Are reeds made from sugar can, bamboo, or what? 
Arundo donax aka Spanish Cane, although I have heard people refer to Californian cane, but I don’t know if the latter is accurate.
Surgar cane can be used but it sounds too sweet (joke) 
California cane is Arundo Donax… growing in California. Spanish Cane is Arundo Donax… growing in … ummm, Spain. 
Arundo Donax is basically giant grass that grows from 20 to 30 feet tall.