white vervain

(Verbena urticifolia)

               
Overview

White vervain (Verbena urticifolia), also called nettle-leaf vervain, is an herbaceous forb that occurs in the eastern half of North America including Minnesota. There are two generally recognized varieties. On one, var. leiocarpa, the underside of the leaf is densely short-hairy, the calyx is shorter, and the nutlet is shorter. The range for this variety is almost throughout the range for the species. It intergrades freely with the other variety, var. urticifolia. For this reason,some authors do not acknowledge the existence of the varieties.

white vervain

  Photo by Luciearl
   
Identification

See Subordinate Taxa (below) for identifying information.

 
Distribution Distribution Map  

Sources: 2, 3, 4, 5, 7, 28.

 
Comments

 

 
Taxonomy

Family:

Verbenaceae (verbena)

 

Subfamily:

Verbeneae

 

Genus:

Verbena (vervain)

 

Section:

Verbena

 

Series:

Leptostachyae

 
Subordinate Taxa

white vervain (Verbena urticifolia var. leiocarpa)

white vervain (Verbena urticifolia var. urticifolia)

 
Synonyms

 

 
Common
Names

burvine

nettle-leaf vervain

white verbena

white vervain

   

 

 

 

 

 

 

 

 

 

       
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Luciearl
       
  white vervain    
       
       
MinnesotaSeasons.com Photos
   

white vervain (Verbena urticifolia var. leiocarpa)

  white vervain (var. leiocarpa)   white vervain (var. leiocarpa)
       

white vervain (Verbena urticifolia var. urticifolia)

  white vervain (var. urticifolia)   white vervain (var. urticifolia)
       

 

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  White Vervain (Verbena urticifolia)
Bill Keim
 
  White Vervain (Verbena urticifolia)  

 

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