Tagasaste

Tagasaste.

Common name

Tagasaste

Scientific Name

Chamaecytisus palmensis

Type of plant

Legumes And Peas (Family Fabaceae)

About this weed

This weed was originally introduced as a fodder crop from the Canary Islands and is still grown extensively for that purpose and for land rehabilitation.

Description

Tagasaste is an erect shrub or tree growing to 6 m high producing masses of white/cream/yellow flowers from April to September. Reproduction is by seed that is then dispersed by various methods including ants, birds, slashing, garden refuse, plantings, machinery and soil movement. It takes about 3 years before it flowers. Seeds are poisonous to humans. Vegetative regeneration strategies include its ability to resprout occasionally. The seedbank persists for 10+ years. Soil stored seed germinates prolifically following fire and mature plants occasionally resprout.

Impact on Bushland

Tagasaste is a serious invader of disturbed bushland on lateritic soils in higher rainfall areas. It has naturalised in almost all areas where it has been planted. The plant germinates readily after soil disturbance, forming dense infestations that can smother native vegetation and prevent regeneration. It also increases soil nitrogen, encouraging other weeds to colonise sites.

Location

Found in wetter areas of the South-West Province from Badgingarra to Esperance in disturbed areas. Tagasaste prefers white sand, grey sandy clay, lateritic soils and loam. It is often seen along roadsides or in adjacent bushland.

Priority for removal

High: it can disrupt ecological processes or result in loss of biodiversity.

Management (hand)

Hand pull seedlings where possible.

Management (herbicide)

For mature plants apply 250 ml Access® in 15 L of diesel to basal 50 cm of trunk (basal bark). Foliar spray with 0.5 g/10 L metsulfuron methyl + Pulse® Read the manufacturers’ labels and material safety data sheets before using herbicides. Optimal months to spray are March to September.

Flowering month/s

April, May, June, July, August, September, October

Flower colour/s

Yellow, White, Cream

Information source

https://florabase.dpaw.wa.gov.au/browse/profile/18156

Additional information

https://florabase.dpaw.wa.gov.au/weeds/swanweeds/

Hussey, B.M.J., Keighery, G.J., Dodd, J., Lloyd, S.G. and Cousens, R.D. (2007) Western weeds. A guide to the weeds of Western Australia, Second Edition, The Weeds Society of Western Australia, Victoria Park, Western Australia.

Tagasaste images


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Location

Urban Bushland Council WA Inc

2 Delhi Street West Perth WA 6005

PO Box 326 West Perth WA 6872

(08) 9420 7207 (please leave a message)

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