ˈ ̷ ̷ˌ ̷ ̷ noun
Etymology: Middle English white thorn, from white + thorn
1.
a. : a hawthorn ( Crataegus oxycantha )
b. : scarlet haw
2. : any of several acacias that have peeling bark which gives the trunk a whitish appearance
3. : a whitish-barked shrub ( Ceanothus incana ) of the coastal mountains of the western United States that has often spinose branchlets, leaves whitish beneath, and small white flowers in panicles