Chestnut

Identity

What it is

A starchy nut, low-oil compared with walnuts. European (C. sativa), Chinese (C. mollissima), and hybrids exist; American chestnut (C. dentata) was blighted. Horse chestnut (Aesculus) is toxic and not a Castanea.

Edible portions

• seeds, cooked

Absence of a portion from this list means it is not treated as food here — not that every other part is toxic.

Growing

• Climate. 5–8 many Chinese/hybrids
• Light. Full sun
• Soil. Well-drained, acidic-leaning
• Planting. Usually need a pollenizer. Burrs are spiny.
• Harvest. When burrs open; refrigerate — they are perishable ‘wet’ nuts.

Preparation and culinary uses

• Roast, puree, stuffing

Nutrition and compounds

• Vitamins (qualitative, well-known associations). vitamin C — not milligram values.
• Minerals (qualitative). starch/carbs as the calorie source — not an oily nut — look up current USDA FoodData Central entries for numbers.

• AAA interpretation Food first. These associations explain why a plant shows up in a nutrient conversation — they are not a supplement shopping list.

Safety

• Do not eat horse chestnut (Aesculus). Different tree, toxic seeds.

Related knowledge

• Food source of Vitamin C
• Commonly confused with Horse chestnut
• Related to American beech
• Related to Red oak
• Related to White oak
• Related to Plant directory

Next steps

Sources

• USDA PLANTS Database — taxonomy and range (verify current entries)
• USDA FoodData Central — nutrient profiles for foods (verify current entries; this page does not invent milligrams)
• State cooperative extension growing guides — verify for your region

Honest incompleteness is preferred to fabricated completeness. If a section is missing, no record for it is attached here — not a claim that the plant lacks that characteristic, and not that it was omitted as a secret.