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Australian Botanical Illustration - Information about Australia's Flora
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A portfolio of illustrations

of some plants known to be poisonous in S.E. Australia

R

Plant Name

Notes*

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Ranunculus lappaceus

RANUNCULACEAE

 

Australian Buttercup

There is no record of poisoning in humans but the plant can cause blindness in horses.

Ranunculus lappaceus

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Ranunculus lappaceus

RANUNCULACEAE

Australian Buttercup

There is no record of poisoning in humans but the plant can cause blindness in horses..

Ranunculus lappaceus

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Rheum rhabarbarum

POLYGANACEAE

Garden Rhubarb, Pieplant

Leaves of this plant are toxic. The coloured stalks which are eaten as stewed fruit are no longer permitted to be sold with the leaves on.

Rheum rhabarbarum

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Rhododendron ''Sappho'

ERICACEAE

Definite records of poisoning are difficult to find in Australian literature.

Rhododendron ''Sappho'

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Rhodotypos scandens

ROSACEAE

 

Rhodotypos scandens

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Rhus succedanea

ANACARDIACEAE

Scarlet Rhus, Wax Tree

All parts of this plant are dangerously toxic The sap is extremely poisonous on contact and causes many cases of dermal poisoning each year..

Rhus succedanea

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Ricinus communis

EUPHORBIACEAE

Castor Oil Plant, Palma Christi

This plant is dangerously poisonous. It is a very ornamental plant when in leaf. The reddish flowers produce soft spiny fruits in interesting bunches attractive to children. The seeds are very toxic. .One seed can cause severe poisoning.

Ricinus communis

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Robinia pseudoacacia

FABACEAE

Locust Tree, Black Locust Tree

The plants are dangerously poisonous particularly the pods and seeds.

Robinia pseudoacacia

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*Information in the 'Notes' field is taken from:
Everist, Selwyn L. (1974). Poisonous Plants of Australia. Angus & Robertson, Sydney, N.S.W.
Shepherd, R.C.H. (2004) Pretty but Poisonous. R.G. and F.J. Richardon, Melbourne.
Wilson, S. (1997). Some Plants are Poisonous. Reed Books Australia, Kew, Victoria.

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