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FIELD BINDWEED

Convolvulus arvensis

Bindweed Family [Convolvulaceae]

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category
category8Climbers
status
statusZnative
flower
flower8bicolour
 
flower
flower8pink flower8lilac
 
flower
flower8white
 
inner
inner8yellow inner8pink inner8red
 
morph
morph8actino
 
petals
petalsZ5  petalsZ1
(1)
type
typeZtrumpet
 
type
typeZfused
 
stem
stem8round
 
smell
smell8scent smell8aromatic smel8perfume
scent
toxicity
toxicityZmedium
 

2nd July 2011, Hightown brick beach, Sefton Coast. Photo: © RWD
Growing right next the sea, but it is not Sea Bindweed which has smaller and shiny leaves like those of Lesser Celandine. The sea has here eroded the cliff so much that Field Bindweed finds itself as close to the sea as it can get without being in it at high tide.


2nd July 2011, Hightown brick beach, Sefton Coast. Photo: © RWD
When having nothing to climb it is prostrate, barely reaching a foot high. The flowers can be either pink, or white, or pink and white with the pink strips being narrower than the white strips, particularly visible on the rear.


2nd July 2011, Hightown brick beach, Sefton Coast. Photo: © RWD
The leaves are dull, slightly hairy and arrow-head shaped, quite un-like the shiny kidney-shaped leaves of Sea Bindweed.


2nd July 2011, Hightown brick beach, Sefton Coast. Photo: © RWD
Can be prostrate, as here, or climbing when it climbs up to 1m, usually up wire fences.


2nd July 2011, Hightown brick beach, Sefton Coast. Photo: © RWD
The flowers have roll-over surrounds less often than Sea Bindweed.


2nd July 2011, Hightown brick beach, Sefton Coast. Photo: © RWD
Like all Bindweeds, the flowers are trumpet shaped, with five folds barely delineated into five petals.


2nd July 2011, Hightown brick beach, Sefton Coast. Photo: © RWD
Has five stamens with violet strped anthers, and a long-forked stigma. The throat is yellow deep within.


2nd July 2011, Hightown brick beach, Sefton Coast. Photo: © RWD
The five sepals are green (rather than light-green) and small in relation to the flower. There are two short bracts about an inch below the flower on the hairy stalk, a definitive feature of Field Bindweed.


2nd July 2011, Hightown brick beach, Sefton Coast. Photo: © RWD


15th Aug 2014, dune slacks, Hall Rd, Sefton Coast. Photo: © RWD
The five sepals are brownish with a pointed mucronate tip.


2nd July 2011, Hightown brick beach, Sefton Coast. Photo: © RWD
The five folds in the exponential horn are more visible from the rear because they are often of a darker shade of pink.


2nd July 2011, Hightown brick beach, Sefton Coast. Photo: © RWD
Five stamens with long anthers bearing white pollen. The stigma is characteristically shaped like a pitchfork with two long prongs.


15th Aug 2014, dune slacks, Hall Rd, Sefton Coast. Photo: © RWD
The Ovary is yellow and deep within the throat of the flower.


15th Aug 2014, dune slacks, Hall Rd, Sefton Coast. Photo: © RWD
The anthers have deep purple/beetroot-coloured lines along the edges.


2nd July 2011, Hightown brick beach, Sefton Coast. Photo: © RWD
Leaves greyish-green, felty hairy, with an orangish rim.


2nd July 2011, Hightown brick beach, Sefton Coast. Photo: © RWD
Leaves have an orange periphery and felty hairs.


2nd July 2011, Hightown brick beach, Sefton Coast. Photo: © RWD
Possessing no tendrils, Field Bindweed climbs mesh fences and other plants by twinning around them clockwise as it grows. Here it has twinned around itself.


20th Aug 2014, dunes, Hall Rd, Sefton Coast. Photo: © RWD
The leaves by transmitted light with the petals still folded up.


Some similarities to : Sea Bindweed but that has shinier kidney shaped leaves.

Slight resemblance to : other Bindweeds belonging to a differing Genus (Calystegia) such as Hedge Bindweed, Large Bindweed and Hairy Bindweed but the flowers of Field Bindweed are much smaller than these, and the sepal tube is even smaller proportionately, as well as having other differences.

Uniquely identifiable characteristics

Distinguishing Feature :

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.

Field Bindweed is mildly toxic (the seeds especially so) containing Tropane alkaloids such as PseudoTropine and lesser quantities of Tropine, Tropinone and meso-CuscoHygrine. CuscoHygrine is also found in Coca (the plant containing Cocaine which should not to be confused with the plant from which cocoa - and chocolate - is made).


  Convolvulus arvensis  ⇐ Global Aspect ⇒ Convolvulaceae  

Distribution
 family8Bindweed family8Convolvulaceae

 BSBI maps
genus8Convolvulus
Convolvulus
(Field Bindweed)

FIELD BINDWEED

Convolvulus arvensis

Bindweed Family [Convolvulaceae]

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