False London-rocket - Sisymbrium loeselii


Similar to London Rocket, but hairier, especially below and with brighter yellow flowers, 4 to 6 mm, not overtopped by the young fruits.

Similar Species

other Sisymbrium

Identification difficulty
ID guidance

Seed-pods long and sticking out from stem, without beak, splitting into 2 valves with one row of seeds in each valve; lowest leaves lobed, upper stem-leaves divided but not pinnate; fruit pedicels nearly as wide as ripe fruit, petals longer than sepals or stamens. 

Recording advice

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


Waste and bare places, cultivated land.

When to see it

Flowers June to August.

Life History


UK Status

Occasional in the London area, scarce or rare elsewhere in Britain.

VC55 Status

Uncommon in the Leicestershire and Rutland area. The Ratby record of June 2015 is only the second modern record of this plant in our region, the first coming from Glenfield in 1998. It was not recorded in the 1979 Flora survey of Leicestershire.

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
False London-rocket
Species group:
Records on NatureSpot:
First record:
19/06/2015 (Nicholls, David)
Last record:
19/06/2015 (Nicholls, David)

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