Gillyweed

Climate:

• Needs a lot of water, but very little sunlight
• Moderately alkaline soil  (7.9-8.4 pH)
• in the Mediterranean Sea

Appearance:

• Grey-Green, Slimy Bushel

Properties:

• Of the Giliac weed family
• fresh, nourishing feeling when eaten

Uses:

• Consumption makes the eater grow gills and have webbed fingers and toes
• Used in Gillywater - a popular drink with Gillyweed, cucumber, and sometimes the addition of the spicy Gillyflower

Controversy:

• There is some debate on how long the effects of Gillyweed last in salt water, though most experts agree it lasts for about an hour in fresh water. 
• Some experts say effects can last up to three hours in salt water while others claim there is no difference in Gillyweed's reaction to salt and fresh water.