Giant Butterbur - Petasites japonicus

    Description

    Petasites japonicus is a substantial plant, producing huge suborbicular leaves to 90cm across, reaching 150cm in height, in summer. Flowers are cream to white, borne on stout erect stems to 30cm.

    Identification difficulty
    Recording advice

    Unless identified by a recognised expert, a photo is required. If the photo doesn't show the key ID features then in the comments box describe the size and identifying characters you have observed.

    Habitat

    Prefers damp conditions.

    When to see it

    Flowers in February and March.

    Life History

    Perennial rhizomatous plant.

    UK Status

    Occasional but quite widespread in Britain.

    VC55 Status

    Rarely recorded in Leicestershire and Rutland.

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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