Noun
An
East Asian
cultivar
or
subspecies
of
(,
syn
. )
bearing
a
large
,
white
,
carrot-shaped
taproot
consumed
throughout
East
and
South Asia
but
grown
in
North America
primarily
as
a
fallow crop
for
its
fast-growing
leaves
(
used
as
animal
fodder
)
and
as
a
soil
ripper
.