🧅 Camas! 🥔
Have you ever seen a Pacific Northwest meadow in mid-spring covered in a sea of spire-like purpley-blue flowers? There’s a good chance that’s native camas, which springs from an onion/potato-tasting bulb that was once abundant in the region and a staple of many Native American diets.
Physical evidence of the bulb being used as a food source goes back at least 8000 years. But anthropologists at Oregon State University and the University of Oregon examined camas bulbs found at 11 archeological sites in the Willamette Valley and found evidence that a significant shift happened ~3500 years ago.
The researchers suggest this is when early Americans transitioned from opportunistic gathering of camas to more active stewardship to ensure future abundance.
This timing also roughly coincides with a shift towards a more stable climate and evidence of increased low-magnitude fires on the landscape, which scientists believe were intentionally set to create and maintain habitat for useful plants and animals. 🧅 🥔
Learn more https://www.opb.org/science_environment/
📹 by Jes Burns, OPB
✂️ by Cameron Nielsen, OPB
🎧 from Audio Network
For more stories like this visit OPB online at https://opb.org
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