![Chestnuts from Great Smoky Mountains, 1910.](https://pbs.twimg.com/media/D4XSn9vWAAAcx9Z.jpg)
![American chestnuts at harvest last fall, Amherst, MA](https://pbs.twimg.com/media/D4XS5E4WwAEX388.jpg)
![](https://pbs.twimg.com/media/D4XTL57WwAEIqqR.jpg)
![You don't even have to like chestnuts, although I think they're yummy.](https://pbs.twimg.com/media/D4XTreMWwAADb1q.jpg)
![](https://pbs.twimg.com/media/D4XUHPTX4AcluM3.jpg)
![Perennial grass vs. wheat--note the difference in root systems.](https://pbs.twimg.com/media/D4XUsmQX4AA8EJH.jpg)
![Chart from Shi et al. 2018, metanalaysis of tree-farming systems.](https://pbs.twimg.com/media/D4XU9IRW0AEDvoZ.jpg)
![American chestnut](https://pbs.twimg.com/media/D4XVRpSWsAILUSc.jpg)
16/16 fin
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