categoryZClimbers Climbers List 

HEDGE BINDWEED

Calystegia sepium

Bindweed Family [Convolvulaceae]

month8jun month8june month8jul month8july month8aug month8sep month8sept

category
category8Climbers
status
statusZnative
flower
flower8bicolour
 
flower
flower8pink
 
flower
flower8white
 
inner
inner8cream
 
morph
morph8actino
 
petals
petalsZ5 petalsZ1
(1)
type
typeZtrumpet
 
type
typeZfused
 
stem
stem8round
 
toxicity
toxicityZmedium
 

Calystegia sepia ssp. sepia

9th Aug 2014, dunes, Hightown, Sefton Coast. Photo: © RWD
Stems to 2m or longer, scrambling by twining about other plants.


9th Aug 2014, dunes, Hightown, Sefton Coast. Photo: © RWD
Flowers 30-50mm (55mm) across, usually white, or pink with white stripes (f. colorata) which is especially preponderant in Ireland. (ssp. roseata has a wider corolla, 40-55mm across and is always pink with white stripes). Sepals isosceles triangular shape.


9th Aug 2014, dunes, Hightown, Sefton Coast. Photo: © RWD
Even twining around its own flowers. This one twining clockwise.


9th Aug 2014, dunes, Hightown, Sefton Coast. Photo: © RWD
A small stem-leaf half obscuring the bracteoles cupping the sepals. Petals may or may not be out-rolled.


9th Aug 2014, dunes, Hightown, Sefton Coast. Photo: © RWD
Stamens 15-25mm long in ssp. sepium (up to 2mm longer in ssp. roseata). Two as yet un-opened flowers peek our top left. There are 5 fused petals, fused and folded longitudinally along the white strip.


9th Aug 2014, dunes, Hightown, Sefton Coast. Photo: © RWD
Withering.


9th Aug 2014, dunes, Hightown, Sefton Coast. Photo: © RWD
Two loosely-enveloping bracteoles partially hide the five paler and shorter sepals within. The bracteoles are often purple tinged (and here red-edged), strongly keeled (a raised ridge half-way around like a boat keel), either not or only slightly over-lapping each other and only slightly pouched (pronouncedly pouched in Large Bindweed)


9th Aug 2014, dunes, Hightown, Sefton Coast. Photo: © RWD
Leaves triangular and saggitate (as are all Calystegia species except Sea Bindweed where the leaves are kidney shaped).


9th Aug 2014, dunes, Hightown, Sefton Coast. Photo: © RWD
Leaves have a sharp notch where they join their stems.


Calystegia sepia ssp. roseata

12th July 2014, Wigg Island, Runcorn, Cheshire. Photo: © RWD


12th July 2014, Wigg Island, Runcorn, Cheshire. Photo: © RWD


12th July 2014, Wigg Island, Runcorn, Cheshire. Photo: © RWD


12th July 2014, Wigg Island, Runcorn, Cheshire. Photo: © RWD


12th July 2014, Wigg Island, Runcorn, Cheshire. Photo: © RWD


12th July 2014, Wigg Island, Runcorn, Cheshire. Photo: © RWD


12th July 2014, Wigg Island, Runcorn, Cheshire. Photo: © RWD


12th July 2014, Wigg Island, Runcorn, Cheshire. Photo: © RWD


12th July 2014, Wigg Island, Runcorn, Cheshire. Photo: © RWD


Easily confused with : other Bindweeds

Hybridizes with :

  • Large Bindweed (Calystegia silvatica) to produce Calystegia × lucana which is intermediate between the parents and is highly fertile. Corolla 4 - 6.5cm, either white or very pale pink and stamens 20-25mm long. It is scattered over the British Isles but frequent in parts of southern England especially in Greater London
  • Hairy Bindweed (Calystegia pulchra) to produce Calystegia × scanica which is intermediate between the parents but only partially fertile. White to pale pink corolla 4.5 - 6.5cm, and with slightly longer stamens 22 - 28mm long. It is scattered in the Channel Islands and central and southern Britain.

In addition, there are two sub-species of Hedge Bindweed:

  • Calystegia sepium ssp. roseata which has pink flowers with 5 white stripes, can have a slightly larger corolla (4 - 5.5cm); stamens 17-25mm long, which is found throughout the British Isles.
  • Calystegia sepium ssp. sepium which has white flowers OR pink flowers with 5 white stripes and can have a slightly smaller corolla (3 - 5cm); stamens 15-25mm long which is found near the western coasts of Britain & Ireland & the Channel Islands.

No relation to : Copse Bindweed nor to Black Bindweed [plants with similar names belonging to a different family, that of the Dock & Knotweed Family].

Bindweeds have five fused petals forming an un-interrupted trumpet, but with five longitudinal creases. It is native and is found on rough and waste ground, in hedges, or by water such as ditches, fens or marshes.


  Calystegia sepium  ⇐ Global Aspect ⇒ Convolvulaceae  

Distribution
 family8Bindweed family8Convolvulaceae

 BSBI maps
genus8Calystegia
Calystegia
(Bindweeds)

HEDGE BINDWEED

Calystegia sepium

Bindweed Family [Convolvulaceae]