ARGENTINIAN VERVAIN

GARDEN VERBENA

Verbena bonariensis

Verbena / Vervain Family Family [Verbenaceae]  

month8jul month8july month8aug month8sep month8sept

status
statusZcasual
flower
flower8mauve flower8lilac
inner
inner8purple
morph
morph8hemizygo
petals
petalsZ5
type
typeZclustered
type
typeZtrumpet
stem
stem8square
stem
stem8ribbed

22nd July 2013, a garden, Walkden, grt M/cr. Photo: © RWD
Very straight and amazingly strong and stiff stems. Branches in opposite pairs on square stems.


22nd July 2013, a garden, Walkden, grt M/cr. Photo: © RWD
Upper leaves linear and in opposite pairs but sparsely on the branches with longer linear leaves in pairs just beneath the branches.


7th Aug 2008, Martin Mere, Rufford, Lancs. Photo: © RWD
Several smaller not-yet flowered versions are to the lower left, complete with leaves.


30th July 2009, River Weaver Navigation, Frodsham, Cheshire. Photo: © RWD
Up to 5 feet tall with a cluster of magenta flowers at the tops of thin branched square stems. Fully grown plants have few stem leaves (narrow).


7th Aug 2008, Martin Mere, Rufford, Lancs. Photo: © RWD
The flowers have very long magenta tubes flared at the ends with five lilac-coloured petals. Typical of vervains, there are two stunted shorter satellite constellations below the main multiple-inflorescence. Note the two short bracts beneath the junction of the (square) stems.


16th Aug 2010, Southport, Lancs. Photo: © RWD
Short hairs cover the plant.


29th Sept 2018, a garden, Walkden, grt M/cr. Photo: © RWD
The florets are cupped by hairy sepals with long sepal teeth. The stems and branches are square with ribs.


7th Aug 2008, Martin Mere, Rufford, Lancs. Photo: © RWD
The five lilac petals are slightly notched and have a magenta centre.


7th Aug 2008, Martin Mere, Rufford, Lancs. Photo: © RWD
The flower tubes are hairy, as are the stems.


30th July 2009, River Weaver Navigation, Frodsham, Cheshire. Photo: © RWD
Several inflorescences have yet to open (the small blue pentagonal pyramids behind the open flowers).


16th Aug 2010, Southport Lancs. Photo: © RWD
Hairs fill the corolla tube preventing access by some insects (not all).


7th Aug 2008, Martin Mere, Rufford, Lancs. Photo: © RWD
A young plant has more leaves at the top, all toothed.


29th Sept 2018, a garden, Walkden, grt M/cr. Photo: © RWD
Lower leaves toothed and lanceolate, some with irregular teeth.


29th Sept 2018, a garden, Walkden, grt M/cr. Photo: © RWD
The fruits are in long cylindrical compact bunches.


29th Sept 2018, a garden, Walkden, grt M/cr. Photo: © RWD
Fruits purple at first turning brown. All stems with dense but short stiff hairs, rough to the touch.


Uniquely identifiable characteristics

Distinguishing Feature : The cluster of two-toned lilac and magenta flowers at the top of a very long few-branched stiff square stems. The jizz of a cluster of such plants is that there is a lot of space between them.

Argentinian Vervain is more likely to be found growing in a garden. But there is a very small wild colony near Martin Mere.

The long trumpet-shaped flowers of Argentinian Vervain look very similar in shape and in colour to those of the Butterfly-Bush and other members of the Buddlejaceae family, but they are not related (well, not according to taxonomists, anyway).


  Verbena bonariensis  ⇐ Global Aspect ⇒ Verbenaceae  

Distribution
 family8Verbena / Vervain family8Verbenaceae

 BSBI maps
genus8Verbena
Verbena
(Vervains)

ARGENTINIAN VERVAIN

GARDEN VERBENA

Verbena bonariensis

Verbena / Vervain Family [Verbenaceae]  

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