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Verbena urticifolia

Verbena urticifolia L.

 

White Vervain

KingdomPlantaePlants, but not fungi, lichens, or algae (from Stearn’s Botanical Latin)
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionMagnoliophytaFlowering plants, also known as angiosperms
ClassMagnoliopsidaDicotyledons—plants with two initial seed leaves
SubclassAsteridaeA large class that encompasses asters
OrderLamialesAromatic herbs and shrubs, including lavender, lilac, olive, jasmine, ash, teak, snapdragon, sesame, psyllium, garden sage, mint, basil, and rosemary
FamilyVerbenaceaeVerbena (vervain) family
GenusVerbenaFrom the word meaning “vervain”
SpeciesurticifoliaLeaves resemble those of the nettle family (Urticaceae)

About plant names...

White vervain is native to North America.

Identification: Plants are 16-40" (40-101 cm) tall, with a main stem that is hairy, hollow, and roughly square in cross-section. Leaves are opposite and unlobed, deeply veined, with irregular teeth. They are up to 6" (15 cm) × 2" (5 cm), varying from lance-shaped (lanceolate) to oval (ovate), on stems (petioles) up to 2" (5 cm) long. The flowering spikes are the most unique feature of these plants: multiply branched, up to 10" (25 cm) long and very narrow, disorderly looking, with tiny white flowers less than ⅛" (3.2 mm) around. Only a few flowers appear at a time, and they are small enough so that the spikes are mostly green.

Online References:

Verbena urticifolia at Illinois Wildflowers

Verbena urticifolia on Missouriplants.com

Verbena urticifolia at the Vanderbilt University Bioimages web site

Verbena urticifolia at Minnesota Wildflowers

Verbena urticifolia at the University of Wisconsin's Robert W. Freckmann Herbarium

Verbena urticifolia at the Lady Bird Johnson Wildflower Center

Verbena urticifolia on Plants for a Future, a resource and information centre for edible and otherwise useful plants

Verbena urticifolia (White Vervain)

7/12/2016 · Beaver Brook Conservation Area, Kibby Climb

Verbena urticifolia (White Vervain)

8/6/2013 · Dunstable Rural Land Trust, Dunstable, MA
≈ 3½ × 4½" (8.9 × 11 cm)

Verbena urticifolia (White Vervain)

7/12/2016 · Beaver Brook Conservation Area, Kibby Climb

Verbena urticifolia (White Vervain)

8/6/2013 · Dunstable Rural Land Trust, Dunstable, MA
≈ 2½ × 3½" (6.4 × 9.6 cm)

Verbena urticifolia (White Vervain)

8/21/2009 · Nashua River Rail Trail, Groton, MA
≈ 14 × 9" (35 × 23 cm)

Verbena urticifolia description by Thomas H. Kent, last updated 5 Oct 2016.

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Verbena urticifolia (White Vervain)

8/2/2012 · Nashua River Rail Trail, near Nashoba Hospital, Ayer, MA
≈ 9 × 6" (23 × 15 cm)

Verbena urticifolia (White Vervain)

8/21/2009 · Nashua River Rail Trail, Groton, MA
≈ 15 × 10" (39 × 26 cm)

Verbena urticifolia (White Vervain)

7/12/2016 · Beaver Brook Conservation Area, Kibby Climb

Verbena urticifolia (White Vervain)

7/12/2016 · Beaver Brook Conservation Area, Kibby Climb

Verbena urticifolia (White Vervain)

8/6/2013 · Dunstable Rural Land Trust, Dunstable, MA
≈ 11 × 7" (28 × 18 cm)

Verbena urticifolia (White Vervain)

8/2/2012 · Nashua River Rail Trail, near Nashoba Hospital, Ayer, MA
≈ 7 × 4½" (17 × 11 cm)

Verbena urticifolia (White Vervain)

8/6/2013 · Dunstable Rural Land Trust, Dunstable, MA
≈ 10 × 7" (25 × 16 cm)

Range:

About this map...