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Weed Seed: Common hemp-nettle (Galeopsis tetrahit)

Family

Lamiaceae

Distribution in Canada

Found in Canada

Duration of life cycle

Annual

Seed/Fruit type

Seed identification features

Size

Shape

Surface texture

Colour

Other structures

Similar species

Good reference material is needed to distinguish these 3 species.

Hairy hemp-nettle (Galeopsis pubescens)

Large-flowered hemp-nettle (Galeopsis speciosa)

Photos

Photo - Common hemp-nettle (Galeopsis tetrahit) seed (inner side with hilum at base)
Common hemp-nettle (Galeopsis tetrahit) seed (inner side with hilum at base)
Photo - Common hemp-nettle (Galeopsis tetrahit) seed (outer side)
Common hemp-nettle (Galeopsis tetrahit) seed (outer side)
Photo - Common hemp-nettle (Galeopsis tetrahit) seeds
Common hemp-nettle (Galeopsis tetrahit) seeds

Similar species

Photo - Similar species: Hairy hemp-nettle (Galeopsis pubescens) seeds (inner side [L], outer side [R])
Similar species: Hairy hemp-nettle (Galeopsis pubescens) seeds (inner side [L], outer side [R])
Photo - Similar species: Large-flowered hemp-nettle (Galeopsis speciosa) seeds (inner side [L], outer side [R])
Similar species: Large-flowered hemp-nettle (Galeopsis speciosa) seeds (inner side [L], outer side [R])
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