1) Crataegus laevigata 2) Crataegus oxycantha 3) English hawthorn 4) Hawthorn 
[Blacksburg, Virginia] Whitethorn is a historic home located at Blacksburg, Montgomery County, Virginia. It was built about 1855, and is a two-story, `L`-shaped, five bay by three bay, brick dwelling with a shallow hipped roof in the Italian Villa style. It has Greek Revival style exterior and interior decorative elements. It features a wid...
• (n.) The hawthorn.
White'thorn` noun (Botany) The hawthorn. 
[n] - thorny Eurasian shrub of small tree having dense clusters of white to scarlet flowers followed by deep red berries
English hawthorn 1 may noun thorny Eurasian shrub of small tree having dense clusters of white to scarlet flowers followed by deep red berries; established as an escape in eastern North America