Verbena brasiliensis

brazilian vervain
Family

Verbenaceae

Leaf Arrangement

opposite

Leaf Attachment

petiolate, sessile

Leaf Margin

serrate

Leaf Type

simple

Leaf Shape

linear, elliptic, lanceolate

Growth Form

forb, shrub

Flower Color

blue, pink, purple

Flower Month

May - October

Height (meters)

0.9 - 2.5

Milky Sap

No

Armed/Unarmed

Unarmed

Origin

introduced

Lifespan

annual

Growing Season

Warm season


Wetland Class

FAC

Prairie Coefficient of Conservatism

-2

Field Characters

Similar to V. bonariensis but has smaller diameter stems, more loosely arranged spikes, and the central stem leaves are subsessile or have petioles.

Cultural Information

Seed germination is improved by cold/moist or cold/dry stratification (Steffen 1997).

Animal Use

An excellent nectar producer and good butterfly plant. Swarms of butterflies can often be seen flitting around the flowers on roadsides where it has colonized disturbed ground. The following information is for the genus Verbena: Animals that eat its seeds: Stilt sandpiper, Lark bunting, Cardinal, Junco, Field sparrow, Song sparrow, Swamp sparrow, Tree sparrow, White-crowned sparrow. Animals that the plant: Cottontail rabbit (Martin et al. 1951).

Natural History

One of the more common, and vigorous, weedy exotics in coastal prairie. It is found in a variety of soil types, but is most common on dry sandy soils, throughout Louisiana and southeast Texas. It is native to most of South America and is now naturalized from Virginia to Florida and west along the gulf coast. It is also now reported from Oregon and California (Correll and Johnston 1979).

Habitat

Waste places, dry sandy soil, coastal prairies.