Verbena urticifolia

Verbena urticifolia

Taxobox
name = White Vervain


image_width = 240px
image_caption = Inflorescence
regnum = Plantae
divisio = Magnoliophyta
classis = Magnoliopsida
ordo = Lamiales
familia = Verbenaceae
genus = "Verbena"
species = "V. urticifolia"
binomial = "Verbena urticifolia"
binomial_authority = L.

"Verbena urticifolia" (White Vervain) is a herbaceous plant in the vervain family (Verbenaceae). It belongs to the "true" vervains of genus "Verbena".

White Vervain has opposite, simple leaves on thin, rigid, green stems. The small flowers are borne in spikes; they open in summer and unusually for this normally bluish-flowered genus are white.

It might be closest to a group that might include such North American species as "V. lasiostachys" or "V. menthifolia", and the Common Vervain ("V. officinalis") from Europe. As these, it is diploid with 14 chromosomes altogether. The relationship of the Swamp Verbena ("V. hastata") to these species is more enigmatic; its evolution might have involved hybridization with the White Vervain or a related species in the past.Yuan & Olmstead (2008)]

Footnotes

References

* (2008): A species-level phylogenetic study of the "Verbena" complex (Verbenaceae) indicates two independent intergeneric chloroplast transfers. "Mol. Phylogenet. Evol." 48(1): 23-33. doi|10.1016/j.ympev.2008.04.004 (HTML abstract)


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Look at other dictionaries:

  • Verbena urticifolia — ID 87257 Symbol Key VEUR Common Name white vervain Family Verbenaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO,… …   USDA Plant Characteristics

  • Verbena urticifolia var. urticifolia — ID 87259 Symbol Key VEURU Common Name white vervain Family Verbenaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO …   USDA Plant Characteristics

  • Verbena urticifolia var. leiocarpa — ID 87258 Symbol Key VEURL Common Name white vervain Family Verbenaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AR, CT, DC, FL, IA, IL, IN, KS, KY, MD, MI, MN, MO, NC, ND, NE, NJ, NY, OH …   USDA Plant Characteristics

  • Verbena urticifolia L. — Symbol VEUR Common Name white vervain Botanical Family Verbenaceae …   Scientific plant list

  • Verbena urticifolia L. var. urticifolia — Symbol VEURU Common Name white vervain Botanical Family Verbenaceae …   Scientific plant list

  • Verbena urticifolia L. var. incarnata (Raf.) Moldenke — Symbol VEURU Synonym Symbol VEURI Botanical Family Verbenaceae …   Scientific plant list

  • Verbena urticifolia L. var. incarnata (Raf.) Moldenke — Symbol VEURU Synonym Symbol VEURI Botanical Family Verbenaceae …   Scientific plant list

  • Verbena urticifolia L. var. leiocarpa L.M. Perry & Fernald — Symbol VEURL Common Name white vervain Botanical Family Verbenaceae …   Scientific plant list

  • Verbena urticifolia L. var. simplex Farw. — Symbol VEURU Synonym Symbol VEURS Botanical Family Verbenaceae …   Scientific plant list

  • Verbena — Verbena …   Wikipédia en Français

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