Four sisters Inca style

This is another iteration of the three sisters, supposedly how the Incas have grown in. Taken from Toby Hemenway’s Gaia’s Garden book.

Plant		Type	Note
	Common bean Phaseolus vulgaris	Species
	Corn Zea mays	Species
	Pigweed Amaranthus retroflexus	Species
	Squash Cucurbita moschata	Species