Intermediate Evening-primrose - Oenothera glazioviana x biennis = O. x fallax


    "Intermediate Evening-primrose is a stable derivative of Large-flowered Evening-primrose, O. glazioviana (female) and Common Evening-primrose, O. biennis (male). It is constant in appearance and can occur in absence of parents. Back-crosses can occur."(Stace 1995)

    Similar Species

    The Evening-primrose group is a difficult one, which is further complicated by hybridization. Where possible a specimen should be checked by an expert to confirm identification.

    Identification difficulty
    Recording advice

    The County Recorder has asked for a specimen of this plant to be retained for verification


    Prefers open, well-drained soil, but can grow on heavier, part-shaded ground.

    When to see it

    Flowers June to September.

    Life History


    UK Status

    Widespread in England and Wales.

    VC55 Status

    Status in Leicestershire and Rutland not known. In the 1979 Flora survey of Leicestershire it was not recorded.

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    Leicestershire & Rutland Map

    MAP KEY:

    Yellow squares = NBN records (all known data)
    Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

    UK Map