Groundsel - Senecio vulgaris

Alternative names
Common Groundsel
Description

Low to short plant, the stem is often purplish. The leaves are bright shiny green pinnately lobed. The upper unstalked and slightly clasping. Flowerheads yellow, small and rayless 4 to 5 mm in lax branched clusters. Flower bracts often black tipped, the outer very short. Pappus white.

Identification difficulty
Habitat

A common weed of gardens, disturbed soil abd waste places.

When to see it

Flowers throughout the year.

Life History

Annual.

UK Status

Common throughout Britain.

VC55 Status

Very common in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 603 of the 617 tetrads.

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020

UK Map

Species profile

Common names
Groundsel
Species group:
flowering plant
Kingdom:
Plantae
Order:
Asterales
Family:
Asteraceae
Records on NatureSpot:
574
First record:
05/01/2008 (Calow, Graham)
Last record:
15/04/2026 (Pugh, Dylan)

Total records by month

% of records within its species group

10km squares with records

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Photo of the association

Puccinia lagenophorae

Puccinia lagenophorae is a gall-causing rust affecting stems and leaves of Common Groundsel, and occasionally Oxford Ragwort (Senecio squalidus) and Common Ragwort (Jacobaea vulgaris).  It causes swelling and distortion of stems and leaves, with bright orange aecia.  There are no uredinia or spermogonia, and the blackish-brown telia are rarely seen.