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Galeopsis tetrahit

Galeopsis tetrahit L.

 

Common Hemp-nettle

KingdomPlantaePlants, but not fungi, lichens, or algae
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
FamilyLamiaceaeMint family
GenusGaleopsisMeans “looks like a weasel,” for the vague resemblence of the corolla
Speciestetrahit“Four-parted,” probably for the plant’s ovary

About plant names...

Common hemp-nettle is native to Europe and Asia, now widespread and often considered invasive in North America.

Identification: Plants are 6-28" (15-70 cm) tall, with branched stems that have hairs that are bent backward (retrorse). Leaves are opposite, with stems about ⅜-1" (1-2.6 cm) long, elliptic to ovate, 1-4" (3-10 cm) × ⅜-1¾" (1-5 cm). They have short stiff hairs and crenate edges. Flowers are tubular and bilaterally symmetrical, appearing from June to September. They are purple with white centers or white with pink/purple centers, or just plain white.

Edibility: Poisonous Skull & Crossbones

Online References:

Galeopsis tetrahit on Missouriplants.com

Galeopsis tetrahit at the University of Wisconsin-Green Bay Cofrin Center for Biodiversity

Galeopsis tetrahit on biology.burke.washington.edu

Galeopsis tetrahit on Invasive.org, Center for Invasive Species and Ecosystem Health

Galeopsis tetrahit on luirig.altervista.org

Galeopsis tetrahit on Discover Life

Galeopsis tetrahit on Plants for a Future, a resource and information centre for edible and otherwise useful plants

Galeopsis tetrahit on michiganflora.net

Galeopsis tetrahit (Common Hemp-nettle)

8/7/2013 · Amos Kendall Conservation Land, Dunstable, MA
≈ 8 × 6" (20 × 14 cm)

Galeopsis tetrahit description by Thomas H. Kent, last updated 31 Oct 2013.

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Galeopsis tetrahit (Common Hemp-nettle)

8/7/2013 · Amos Kendall Conservation Land, Dunstable, MA
≈ 8 × 6" (20 × 14 cm)

Galeopsis tetrahit (Common Hemp-nettle)

8/7/2013 · Amos Kendall Conservation Land, Dunstable, MA
≈ 6 × 4" (16 × 10 cm)

Galeopsis tetrahit (Common Hemp-nettle)

8/7/2013 · Amos Kendall Conservation Land, Dunstable, MA
≈ 6 × 9" (16 × 23 cm)

Range:

About this map...