White-edged Nightshade

What is white-edged nightshade?

(Solanum marginatum)

White-edged nightshade, image:  Christian Goninon, DPIPWEGeneric Weed Distribution Map
  • White-edged nightshade is a toxic weed found on roadsides, waste areas and in gardens.
  • White-edged nightshade is a declared weed in Tasmania under the Tasmanian Weed Management Act 1999. The importation, sale and distribution of white-edged nightshade are prohibited in Tasmania.

How to identify white-edged nightshade?

  • White-edged nightshade is a small shrub growing to 1.5 metres high. The stems are silvery-white and densely hairy and with scattered yellow prickles. The leaves are dull green with white edges above, and with a dense mass of white hairs on the lower surface. Upper and lower surfaces of the leaves also have scattered yellow prickles. The flowers are white to pale mauve and carried in groups of 2 to 8 at the ends of branches. The fruit is a yellow berry.
  • Seeds germinate in spring and summer, with seedlings growing slowly in their first season. Flowering is in October to November. Plants become dormant in late autumn or early winter, and resprout in the spring.
  • For help in identifying white-edged nightshade, search the Dennis Morris Weeds and Endemic Flora database for white-edged nightshade illustrations. If you are still in doubt about the weed you are dealing with, contact your Regional Weed Management Officer on 1300 368 550 for help.
White-edged nightshade, image: D. Lane
Image top: White-edged nightshade, Christian Goninon, DPIPWE
Images above: White-edged nightshade showing size (top of ruler is at 200 mm), photo: D Lane

White-edged nightshade in Tasmania

  • White-edged nightshade is an occasional weed of neglected areas and roadsides in Tasmania. It has been reported on the east coast at Swansea and on Maria Island, the north-west coast and larger infestations have been found around Hobart (see map).
  • White-edged nightshade can invade coastal environments making it a potentially serious environmental weed. White-edged nightshade is also found in gardens as an ornamental. White-edged nightshade is also toxic and has caused illness in people eating the fruits. White-edged nightshade is not currently a serious weed of pasture or crops in Tasmania.

What is the legal status of white-edged nightshade in your area?

  • The legal responsibilities of landholders and other stakeholders in dealing with white-edged nightshade are laid out in the white-edged nightshade Statutory Weed Management Plan.
  • Use Table 1 (Zone A municipalities) to find out whether this weed occurs in your municipality.
Detailed management and control guidelines for white-edged nightshade can be found in the White-edged nightshade Control Guide. Refer also to Herbicides for White-edged nightshade Control. For further information see DPIPWE's Weed Links and Resources.

See also:
White-edged Nightshade Control Guide
White-edged nightshade Statutory Weed Management Plan
Herbicides for White-edged Nightshade
Weed Links and Resources

Other useful links:
Pest Genie

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