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