is a deciduous shrub found on forest edges in fields and mountains,
growing to 2-4m in height, with glandular hairs on young blanches.
Leaves are opposite; blades are 2-7cm long, 7-20mm wide, long
oblong, with entire margins, rounded tips, cuneate bases, thin
texture, not glossy, upper surfaces with no hairs, and lower ones
with some or no hairs. New branch tips emerge 2-4cm long racemes and
set small white flowers; corollas are 7-9mm long, tubular
funnel-shaped with tips cleft in four; the lobes are short, about
3mm long. Bloom time: May-June.