Question: What island that Zanthoxylum hawaiiense can be found on is nicknamed“The Friendly Isle”? 
Sentence (from "Molokai"): It is 38 by 10 miles (61 by 16 km) in size at its extreme length and width with a usable land area of 260 sqmi , making it the fifth-largest of the main Hawaiian Islands and the 27th largest island in the United States.
Relevant evidence: No