Question: The smallest of Hawaii's eight main volcanic islands which is home to the rare flowering plant, Euphorbia skottsvergii, get's how many cm of rainfall on average annually?
Sentence (from "Euphorbia skottsbergii"): "Chamaesyce skottsbergii") is a rare species of flowering plant in the euphorb family known by the common names coastal sandmat and Skottsberg's broomspurge.
Relevant evidence: No