species of tree resistant to cold weather

strokes 12
strokes after radical 8
椆水 椆水 chou2 shui3
old name of an unidentified river in Henan Province, mentioned by 莊子|庄子

椆苕 椆苕 diao4 tiao2
species of tree (old)

木椆 木椆 mu4 zhou4
type of wood used to make punting poles for boats (old)