n. 山楂

[ noun ]
a spring-flowering shrub or small tree of the genus Crataegus
<noun.plant>

Hawthorn \Haw"thorn`\ (h[add]"th[^o]rn`), n. [AS.
haga[thorn]orn, h[ae]g[thorn]orn. See {Haw} a hedge, and
{Thorn}.] (Bot.)
A thorny shrub or tree (the {Crat[ae]gus oxyacantha}), having
deeply lobed, shining leaves, small, roselike, fragrant
flowers, and a fruit called {haw}. It is much used in Europe
for hedges, and for standards in gardens. The American
hawthorn is {Crat[ae]gus cordata}, which has the leaves but
little lobed.

Gives not the hawthorn bush a sweeter shade
To shepherds? --Shak.