Lettuce
Lactuca sativa
A cool-season latex-sap annual. Iceberg, romaine, butterhead, and leaf types are cultivar groups of one species — not separate plants. Bolts and turns bitter in heat.
GROW → HARVEST → EAT → DRY → POWDER → CAPSULE → GUMMY — forms are not equivalent. Food first.
Identity
Also called: iceberg lettuce, romaine
What it is
A cool-season latex-sap annual. Iceberg, romaine, butterhead, and leaf types are cultivar groups of one species — not separate plants. Bolts and turns bitter in heat.
From the existing encyclopedia
Meal planners keep Iceberg Lettuce on hand because it pairs with multiple herbs in the aaaLifetime encyclopedia. Rehydrate dried forms in warm water before adding to long braises for even texture. Balances with honey or dates in warm drinks when used as food sweetening. Rotate Iceberg Lettuce with other staples in weekly meal plans so pantry kits stay versatile without repeating the same flavor profile every day.
Edible portions
- leaves
- stems of some types
Absence of a portion from this list means it is not treated as food here — not that every other part is toxic.
Growing
- Climate. Cool-season annual
- Light. Full sun to light shade in heat
- Soil. Rich, even moisture, never droughted
- Planting. Successions every 1–2 weeks. Heat = shade cloth or give up until fall.
- Harvest. Leaf types cut-and-come; heads when firm but before bolt.
Processing, drying, storage
- Storage. Cold, humid. Iceberg stores longer because of density, not because it is a different species. See also Make → Storage.
Preparation and culinary uses
- Salads; cooked lettuce soups exist in some cuisines
Nutrition and compounds
- Vitamins (qualitative, well-known associations). vitamin K, vitamin A — not milligram values.
AAA interpretation Food first. These associations explain why a plant shows up in a nutrient conversation — they are not a supplement shopping list.
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
- Integrated from the existing aaaLifetime / quantum-biohack encyclopedia corpus (unique text preserved where it was not boilerplate).
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.
Internal quality class A. Strong page: distinctive plant facts plus practical growing or kitchen use.