Last seen in:
- Universal - May 25 2021
- New York Times - Jul 24 2020
- Wall Street Journal - Mar 7 2018 - Course Additions
- Newsday.com - Mar 18 2016
- Premier Sunday - King Feature Syndicate - Jul 14 2013
- Family Time - Feb 7 2011
- Family Time - May 10 2010
- USA Today - Sep 19 2007
- USA Today - Jun 7 2006
- Family Time - Jan 24 2005
Related Clues:
- Oxygen releaser
- Unwanted plant in a pool
- Popular office plant
- Agar source
- Unwanted aquarium organism
- Some plankton
- Non-flowering office staple
- Boston is one variety
- Shade-loving plant
- Spore maker
- Bit of green in a floral display
- Pteridologist's specimen
- Chlorophyll plant
- Fish food
- Common office plant