Stone Parsley - Sison amomum


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


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

When to see it

Flowers July to September.

Life History


UK Status

Local from Yorkshire southwards including coastal north Wales.

VC55 Status

Now near 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 was on the 2011 VC55 Rare Plant Register (Jeeves, 2011) but does not meet the criteria for the current RPR (Hall and Woodward, 2022)


Leicestershire & Rutland Map


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

UK Map

Species profile

Common names
Stone Parsley
Species group:
Records on NatureSpot:
First record:
01/01/2000 (Unknown)
Last record:
16/09/2023 (Rodgers, John)

Total records by month

% of records within its species group

10km squares with records

The latest images and records displayed below include those awaiting verification checks so we cannot guarantee that every identification is correct. Once accepted, the record displays a green tick.

In the Latest Records section, click on the header to sort A-Z, and again to sort Z-A. Use the header boxes to filter the list.

Latest images

Latest records