Plants, cultivation and a varied food economy

Finding a crop is the beginning of a question

Plant remains can tell us about food, fuel, building materials and the environment. They do not arrive in a deposit with their original use written on them. Researchers consider identification, preservation, context and repetition across samples. A charred grain can support an interpretation, but its meaning becomes stronger when related evidence shows how plants were grown, processed or brought into a settlement.

The 2018 agricultural origins study brings together crop remains, chaff, phytoliths and associated plants. At Boncuklu, cultivation was a small contribution within an economy still strongly connected to wild resources. The paper discusses glume wheats, lentils and peas rather than a landscape already committed to large-scale mixed farming.

Cultivation and domestication are different

Cultivation refers to people’s practices of growing plants. Domestication refers to changes in the plants themselves across generations. These processes can overlap without occurring at exactly the same time. The presence of a cultivated plant should therefore not be used to assert a particular domestication process unless the evidence supports it.

The project’s expanded chronology adds another caution. Evidence associated with the familiar 8300–7800 cal BCE sequence cannot simply be projected back to the earliest occupation. The 2023 review discusses the possibility of cultivation before 8300 while noting the need for continuing stratigraphic and archaeobotanical study. Keep that question open rather than assigning all early residents the same farming practices.

More than an unfinished farming economy

A mixed way of obtaining food need not be a failed version of something later. Hunting, fishing, gathering and limited cultivation could form a durable strategy. Different resources require different knowledge and work. Their combination encourages questions about seasonality, risk, labour and the social importance of particular foods, rather than simply measuring progress towards an assumed destination.

How to read the evidence

• Ask whether a plant identification concerns food, fuel or another use.
• Check whether the claim concerns one sample or a recurring pattern.
• Separate wild, cultivated and morphologically domesticated categories.
• Keep the sample’s date and archaeological context visible.

Continue with the wetland landscape and our classroom activity. They show why plant evidence becomes more useful when it is connected to other traces.

Follow the route into a deposit

For any plant sample, consider how the remains might have reached the excavated context. Food preparation, burning, disposal, building work or later disturbance can leave different signatures. The aim is not to choose an imaginative story for each seed, but to test patterns across well-recorded material. This also explains why recovery methods matter: tiny remains can be missed when only conspicuous objects are collected. Ask about sampling before comparing the apparent abundance of plants between deposits or sites.

Build an evidence chain before calling a grain agriculture

The 2018 agricultural-origins paper combines several forms of evidence when interpreting cultivation. A single charred grain should not be made to carry the whole argument. Use the following fictional sample card to distinguish an observation, an interpretation and evidence still needed.

1. Record identification, preservation, context and recovery method. Keep an uncertain identification uncertain; burning alone does not identify the crop or its use.
2. Check the deposit’s formation and date. A grain in later fill is not automatically evidence for the occupation beneath it.
3. Look for relevant patterns across comparable samples and other evidence, such as processing remains and associated plants. Do not treat absence in an unexamined sample as a measured absence.
4. State a bounded interpretation and an alternative route into the deposit. Cultivation practices and plant domestication remain different questions.

Invented card DEMO-S1: one charred grain, identification provisional, recovered from mixed fill; the fill’s relationship to an earlier floor is unresolved. Supported: a charred plant remain was recovered from that fill. Not supported: residents of the earlier floor cultivated a domesticated crop. Next evidence: confirm identification, inspect the stratigraphic record and compare appropriately recovered samples. Do not assign a Boncuklu specimen number to this exercise.

Reusable matrix: observation __; context/date __; recovery __; interpretation __; alternative __; corroboration __; missing evidence __; claim allowed __. The diagram is a conceptual reading aid, not a reconstructed find or section. Preserve the paper’s 2018 date and authorship; this sample and procedure are new teaching material.

Source: www.pnas.org.