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Watsonia files

The weedy species

Methods of control

Management Guidelines

Some case studies

Article by Peter Day

References

Oxalis

The weedy species

Oxalis biology

Methods of control

Further reading

Euphorbia

Introductory information

Distribution & life cycle

How it spreads

Control & management

Further reading

Links

Taro biology

Taro control

Further reading

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Asparagus fern

Arum Lily

Freesias

Pampas grass

Woody Weeds

Potential weeds

Carnation weed

Oxalis


Click to enlarge Photo by Penny Hussey
Watsonia meriana

Watsonia meriana is widespread throughout south-west Western Australia. The basal leaves can grow up to 1m long and the flowering stem is sometimes balanched. Distinguishable from Watsonia bulbillifera by lack of bulbils on stem. Flowers are dull reddish orange pink, purple or white and often tinged pink or green.

Flowering: October - November


Click to enlarge Photo by Penny Hussey
Watsonia marginata

Watsonia marginata is recorded from Perth to Busselton. It grows up to 1.5m tall with basal eaves up to 500mm long. The flowers are pale violet with a white to purplish red triangular mark on each petal.

Flowering: October - December


Click to enlarge
Click to enlarge Photos by Rod Randall
Watsonia bulbillifera

Watsonia bulbillifera (also called Watsonia meriana variety bulbillifera) grows between Geraldton and Esperence. As well as the underground corm there are many bulbills formed on the old flower stalk. The basal leaves are up to 1100mm long and the flower dull reddish orange.

Flowering: October - December


Click to enlarge Photo by Kate Brown
Chasmanthe floribunda

Chasmanthe floribunda are often mistaken for Watsonia.

Flowering: July - August

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