.#.##...#.                                          ###.#.#.#.
###.#..##.                                          ..#######.
..###.#.#.                                          .#......##
.#..#####.                                          ##.....#.#
##.#....##                                          .#....####
.###...#.#                (equisetum)               ##...#....
#..#..####                                          .#..##....
#.##.#....                                          ##.#.#...#
##.###....                                          .#####..#.
.##..#...#         .-~^~-. the plant .-~^~-.        #....#.###
#.#.##..##                                          #...###..#
####.#.#.. the  equisetum  is  a  plant  much older #..#..#.#.
...#####.. than  ferns,  which  are  in  turn  much #.##.#####
..#....#.. older than most trees. it's light  green ##.##....#
.##...##.# to  yellow  in  color  and  is  slightly .##.#...##
#.#..#.###               transparent.               #.###..#.#
###.###...                                          ##..#.###.
..##..#... the plant  has a spine. each vertebra is .#.###..##
.#.#.##..# stacked upon the  next,  with  spokelike ###..#.#.#
#####.#.#. ribs  radiating outward.  even so,  it's ..#.######
....#####. very light,  being  hollow. it's roughly .###......
...#....#. the  height of  a foxes tail, and shares #..#......
..##...###            a similar plumage.            #.##......
.#.#..#..#                                          ##.#......
####.##.#. it  likes  partial  shade and  very damp .###......
...##.####                   areas                  #..#.....#
..#.##...#                                          #.##....##
.###.#..##                                          ##.#...#.#
#..###.#..                                          .###..####
#.#..###..         .-~^~-. in magic .-~^~-.         #..#.#....
###.#..#.#                                          #.####...#
..###.#### when  a colony  numbers  high enough, it ##...#..#.
.#..##...# slices  the  air  in  the  forest   into .#..##.##.
##.#.#..## separate planes,  a  few  centimeters in ##.#.##.#.
.#####.#.# height.  time  can  get   diffracted  in .####.####
#....####. these,  hitting   each  in  turn   in  a #...##...#
#...#...##      slightly different angle, and       #..#.#..#.
#..##..#..         eventually spread thin.          #.####.###
#.#.#.##..                                          ##...##...
######.#.#                                          .#..#.#..#
.....####.                                          ##.####.#.
....#...#.                                          .##...###.
...##..###                                          #.#..#..#.