|An illustration from Curtis's Botanical Magazine (1818).|
The species grows to a height of up to 4 metres. Between late winter and early summer (August to December in Australia) it produces yellow-orange pea-flowers with a central yellow area encircled by a band of red, and a maroon keel. The leaves are cuneiform, obovate or elliptic.
In the nineteenth century as a plant within the group of gastrolobium, it was written about in the local press. This continued into the early and mid twentieth century, due to the affects on agriculture.
It has been further analyzed within the Australian Nucleotide and Protein sequencing.
The vernacular name has been common for over 140 years, and is inappropriate due the leaves being wedge shaped, not heart shaped as the name suggests.
It occurs in the south-west of the state, usually on granite-based soils on peaks and outcrops as well as along rivers. It is associated with karri and marri forest as well as mallee and heathland.
- Gardner, C.A. and Bennetts, H.W. (1956) The Toxic Plants of Western Australia Perth, West Australian Newspapers. p. 76
- Chandler, G. T.; M.D. Crisp; L.W. Cayzer & R.J. Bayer (2002). "Monograph of Gastrolobium (Fabaceae: Mirbelieae)" (PDF). Australian Systematic Botany. 15 (5): 619–739. doi:10.1071/SB01010. page 639
- "THE GASTROLOBIUM OR POISON PLANT". The Perth Gazette and West Australian Times. 4 (29). Western Australia. 24 April 1868. p. 2. Retrieved 1 March 2017 – via National Library of Australia.
- "POISON PLANTS". The Daily News. XLI (14, 681). Western Australia. 1 April 1922. p. 8 (THIRD EDITION). Retrieved 2 March 2017 – via National Library of Australia.
- "POISON PLANTS OF WESTERN AUSTRALIA". Pingelly-Brookton Leader. I (12). Western Australia. 24 December 1925. p. 4. Retrieved 1 March 2017 – via National Library of Australia.
- "A SERIOUS POISON". Western Mail. XLIV (2, 273). Western Australia. 5 September 1929. p. 48. Retrieved 1 March 2017 – via National Library of Australia.
- Australian Nucleotide (DNA/RNA) and Protein sequences from Australian organisms in the species Gastrolobium bilobum, QFAB, retrieved 1 March 2017
- Aplin, T.E.H (1973), Poison plants of Western Australia : gastrolobium and oxylobium, Department of Agriculture, retrieved 1 March 2017
- Aplin, T. E. H; Western Australia. Department of Agriculture (1968), Heart-leaf poison, river poison, Stirling Range poison, Western Australian Department of Agriculture], retrieved 1 March 2017
- "Gastrolobium bilobum". FloraBase. Western Australian Government Department of Parks and Wildlife.
- "Gastrolobium bilobum". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
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