Status of broomrape in Tasmania(Orobanche
O. minor and
O. cernua var.
copyright: DPI NSW
- There are several species of non-native broomrape (Orobanche species) which are
declared weeds in Tasmania under the Tasmanian Weed Management Act 1999.
- The native broomrape (O. cernua var.
australiana) and another introduced broomrape (O. minor) are present in Tasmania but not considered to be a weed problem and do not come under the broomrape declaration.
importation, sale and distribution of the declared species of broomrape
are prohibited in Tasmania. The legal responsibilities of landholders
and other stakeholders in dealing with broomrape are laid out in the
Broomrape Statutory Weed Management Plan.
What does broomrape look like?
is a parasitic short-lived herb growing to 20 cm high. The plant has no
green growth. The stems are yellow-brown and branched from the base,
with dense woolly hairs on upper parts. The leaves are reduced to a few
brown scales. The flowers are pale blue, tubular and two-lipped, with
the lower lip three-lobed and the upper lip shallowly two-lobed. An
erect spike of flowers appears in spring and summer. The seeds are
pepper-like, with up to 40 000 seeds per plant.
seedlings need to attach to a host-plant root in order to grow. The
seedling grows underground for about 6 weeks before emergence above
ground. The plant flowers and sets seed within two weeks of emerging
then dies; however the dried plant may remain visible for several
copyright: DPI Victoria
- Spread is by seed. Seed remains viable for 10 years and is stimulated to germinate by exudates from plant roots.
you are in doubt about whether a plant is a declared species of
broomrape, contact your Regional Weed Management Officer on 1300 368 550
Impacts of broomrape
- Broomrape is a serious weed of broadleaved crops.
Where does broomrape occur?
- Broomrape is a native of southern Europe, western Asia, Middle East and northern Africa. On mainland Australia, broomrape has naturalised in South Australia.
- Apart from
O. minor (not included under the broomrape declaration),
Broomrape has not naturalised in Tasmania.
What you need to do
- If you locate broomrape anywhere in Tasmania, or if you find a plant that you think could be broomrape, immediately contact your Regional Weed Management Officer on 1300 368 550 to report this weed.
Broomrape Statutory Weed Management Plan
Weed Links and Resources
Other useful links
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