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Laportea canadensis (Linnaeus) Weddell. Woodnettle. Phen: May-Aug; late Jul-Oct. Hab: Moist, nutrient-rich forests, seepage swamps, especially abundant in cove forests in the Mountains and bottomlands in the Piedmont. By mid-summer, Laportea often becomes the aspect dominant in rich, moist cove forests of the mountains (especially those with extensive seepage), visually replacing the diverse spring flora. Dist: NS and se. MB south to Panhandle FL and OK.

Origin/Endemic status: Native

Other Comments: The stinging hairs can penetrate pants made of light-weight or loosely woven fabrics.

Synonymy : = Ar, C, F, FNA3, G, GrPl, GW2, Il, K1, K3, K4, Mi, NE, NY, Pa, RAB, Tat, Tn, Va, W, WH3, WV; ? Urticastrum divaricatum (L.) Kuntze – S, S13

Links to other floras: = Laportea canadensis - FNA3

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FACW
  • Eastern Mountains and Piedmont: FAC
  • Great Plains: FAC
  • Midwest: FACW
  • Northcentral & Northeast: FACW

Heliophily : 2

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image of plant© Keith Bradley | Original Image ⭷
image of plant© Alan M. Cressler | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© J.W. Hardin | Original Image ⭷
image of plant© Edwin Bridges | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© J.W. Hardin | Original Image ⭷
image of plant© J.W. Hardin | Original Image ⭷
image of plant© Bruce A. Sorrie | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷

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Horticultural Information

NCBG trait

Intro: Upright perennial covered in stinging hairs, found in moist, nutrient-rich forests and seepage swamps, especially abundant in cove forests in the Mountains and bottomlands in the Piedmont.

Stems: Stems stout, covered with stinging hairs.

Leaves: Leaves alternate, long-petiolate, oval and with long pointed tips, 2-6 in. long, with prominent veins, sharply toothed,.

Inforescence:

Flowers: Male and female flowers in separate branching clusters arising from leaf axils, the female ones toward top of plant. Female flowers with 4 tiny, greenish-white sepals, and male flowers with 5 sepals (no petals).

Fruits: Fruit an achene containing 1 shiny, black seed.

Comments:

Height: 1-3.5 ft.

plant sale text:

bloom table text:

description: Upright perennial covered in stinging hairs, found in moist, nutrient-rich forests and seepage swamps, especially abundant in cove forests in the Mountains and bottomlands in the Piedmont.

stems: Stems stout, covered with stinging hairs.

leaves: Leaves alternate, long-petiolate, oval and with long pointed tips, 2-6 in. long, with prominent veins, sharply toothed,.

inflorescence:

flowers: Male and female flowers in separate branching clusters arising from leaf axils, the female ones toward top of plant. Female flowers with 4 tiny, greenish-white sepals, and male flowers with 5 sepals (no petals).

fruits: Fruit an achene containing 1 shiny, black seed.

comments:

cultural notes:

germination code:

native range: eastern North America