Plant Systemic Intelligence Without a Central Organ
Year: 2026
Type: preprint
Abstract: Description Plant Systemic Intelligence Without a Central Organ is a falsifiable conceptual working paper that develops a framework for understanding plant intelligence as distributed, resource-efficient, and state-dependent regulation of living processes. The paper does not attribute consciousness, intentionality, or neural cognition to plants. Instead, it proposes that plants can be understood as living systems that process environmental stimuli through decentralized cellular, physiological, and ecological mechanisms. The framework synthesizes existing findings from plant physiology, stress priming, systemic signaling, plant memory research, and mycorrhizal studies. It distinguishes between instantaneous signal traces, medium-term cellular state changes, and long-term priming or structural memory. It further considers the rhizosphere, mycorrhizae, hyphae, arbuscules, and soil–root–fungal interfaces as external ecological pre-structures that may influence plant response capacity. A central claim of the paper is that plant environmental information should not be understood as a stored copy of a stimulus, but as an altered response function. A prior stimulus is considered functionally relevant only if it produces a measurable state change that persists beyond the immediate stimulus and alters a later response. The paper introduces the concept of an activation range to describe the conditions under which subsequent stimuli may reactivate prior preconditioning. The contribution of the paper lies in organizing heterogeneous findings into a testable conceptual structure. It proposes falsification criteria, operational distinctions, and measurable parameters for evaluating claims about plant information processing, memory, readout, mycorrhiza-mediated effects, and minimal regulation. The work is intended as a theoretical and methodological framework, not as an experimental primary study or a claim of plant consciousness. Update June 2026 Plant Systemic Intelligence Without a Central Organ This project develops a falsifiable conceptual framework for understanding plant systemic intelligence without attributing consciousness, thought, intention, or animal-like cognition to plants. The main working paper, Plant Systemic Intelligence Without a Central Organ, describes plant intelligence as distributed, minimal, state-dependent, and cost-sensitive regulation. Plants are understood as living systems that can perceive environmental conditions, alter internal states, integrate prior exposure, and generate functionally appropriate responses without a nervous system or central control organ. The framework distinguishes between instantaneous signal traces, medium-term cellular state changes, long-term priming or structural memory, readout, activation range, and minimal regulation. Its central claim is not that plants think, but that plant responses can be described as non-cognitive systemic regulation. Supplementary Working Paper S1 The supplementary working paper Chemical–Physical Coupling as the Operational Basis of Non-Cognitive Plant Regulation extends the main framework by addressing the mechanistic question: How can a plant system without cognition, a nervous system, or a central decision organ produce functionally appropriate responses? The supplement models: DNA as a biological possibility space, chemistry as the operational medium of signaling and response, physics as activation, transport, rate, and threshold logic, evolution as a non-teleological viability filter between underreaction and overreaction, plant regulation as forward- and reciprocally computable. The supplement is not a separate theory of plant consciousness. It is a mechanistic appendix to the main framework. Its purpose is to make the material basis of distributed, minimal, cost-sensitive plant regulation more explicit, testable, and mathematically operationalizable. Scientific Position This project rejects two extremes: Anthropomorphic exaggeration: plants are not treated as conscious, thinking, or intentional agents. Overly simple reduction: plants are not treated as passive linear stimulus–response machines. Instead, the project proposes a middle position: Apparent plant intelligence can be understood as non-cognitive, chemically and physically mediated, evolutionarily calibrated regulation. Falsifiability The framework is designed to be Popperian in structure. It defines conditions under which central model assumptions would be weakened or falsified, including: no measurable state change after defined stimuli, no altered response after prior exposure, no threshold behavior between weak and relevant stimuli, no cost difference between underreaction and overreaction, no predictive advantage over simple stimulus–response models, no possibility of reconstructing plausible system states from observed responses. Research Use The project is intended as a theoretical and methodological foundation for future empirical work in plant physiology, stress priming, plant signaling, horticulture, agriculture, biophysics, and systems biology. Its value lies not in claiming a completed proof, but in offering a structured, falsifiable, and mathematically expressible framework for studying how plants regulate life processes without cognition.
Author: Schaefer, Rudolf W.
Language: English
Subfield: Plant Science
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W7162209468
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