STICKY GROUNDSEL

STINKING GROUNDSEL

Senecio viscosus

Daisy & Dandelion Family [Asteraceae]  

Flowers:
month8jul month8july month8aug month8sep month8sept

Pappus: pappusZpossible (white, simple)
pappus8sep pappus8sept pappus8oct

status
statusZneophyte
 
flower
flower8yellow
 
morph
morph8actino
 
petals
petalsZMany
 
stem
stem8round
 
smell
smell8foetid
foetid
toxicity
toxicityZlowish
 

1st Aug 2008, Walkden High Level Stn, Mcr. Photo: © RWD
A rather straggly plant growing in waste places and cracks in under-used pavements.


12th June 2009, Jubilee Hut, Greenside Mines. Photo: © RWD
Has sticky glandular hairs giving it a greyish-green appearance.


12th June 2009, Jubilee Hut, Greenside Mines. Photo: © RWD
Has a rather foetid smell. Flowers bulging more than does Groundsel, and without the black marks at the tip of the sepals.


22nd Sept 2012, Wigan Athletic FC, Leeds & L/pool canal, Lancs. Photo: © RWD
Flowers singly at the top of somewhat wavy and branched stems. Flowers about to set seed start to bulge visibly at the bottom to accommodate the seeds (top right).


22nd Sept 2012, Wigan Athletic FC, Leeds & L/pool canal, Lancs. Photo: © RWD
Leaves are greyish green with short whitish hairs, and angularly lobed.


12th June 2009, Jubilee Hut, Greenside Mines. Photo: © RWD
Covered in shortish clammy sticky hairs. Few ray petals and not usually extending far.


12th June 2009, Jubilee Hut, Greenside Mines. Photo: © RWD
Flower yellow with many inner disc florets and only few ray florets which soon roll-up backwards.


22nd Sept 2012, Wigan Athletic FC, Leeds & L/pool canal, Lancs. Photo: © RWD
Only the very tips of the narrow bracts are dark-tipped. Bracts of one length only, un-like Groundsel.


22nd Sept 2012, Wigan Athletic FC, Leeds & L/pool canal, Lancs. Photo: © RWD
Hairs tipped with small sticky spheres.


12th June 2009, Jubilee Hut, Greenside Mines. Photo: © RWD
Stems may have lobes (short leaves).


12th June 2009, Jubilee Hut, Greenside Mines. Photo: © RWD
Leaves darker grey-green, with many short lobes.


12th June 2009, Jubilee Hut, Greenside Mines. Photo: © RWD
Seed clocks robust with long brown/blackish seed pods. Parachutes not spherical, but conical.


12th June 2009, Jubilee Hut, Greenside Mines. Photo: © RWD
A miniature and dimpled white spherical 'golf-ball' remains when the seeds have flown the nest.


22nd Sept 2012, Wigan Athletic FC, Leeds & L/pool canal, Lancs. Photo: © RWD
After rain the hairs of the parachute may congregate together, Note the black-tipped bracts have now opened up to allow the seeds to escape.


22nd Sept 2012, Wigan Athletic FC, Leeds & L/pool canal, Lancs. Photo: © RWD
A plant fully in fruit looks most untidy.


Easily confused with : other Groundsels, such as Hoary Groundsel (Senecio erucifolius).

Hybridises with :

  • Heath Groundsel (Senecio sylvaticus) to produce Senecio × viscidulus;
  • Oxford Ragwort (Senecio squalidus) to produce Senecio × baxteri.
It is not known whether any of the above photographs represents a hybrid.

Grows on waste ground and other bare places, often between stones or gaps in outdoor paving. A weed of disturbed grounds and gardens. The plant is both viscous sticky and foetid smelling.


  Senecio viscosus  ⇐ Global Aspect ⇒ Asteraceae  

Distribution
 family8Compositae family8Daisy family8Dandelion family8Asteraceae

 BSBI maps
genus8Senecio
Senecio
(Ragworts)

STICKY GROUNDSEL

STINKING GROUNDSEL

Senecio viscosus

Daisy & Dandelion Family [Asteraceae]  

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