Stone Parsley - Sison amomum

    Description

    An erect hairless plant with a nauseating smell when crushed. Stems solid, finely ridged. Leaves pinnate, with 5 to 9 pairs of oblong, toothed leaflets, often lobed. Flowers white, small (1 to 2 mm), in umbels with 3 to 6 uneven rays. Bracts linear, short. Fruit almost globose.

    Similar Species

    Other smaller white umbellifers with pinnate (but not ferny) leaves

    Identification difficulty
    ID guidance

    Glabrous, with solid stem and 1-2 pinnate leaves; bracts and bracteoles; fruits glabrous, oval and ridged

    Recording advice

    A series of photos of the plant in its habitat, with details of flowers (a side-on view of the umbel) fruits and basal leaves

    Habitat

    Grassy banks, rough grassland, roadside verges and disturbed ground, generally on heavy soils.

    When to see it

    Flowers July to September.

    Life History

    Biennial.

    UK Status

    Local from Yorkshire southwards including coastal north Wales.

    VC55 Status

    Now scarce in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 25 of the 617 tetrads.

    In the current Checklist (Jeeves, 2011) it is listed as Native; scarce.

    It is on the Rare Plant Register

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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