Jimsonweed


Names

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Scientific Name

Datura stramonium

Biology

Description


Overview


Jimsonweed is an annual, vigorous, seed-propagated weed with spindle-shaped, white, heavily-ramified roots. Datura stramonium has a high growth rate making it a strong competitive broadleaf weed that can result in crop yield loss. The entire plant is very poisonous due to the presence of alkaloids, such as Atropine and Scopolamine.


Main description


Seedling
The cotyledons are long and narrow, and can range from 10-50 mm in height. The main stem is hairy and purple in colour. The initial leaves have a high number of veins, and when its leaves are crushed, they give off a foul odour.

 

Mature plant
The mature plant grows erect and stems are coarse. They remain purple in colour and are branched. Leaves have an egg-shaped appearance and are hairless. Leaves range from 12-24 cm in length, growing in an alternate manner. Flowering begins in June and forms trumpet shaped flowers that can reach up to 4 cm in length. Mature plants can range from 50-120 cm in height.


Optimal growth conditions


D. stramonium likes warm, nitrogen-rich soils and prefers light. It is commonly found growing in disturbed areas, along roadsides, old fields, pastures and waste places.

Occurence

Crops

  • Carrots
  • Corn
  • Potatoes
  • Soybeans
  • Tomatoes

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