| There are also lovely mosses, liverworts, milfoil duckweed and pondweed. |
| Floating plants like water lilies or duckweed block sunlight, preventing algae from thriving. |
| A thickening soup of duckweed and pondweed stills the surface of the marsh. |
| I went to the fountain and saw varieties of water plants like water lilies and duckweed. |
| Floaters, such as pondweeds and common duckweed, drift freely on the surface and quickly cover the surface of the plant zone. |
| Barely visible above a mat of wind-blown duckweed were the eyes and nostrils of a four-foot alligator. |
