Apium nodiflorum
(L.) Lag.
Familia
APIACEAE
Berra, Berraza,
Berrera
Apium nodiflorum, commonly known as ‘berraza’, ‘berrera’
or ‘bastard celery’, is a perennial, aquatic or semi-aquatic herbaceous
plant belonging to the Apiaceae family. It is native to Western Europe
and the Mediterranean region, where it grows wild in very damp
environments.
It grows on the banks of rivers, streams, irrigation
channels, springs and marshy areas with clean, fresh-water currents.
It has hollow, grooved stems up to 100 cm long, which tend to lie flat
and take root at the lower nodes. Its leaves are pinnate, composed of
paired leaflets with distinctly serrated margins.
Its flowers are
small and white, grouped in characteristic umbels that emerge opposite
the leaves with virtually no peduncle (hence the term ‘nodiflorum’,
meaning ‘flowers at the node’).
It has traditionally been used as a
wild vegetable (eaten raw in salads or cooked) and in folk medicine for
its diuretic properties.
However, extreme caution is required: it
shares its habitat with, and is very easily confused with, common
watercress, but above all with highly toxic plants from the same family
(such as lesser hemlock or Berula erecta and oenanthus). Foraging for it
for consumption is not recommended without advanced botanical knowledge.
La Palma, La Gomera, Tenerife, Gran Canaria