In Spring of 2013, I noticed that one of my Noids started to develop an odd shape. It was "cresting".
May 3, 2013 - Top View and Side View
June 12. 2013 - Top View
Sept 21, 2013 - Side View
Sorry to say that for two months I didn't capture the stages in between Sept and Nov.
Nov 25, 2013 A bit of drying on lower part of the plant
Jan 24, 2014 - More drying out and decrease in size continued until I "retired" it.
