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HomeLists and Links > Nature in Australia > Alphabetical Wildflower Index > Wildflowers M > Macrozamia as food
Macrozamia riedlei Zamia (a Cycad which grows throughout the south west of Western Australia) and the similar Macrozamia fraseri as a bush food.

Male and female flowers, fruit filled with initially bright orange seeds like small eggs.  The vibrant colour fades.
Plant toxic to cattle. Various parts of the seeds of Macrozamia species were eaten by Aborgines after treatment, which varied between regions of being by water or be burial.   
 
The Noongar people of the Perth region used the outer coating of the seeds after treating.  In some areas of Australia, Aborigines ground the seeds into a flour after special treatments to leach out the toxins.  Early settlers were poisoned trying them.
 
References on this page are provided for interest, and I cannot vouch for the accuracy of what is published on these pages.  They are referring to methods used in varius states of Australia.

Macrozamia spp. (Burrawangs)

The seeds of these and other cycads are borne in a large cone and have an orange outer coat. They are POISONOUS, but the Aborigines knew how to treat them to remove the poison, and so take advantage of the large amount of food provided by a single plant. One of the ways was to cook the seed, break it up, and then soak it for up to three weeks in running water.

 

In Western Australia, only the outer red part was eaten, after treatment by washing and burying.

 

NSW, NT, QLD, WA.

Extract from Australian National Botanic Gardens  

 

Burrawong is from an Aboriginal language in New South Wales

 

 

Macrozamia riedlei

Another food which required considerable preparation before it could be eaten was the fruit of the Zamia palm (Macrozamia riedlei) which, being one of the few trees in the area which bore edible fruit (see below), was an important source of food. The " Zamia nuts ", known as baio, bayio, boyoo, or byyu (see Appendix 3), caused vomiting if they were eaten raw, and were considered poisonous by the Aborigines (Grey 1841, vol. 2, p. 295; Drummond 1839a MS.).

 

Towards the end of March, when the fruit was ripe, it was collected, soaked in water for a period, and then buried until the pulp was then safe to be eaten either raw or roasted (Backhouse 1843, p. 541; Grey 1841, vol. 2, p. 296; Hammond 1933, p. 28; Moore 1884b, p. 17; Stokes 1846, vol. 2, p. 132).

Extract from Museum of Western Australia 

 

 

Macrozamia riedlei, Aboriginal name: Jeeriji (Noongar)

The toxic seeds were used as a food by Aboriginals after extensive processing, European explorers were poisoned from eating them raw.

    After treatment, the pulp which encases the seed is roasted before eating, it tastes similar to a tomato

    Raw seeds were ground into a powder and used to ‘stun’ fish in local waterways to make the fish easier to catch

Extract from SERCUL    

  

 

Noongar people ate only the seed covering

The traditional Noongar people of south-western Australia developed over many thousands of years an effective means of detoxifying and enhancing the nutrient food value of the bright red outer seedcoat of the toxic Macrozamia plant through a process of soaking and burying the seed in an

anaerobic environment for several weeks. It would seem that the toxin (macrozamin) diminishes and is potentially eliminated as a result of this unique controlled fermentation and storage process - the end product being an extremely nutritious and favoured food known as by-yu (or kwineen) rich

in oil and carotene.

Extract from Anthropology from the shed   

 

From multiple sources, as referenced in the link

Seeds of the zamia, a spiky, palmlike plant, were dried in the sun, then put in a dilly bag and suspended in running water for 4-5 days. They were then crushed and pounded between two flat stones and ground into a fine paste. This paste was wrapped in paper bark, baked under ashes and eaten as cakes.

 

Seeds of the pineapple palm were crushed into a flour, then washed in running water for a week, cooked in hot coals and eaten.

Extract from The Western A Price Foundation  

 

 

Aboriginal Culture within Mooro Country, Nyoongar people who lived between Fremantle and

Moore River

The Zamia Palm (Djiridji) is a cycad which grows locally. They have large seed pods full of red seeds (bayou) which were collected, however the seeds were not eaten straight away due to toxins in the plant. To leach the poison out of the seeds a reed bag was made. The kernels from the seeds were placed in these reed bags and put under running water for three to four weeks. Once the toxins were gone the kernels were ground into a paste like dough and cooked under the hot ashes of the fire. A small grove of zamia palms still exists on the western shore of Lake Joondalup.

Extract from City of Joondalup  

tn_zamiaseedsdscf3820.jpg tn_macrozamia_seeds_dscf3817.jpg
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