Narcissus pseudonarcissus (commonly known as wild daffodil or Lent lily) is a perennial flowering plant.[1][2][3][4][5][6]
This species has pale yellow flowers, with a darker central trumpet. The long, narrow leaves are slightly greyish green in colour and rise from the base of the stem. The plant grows from a bulb. The flowers produce seeds, which when germinated, take five to seven years to produce a flowering plant. (Sexual [seed] reproduction mixes the traits of both parent flowers, so if garden hybrid cultivarsare planted close to wild populations of Narcissus pseudonarcissus, there is a danger that the new seedlings, having hybrid vigour, could out-compete the wild plants.)[7]
(From Wikipedia, March 2015)