.#..##..##                                          #..##....#
##.#.#.#..                                          #.#.#...##
.#######..                                          #####..#..
#......#..                                          ....#.##..
#.....##.#                                          ...###.#.#
#....#.##.               (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.          #.###.#.##
.#..#.#.#.                                          ##..####.#
##.######.                                          .#.#...###
.##.....##                                          ####..#...
#.#....#..                                          ...#.##...
###...##.#                                          ..###.#..#