Great Duckweed
Spirodela polyrhiza
Size: to 0.1"
Habitat: floating free at surface
Notes: Among the smallest seed plants; important food for many waterfowl.
- Type:
- shipwreck, tugboat, USA
- Type:
- Fraser Shipyards, Superior, WI as Frances A. Small
- Specs:
- ( 113 x 31 ft, 850 tons ) 8 crew
- Sunk:
- Sunday March 3, 1985
collision with one of its own barges - no casualties - Depth:
- 230 ft
More: John A. Downs ...