Which plants were important food sources for nomads of the Gran Chaco?

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distribution of aboriginal South American and circum-Caribbean cultural groups — South American nomad Distribution of aboriginal South American and circum-Caribbean cultural groups.

The nomadic peoples of the Gran Chaco relied primarily on plant-based diets for their subsistence. Key food sources included:

Pod-bearing thorny bushes: The algarrobo was a particularly important source of food.1
Local trees: Various native trees provided essential sustenance for the population.1
Wild rice: This was also available and consumed by the nomadic groups.1

In addition to these plant sources, those living near rivers supplemented their diet with fish, while honey and larvae were also eaten. While some groups hunted animals like guanaco and rhea, the reliance on plant foods remained a defining characteristic of their traditional culture, distinguishing them from the primarily hunting-focused nomads of the southern regions.1