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

Ajuga reptans L.
bugle-weed (common bugle)
Lamiaceae (Mint family)

Introduction to Vascular Plants

© RĂ©al Sarrazin  Email the photographer   (Photo ID #26954)

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Distribution of Ajuga reptans
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Species Information

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Perennial herb from short rhizome and long, leafy and rooting stolon; stems simple, 10-30 cm long/tall, somewhat hairy along 2 opposite sides, 4-angled.
Basal leaves in a rosette, egg-shaped or oblong, 4-7 cm long, entire to somewhat toothed, rounded at tip, becoming glabrous with age, often bronzy, gradually tapering to long stalk; stem leaves to many, opposite, shorter, more or less unstalked.
Inflorescence of 5 to 7 flowers in axillary whorls, forming a leafy, terminal spike; upper bracts of inflorescence shorter than flowers, somewhat blue-tinted, egg-shaped, entire; corollas tubular, blue or rarely pink or white, the tube exserted, the upper lip very short, the lower lip conspicuous, 3-lobed; calyces bell-shaped, 5-6 mm long, the teeth shorter than tube.
Nutlets, 4 clustered together, egg-shaped, net-veined.

Source: The Illustrated Flora of British Columbia

USDA Species Characteristics

Flower Colour:
Blooming Period:
Mid Summer
Source:  The USDA

Habitat / Range

Mesic to dry waste places in the lowland and montane zones; rare in the lower Fraser Valley; introduced from Europe.

Source: The Illustrated Flora of British Columbia


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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General References