Katniss / Wapato / Sagittaria Latifolia

Nutrition per gram: dry weight

Calories	Protein	Carbs	Fats
3.6	.16g	0.8g	n/a

Yield per area: 350g dry weight / square meter

350 grams x 3.6 calories = 1,260 calories / square meter

4046 square meters in acre

1,260 calories / square meter x 4046 square meters in acre =

5 million calories / acre

Source:

https://pdxscholar.library.pdx.edu/cgi/viewcontent.cgi?article=7398&context=open_access_etds

Sunchoke / Jerusalem Artichoke / Helianthus tuberosus

Nutrition per 100 gram: fresh tubers

Calories	Protein	Carbs	Fats
73	2g	17.4	0.01g

Yield per area: 29 tons / acre (1)

100g -> 1g = .73 calories / 1 g

453.5 grams in pound

.73 calories x 453.5g = 331 calories

2,000 lbs in ton

331 calories * 2,000lbs = 662,000

662,000 cals / ton * 29 tons = 19,198,000

19 million calories / acre (uncooked)

Nutrition per 100 gram: cooked tubers

Inulin is a complex fiber which is converted into sucrose after a long cooktime.

10-22g of inulin per 100g of sunchoke. Let’s assume 15g.

Calories	Protein	Carbs	Fats
73 + (3.87*32.4) = 125.388	2g	17.4+15 = 32.4	0.01g

125 cals / 100g. 1.25 cals / 1g

1.25 calories x 453.5g = 567 calories / 1lb

2,000 lbs in ton

567 calories * 2,000lbs = 1,134,000

1,134,000 calories / ton x 29 tons = 32,886,000 cals / acre

32.8 Million calories / acre (cooked)

Sources:

https://horticulture.oregonstate.edu/oregon-vegetables/artichoke-jerusalem

https://fdc.nal.usda.gov/fdc-app.html#/food-details/169236/nutrients

https://www.sciencedirect.com/science/article/abs/pii/S2212619821000218

(no citation for inulin conversion, I asked a chemist)

American Persimmon

Nutrition per 100g

Calories	Protein	Carbs	Fats
127	.8g	33.5g	.4g

1.27 cals / g

1.27 calories x 453.5g / pound = 576 calories / pound

4387 lbs estimated annual harvest per acre

576 calories /lbs x 4387 lbs /acre = 2,526,912

2.5 Million Calories / Acre

sources:

https://fdc.nal.usda.gov/fdc-app.html#/food-details/169943/nutrients

https://ethnobotanyjournal.org/index.php/era/article/view/3317/1467

Hopniss / Ground nut / Apios americana

https://hort.purdue.edu/newcrop/duke_energy/Apios_americana.html