensong Seeds & Herbals
Field Pennycress: Pictures, Flowers, Leaves and Identification