E-Flora BC: Electronic Atlas of the Flora of British Columbia

Verbena bracteata Cav. ex Lag. & Rodr.
bracted vervain (bigbract verbena)
Verbenaceae (Verbena family)

Introduction to Vascular Plants

© Virginia Skilton  Email the photographer   (Photo ID #17118)

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Distribution of Verbena bracteata
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Species Information

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General:
Annual or more often perennial herb from a taproot; stems prostrate or decumbent, few to numerous, simple, spreading-hairy, 10-60 cm long.
Leaves:
Basal leaves lacking; stem leaves opposite, oblanceolate, 2-5 cm long, 1-2.5 cm wide, coarsely bristly, wing-stalked, irregularly toothed and cleft with pinnate segments, the terminal segments larger.
Flowers:
Inflorescence of terminal racemes up to 15 cm long with lance-linear bracts and inconspicuous flowers; corollas bluish or pinkish, sometimes white, 4-5 mm long, almost hidden by prominent bracts exceeding the calyces, lobed, the lobes about 1/4 the length of the tubes; calyces cylindric, 2.5-4 mm long, bristly-hairy.
Fruits:
Nutlets, 1-2 mm long, with prominent ribs, cross-corrugated above.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to dry sandy sites, roadsides and disturbed areas in the steppe and montane zones; rare in SW BC, locally frequent in SC BC; E to ON and S to ME, NH, NY, PA, NC, FL, MS, LA, TX, NM, AZ, CA, and MX

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Verbena bracteata

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class

Minimum

Average

Maximum

Elevation (metres) 335 385 457
Slope Gradient (%) 9 15 27
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
202 217 225
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
5 5 5
Modal Nutrient Regime
Class
Number of field plots
 species was recorded in:
3
Modal BEC Zone Class
BG
All BEC Zones (# of stations/zone) species was recorded in: BG(3)

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Verbena bracteosa Michx.
Verbena imbricata Woot. & Standl.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References