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

Lamium purpureum var. incisum L.
purple dead-nettle (purple deadnettle)
Lamiaceae (Mint family)

Introduction to Vascular Plants

© Frank Lomer  Email the photographer   (Photo ID #90210)

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Distribution of Lamium purpureum var. incisum
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Species Information

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Annual herb from a short taproot; stems branched from the base, reclining, inconspicuously hairy, 10-40 cm long, often somewhat purple tinted, 4-angled.
Opposite, egg-shaped to almost round, 1-5 cm long, obtuse at tip, heart-shaped at base, margins toothed with rounded to somewhat sharp teeth; leaves all stalked, the stalks 1-3 cm long.
Inflorescence of several axillary flower clusters at ends of branches; bracts leaf-like, but smaller than leaves and uppermost unstalked; corollas tubular, pink-purple, 10-15 mm long, longer than calyces, hairy outside, with or without a ring of hairs inside near the base, the hood-like upper lip 2-4 mm long; calyces tubular bell-shaped, 5-6 mm long, the slender teeth firm, unequal, somewhat spreading, about as long as the tube, hairy.
Nutlets, 4 clustered together, three-angled, squared-off at tips.
Two varieties occur in BC. The var. incisum is usually considered to be of hybrid origin between L. moschatum Mill. and L. purpureum.

1. Leaves deeply sharp-toothed ..... var. incisum (Willd.) Pers.

1. Leaves round-toothed ..... var. purpureum

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to dry waste places and roadsides in the lowland and montane zones; frequent in SW BC, infrequent E of the Coast-Cascade Mountains; 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.

Synonyms and Alternate Names

Lamium dissectum With.
Lamium hybridum

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References