A second flowering may occur towards the end of summer and into autumn. Flowering mostly occurs from late winter to late spring. Plants are normally at least two years of age before they are able to reproduce. Seed can remain viable in the soil for many years.
Seeds of these species have a hard coat that can delay germination for months or years, allowing large seed banks to develop. The ability of the plants to shoot their seeds some metres away allows infestations to thicken quickly and to spread, particularly along water courses. Their pods burst open in hot weather during spring and summer, scattering seeds up to several metres from the plant. Their main method of spread is now via seed by soil, water, machinery, footwear, stock and wildlife. Originally, both gorse and brooms were planted as hedge or ornamental garden plants. Map shows weed distribution and density estimated by local council weeds officers in 2010. Estimated distribution of Scotch broom in NSW (Map: NSW Noxious Weed Local Control Authorities, 2010).Record the presence of priority weeds in their council area and provide this to the NSW Department of Primary Industries. These records are made by authorised officers during property inspections under the Biosecurity Act 2015. Recorded presence of Scotch broom during property inspections (Map: Biosecurity Information System - Weeds, 2017-2022).Some large populations of Scotch broom exist on the Barrington Tops and near Braidwood. Gorse is a problem in the south-eastern region of the state and the Blue Mountains. Gorse and brooms are mostly confined to cool temperate areas of NSW, particularly the tablelands. If going to a hospital take a piece of the plant for identification.If the patient is conscious and responsive call the Poisons Information Centre on 13 11 26 or your doctor.If the patient is unconscious, unresponsive or having difficulty breathing dial 000 or get to the emergency section of a hospital immediately.If ingested in large amounts the toxins contained in scotch broom can weaken the heart. The seeds and leaves are poisonous and can cause high blood pressure and nausea if ingested. Scotch broom is toxic to humans and will cause discomfort and irritation, but is not life-threatening. They form dense thickets which can block access by humans and stock but harbour feral animals such as rabbits, foxes and pigs. Scotch broom will smother desirable vegetation which reduces pasture stocking rates. This plant must not be sold anywhere in NSW This plant is a Weed of National Significance
0 kommentar(er)
