''Bupleurum tenuissimum'', the slender hare's-ear, is a coastal plant of the family

Apiaceae Apiaceae or Umbelliferae is a family of mostly aromatic flowering plants named after the type genus '' Apium'' and commonly known as the celery, carrot or parsley family, or simply as umbellifers. It is the 16th-largest family of flowering plant ...

.''Bupleurum tenuissimum'' (Slender Hare`s-ear)
On-line Atlas of the British and Irish flora

References

tenuissimum Plants described in 1753 Taxa named by Carl Linnaeus {{Apiaceae-stub