Crop Protection Online > Pests - Weed biology<br> <sub>Agro-region: Denmark</sub> - Amsinckia micrantha
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3.5 2024 undefined

Weed biology
Agro-region: Denmark

Amsinckia micrantha Previous page Next page

Go to identification key for weeds

Can be mistaken for

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Characteristics

Cotyledons
Boomerang-shaped with slightly sinuate leaf margins. Stalked. The surface is covered with stiff hairs. Length approx. 20-30 mm.

True leaves
Long and slender with slightly sinuate leaf margins. Unstalked. The surface is covered with stiff hairs. Length approx. 30-40 mm.

Mature plant
Common Fiddleneck is a medium-sized plant with a 20-50 cm high, erect stem. The plant is especially known by its stiff to almost bristly hairs on stems and leaves. The diameter of the flower is approx. 5-7 mm.

Seed
Beetle- or slipper-shaped with drop-shaped outline. The surface is sinuately nodose and granular.

Biology

Propagation and dispersal
Only through seeds.

Habit
Summer and winter annual.

Importance

The species is sometimes found in spring-sown crops in most of Jutland. Common Fiddleneck is a relatively new weed species in Denmark where it is sPeading quickly.

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Taxonomy

Boraginaceae.

Names in different languages

Danish : Gulurt
German : Amsinckia
English : Fiddleneck
Latin : Amsinckia micrantha
Norwegian : Gullurt
Swedish : Åkervindhalm
Amsinckia micrantha: Seedling
Seedling
Amsinckia micrantha: Early stage
Early stage
Amsinckia micrantha: Flower
Flower
Amsinckia micrantha: Mature plant
Mature plant
Amsinckia micrantha: Seeds
Seeds
 
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