Blindweed

The RuneScape Wiki also has an article on: rsw:Blindweed

Blindweed
Released							31 October 2005 (Update)
Members							Yes
Quest item							Rum Deal
Properties
Tradeable							No
Equipable							No
Stackable							No
Destroy							Drop
Examine							An inedible, foul smelling herb.
Values
Value							1 coin
High alch							0 coins
Low alch							0 coins
Weight							0.007 kg
Advanced data
Item ID							6711

Blindweed is a quest item grown by the player during the Rum Deal quest. It is grown by planting a Blindweed seed in the farming patch on Braindeath Island and is one of the ingredients of the unsanitary swill that the player must make during the quest.