Native to a wide area of Europe, from the
British Isles to the south of Portugal across to Poland and Ukraine. It is an
evergreen shrub that grows around 2-3 metres tall. Its young stems are green,
producing shoots and leaves that develop into spines, 1-3cm long. It produces
small bright yellow flowers, around 2cm long which are produced throughout the
year but mainly in the spring. It produces fruit in pods, legumes, which are 2cm
long, dark purplish brown containing 2-3 small hard seeds which are ejected
when the pod splits in warm weather.
It is considered an invasive species in many
countries, like Chile and New Zealand where it often causes serious problems as
none of its natural predators were present as the plant was introduced to these
countries from the British Isles. The plant is also known to easily catch fire
and can be a fire hazard, fire may appear to destroy the plant but it can grow
back from the roots.
The specimen I have photographed is in a park
cark-park. Its attractive bright colours are a nice feature however its spiny
appearance, I think, makes it slightly less attractive than other evergreen
shrubs.
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