E-Flora BC: Electronic Atlas of the Flora of British Columbia

Stachys palustris L.
swamp hedge-nettle
Lamiaceae (Mint family)

Introduction to Vascular Plants

© Allan Carson  Email the photographer   (Photo ID #69008)

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Distribution of Stachys palustris
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Stachys palustris ssp. pilosa

Species Information

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Perennial herb from creeping rhizome; stems erect, 20-80 cm tall, simple or sparingly branched, 4-angled, long-stiff-hairy on the angles, shorter-hairy and frequently glandular-hairy elsewhere.
Opposite, egg-shaped or oblong to elliptic, 3.5-9 cm long, 1-4 cm wide, tips rounded to pointed, broadly rounded to slightly notched at the base, blunt-toothed, soft-hairy, sometimes glandular; unstalked or stalks less than 1 cm long; lowermost leaves small and deciduous.
Inflorescence a series of clusters of several to many flowers, the lower subtended by slightly reduced leaves, the upper by bracts; corollas tubular, rose-purple, mottled with lighter and darker spots, 11-16 mm long, the tube only slightly (or not) surpassing the calyx, abruptly expanded on the lower side at about the base of the internal ring of hairs, often with a small sac-shaped swelling, the upper lip erect, entire, 3-4 mm long, the lower lip 3-lobed, 5-7 mm long; calyces funnel-shaped, (6) 7-9 mm long, soft- to stiff-hairy, often glandular, the teeth 5, awl-shaped.
Nutlets, 4 clustered together, about 2 mm long, brown.

Source: The Illustrated Flora of British Columbia

USDA Species Characteristics

Flower Colour:
Blooming Period:
Late Spring
Fruit/Seed characteristics:
Colour: Brown
Present over the Summer
Source:  The USDA

Habitat / Range

Wet stream and lake margins, meadows and roadside ditches in the steppe zone; infrequent in S BC east of the Coast-Cascade Mountains; circumpolar, N to AK, YT and NT, E to NF and S to NY, OH and AZ; Eurasia.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Stachys palustris

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class




Elevation (metres) 410 911 1620
Slope Gradient (%) 0 0 4
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
38 38 38
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
5 6 8
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in: BG(7), BWBS(1), CWH(1), IDF(18), SBS(1)


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Taxonomic and Nomenclatural Links

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