Bushy Starwort

Bushy Starwort.

Common name

Bushy Starwort

Scientific Name

Symphyotrichum squamatum

Type of plant

Daisies & Thistles (Family Asteraceae)

About this weed

This summer flowering annual or short lived perennial can grow to 1.5 metres tall usually in wetlands, road drains and other wetter areas.  It has small white flowers or yellow flowers and can form dense clusters in some open areas. Originally from South America but now also naturalised in Europe, the Mediterranean Region, the United States and Central America.


Bushy Starwort is a slender, erect annual weed growing to about 2 m in height mostly in summer. May also be biennial or short-lived perennial. Seeds are dispersed by wind.

Impact on Bushland

Not available.


Scattered throughout West Australia but more common in South-West Province. Likes loamy soils, peaty sand, deep white sand, granite, laterite, basalt. Also found on banks of creeks, rivers & swamps, in winter- wet sites, coastal plains and road verges. This weed like to colonise disturbed wetlands. Is also an indicator for sites with high salinity and low or moderate waterlogging.

Priority for removal

Medium: best removed by hand as it competes with native vegetation.

Management (hand)

Hand remove isolated plants before seed set. Best done in December, January and February.

Management (herbicide)

Not available.

Flowering month/s

February, March, April, May, June, July, August

Flower colour/s

Yellow, White, Cream

Information source


Additional information


Bushy Starwort images


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Urban Bushland Council WA Inc

2 Delhi Street West Perth WA 6005

PO Box 326 West Perth WA 6872

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