seashore vervain
Verbena montevidensis Spreng.


Overview


Appearance
Verbena montevidensis, Seashore vervain is a rapid growing, erect, and clump forming perennial herb. The 3-6 ft. (0.9-1.8 m) tall stems are slender, rough and square. Upright stems branch widely off the central stem. V. montevidensis may survive as an annual in colder climates as it readily self-seeds.
Foliage
V. montevidensis leaves are dark green. Most of the leaves are in a basal rosette. The opposite leaves clasp the stem. Leaves are elliptic to lanceolate, ranging from 3-5 in. (7.6-12.7 cm) long with serrate margins.
Flowers
The small five petaled flowers of V. montevidensis are lavender to purple and are borne in terminal cymes. They bloom all summer until the first frost.
Fruit
V. montevidensis fruits are nutlets. Each flower produces four seeds.
Ecological Threat
Verbena montevidensis is native to South America. It has escaped cultivation and become naturalized in disturbed areas across the southeastern United States. V. montevidensis is drought and heat tolerant and is very common along roadsides and other disturbed areas. Verbena montevidensis is very similar to V. bonariensis and V. incompta but all are invasive species.

Selected Images



Maps



EDDMapS Distribution

EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

State Regulated List

State Regulated List - This map identifies those states that list this species on their regulated list. For more information, visit Invasive.org

Taxonomic Rank


Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Asteridae
Order: Lamiales
Family: Verbenaceae
Genus: Verbena
Subject: Verbena montevidensis Spreng.

Categories


Plants - Forbs/Herbs