Waterweeds are plants found in L'Borean.
Red Waterweeds will drop themselves when mined with Silk Touch. If mined without it, they will drop Floracle Seeds instead. Shears do not work on Red Waterweeds.
The other variants will drop themselves when mined with shears or Silk Touch.
Waterweeds have four variants. Red Waterweeds are far more rare than the other three.