{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.camellia-sinensis","code":"thing-q101815","url":"https://ver.cy/models/thing/q101815/","name":"Camellia sinensis","alternateNames":["Gisovu Tea"],"kind":"thing","status":"published","version":"0.1.0-research.1","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.LIV"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"Camellia sinensis is a species of evergreen shrub or small tree in the family Theaceae whose young shoots are the botanical source of true tea; species identification depends on diagnostic botanical characters rather than cultivated leaf chemistry or harvesting practices alone.","purpose":"Enable an AI agent to recognise a Camellia sinensis plant or accession, judge its condition and suitability for an intended use, and select actions supported by its identity, growth state and cultivation history.","scope":{"in":["Species identification, accession provenance and uncertainty about cultivar, variety or hybrid status","Developmental stage, shoot growth, canopy structure and root condition","Root-zone and microclimate conditions experienced by the plant","Plant stress, injury, pests and disease evidence","Suitability of particular shoots for a specified tea-leaf harvest","Propagation material, method and establishment outcomes"],"out":["Manufacture, grading, storage and brewing of harvested tea","Chemical composition and safety certification of finished beverages","Human health effects of tea consumption","Farm business management, labour allocation and commodity trading","Regional ecosystems and soil bodies except through their relationship to the plant"],"boundaries":[]},"distinguishingFeatures":["Test a claimed tea-plant identity against an authenticated Camellia sinensis reference; a common name or nursery label alone does not resolve confusion with ornamental camellias.","Compare mature leaves for arrangement, margin serration, shape, venation and surface characters using a botanical identification key; record when a vegetative specimen cannot support a confident determination.","When flowers or fruit are available, compare their diagnostic characters with the key to separate Camellia sinensis from other Camellia species.","Separate species identification from cultivar, botanical variety and hybrid identification; test the latter against documented accession provenance and suitable reference evidence rather than leaf size alone."],"structure":{"bundles":[{"id":"tea-plant-identity","name":"Tea-plant identity","description":"Evidence that the specimen belongs to Camellia sinensis and the limits of any finer identification.","layers":[{"id":"species-determination","name":"Species determination","description":"Diagnostic observations and comparison with authenticated botanical references.","findings":[{"id":"diagnostic-character-evidence","name":"Diagnostic character evidence","description":"Record the leaf and available reproductive characters supporting or contradicting the proposed identification.","questions":[{"text":"Which observed leaf, flower or fruit characters distinguish this specimen from the other Camellia species considered in the identification key?","id":"diagnostic-character-evidence-q01","kind":"definition"},{"text":"Which authenticated reference or expert determination supports the identification, and what characters were unavailable?","id":"diagnostic-character-evidence-q02","kind":"provenance"}]}]},{"id":"accession-and-lineage","name":"Accession and lineage","description":"Source history and evidence for cultivar, botanical variety or hybrid assignments.","findings":[{"id":"assignment-confidence","name":"Assignment confidence","description":"Keep documented lineage separate from labels or appearance-based guesses.","questions":[{"text":"Which source plant, seed lot or nursery accession does this plant descend from?","id":"assignment-confidence-q01","kind":"provenance"},{"text":"Does the evidence justify a cultivar or botanical variety assignment, or only identification at species level?","id":"assignment-confidence-q02","kind":"boundary"}]}]}]},{"id":"shoot-growth-and-canopy","name":"Shoot growth and canopy","description":"The plant's shoot cycle, retained foliage and response to canopy management.","layers":[{"id":"bud-and-shoot-cycle","name":"Bud and shoot cycle","description":"Observed transitions between inactive buds, expanding shoots and hardened growth.","findings":[{"id":"current-shoot-activity","name":"Current shoot activity","description":"Establish the extent and timing of active growth without mistaking every pause for stress.","questions":[{"text":"What proportion of sampled shoots have inactive buds, expanding leaves or hardened growth?","id":"current-shoot-activity-q01","kind":"measurement"},{"text":"Does the current growth pause match this accession's recorded seasonal pattern, or require investigation?","id":"current-shoot-activity-q02","kind":"boundary"}]}]},{"id":"canopy-management-response","name":"Canopy management response","description":"Training form, cutting history and subsequent regrowth.","findings":[{"id":"retained-canopy-and-recovery","name":"Retained canopy and recovery","description":"Relate proposed pruning or picking to remaining foliage and observed recovery.","questions":[{"text":"When and how severely was this plant last pruned or picked, and what regrowth followed?","id":"retained-canopy-and-recovery-q01","kind":"provenance"},{"text":"What evidence supports further cutting now, and what recovery condition would justify postponement?","id":"retained-canopy-and-recovery-q02","kind":"action"}]}]}]},{"id":"growing-conditions-and-health","name":"Growing conditions and health","description":"Root-zone and exposure conditions interpreted alongside symptoms and plant performance.","layers":[{"id":"root-zone-and-exposure","name":"Root zone and exposure","description":"Measured growing conditions and their relationship to shoot activity.","findings":[{"id":"local-growing-condition-fit","name":"Local growing-condition fit","description":"Assess acidity, moisture, drainage, temperature and light against evidence applicable to the accession and setting.","questions":[{"text":"What root-zone pH, water condition and temperature or light extremes occurred during the period of altered shoot growth?","id":"local-growing-condition-fit-q01","kind":"measurement"},{"text":"Which locally supported adjustment is justified, and what plant response would show whether it helped?","id":"local-growing-condition-fit-q02","kind":"action"}]}]},{"id":"symptoms-and-causal-evidence","name":"Symptoms and causal evidence","description":"Location, progression and diagnostic support for damage affecting the tea plant.","findings":[{"id":"cause-discrimination","name":"Cause discrimination","description":"Separate symptoms from conclusions about nutrient problems, environmental injury, pests or pathogens.","questions":[{"text":"Are symptoms concentrated on young harvest shoots, older leaves, stems or roots, and how quickly are they spreading?","id":"cause-discrimination-q01","kind":"measurement"},{"text":"What inspection, sample or diagnostic result would distinguish the leading explanations before treatment?","id":"cause-discrimination-q02","kind":"action"}]}]}]},{"id":"tea-leaf-harvest-readiness","name":"Tea-leaf harvest readiness","description":"Suitability of attached shoots for a specified picking purpose and permission to harvest them.","layers":[{"id":"picking-standard","name":"Picking standard","description":"The intended bud-and-leaf selection and the shoots that presently meet it.","findings":[{"id":"eligible-shoots","name":"Eligible shoots","description":"Judge harvestable material against an explicit standard rather than a generic ready state.","questions":[{"text":"What bud-and-leaf combination, leaf maturity and damage tolerance does the intended picking standard require?","id":"eligible-shoots-q01","kind":"definition"},{"text":"How many shoots meet that standard, and what sampling area and date support the estimate?","id":"eligible-shoots-q02","kind":"measurement"}]}]},{"id":"harvest-release","name":"Harvest release","description":"Conditions that permit, limit or defer picking from the living plant.","findings":[{"id":"picking-permission","name":"Picking permission","description":"Combine plant recovery evidence with treatment and contamination restrictions.","questions":[{"text":"Which treatment or contamination records constrain harvesting these shoots for the intended use?","id":"picking-permission-q01","kind":"provenance"},{"text":"Should picking proceed, be reduced or be deferred, given shoot availability, retained foliage and unresolved restrictions?","id":"picking-permission-q02","kind":"action"}]}]}]},{"id":"propagation-and-continuity","name":"Propagation and continuity","description":"Selection, origin and establishment of new tea plants.","layers":[{"id":"propagation-source","name":"Propagation source","description":"Source-plant suitability and the identity claim intended for resulting plants.","findings":[{"id":"material-and-identity-intent","name":"Material and identity intent","description":"Record why seed or vegetative material was selected and what identity it can support.","questions":[{"text":"Is propagation intended to continue a selected cultivar or produce seedlings, and what method supports that intention?","id":"material-and-identity-intent-q01","kind":"action"},{"text":"Which source plant supplied the material, and what identity and health evidence accompanied collection?","id":"material-and-identity-intent-q02","kind":"provenance"}]}]},{"id":"new-plant-establishment","name":"New-plant establishment","description":"Evidence that propagated material has become a viable plant.","findings":[{"id":"establishment-outcome","name":"Establishment outcome","description":"Distinguish initial germination or rooting from sustained independent growth.","questions":[{"text":"What root development, survival and new shoot growth are present at each establishment check?","id":"establishment-outcome-q01","kind":"measurement"},{"text":"What observed condition justifies transplanting or reducing propagation protection for this material?","id":"establishment-outcome-q02","kind":"action"}]}]}]},{"id":"evidence-and-external-alignment","name":"Evidence and external alignment","description":"What the world already says about this thing, gathered so the model can be checked against it.","layers":[{"id":"reported-evidence","name":"Reported evidence","description":"Findings from the breadth pass, kept separate from the structural claims.","findings":[{"id":"evidence-kinds","name":"Kinds and varieties","description":"Reported by the breadth pass; each item needs checking against its source before it becomes normative.","questions":[{"text":"Which of these kinds and varieties hold for the sense of Camellia sinensis this model covers, and on what evidence?","id":"evidence-kinds-q01","kind":"provenance"}]},{"id":"evidence-identifiers","name":"Identifiers and schemes","description":"Reported by the breadth pass; each item needs checking against its source before it becomes normative.","questions":[{"text":"Which of these identifiers and schemes hold for the sense of Camellia sinensis this model covers, and on what evidence?","id":"evidence-identifiers-q01","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Identify tea plants and report leaf, flush and pest condition to the grower.","Describe tea grades, origin and processing from labels and records."],"mustNot":["Misrepresent the origin, grade or protected name of a tea.","Apply pesticides to tea bushes beyond the label or residue limits.","Present tea or its extracts as a cure for disease.","Hide labour or child labour abuses in a supply chain it reports on."],"requiresHuman":["Spraying or replanting decisions on a tea estate.","Certifying a tea for organic or fair-trade claims."]},"ethics":{"considerations":["Tea picking is low-paid work with a history of exploitation on estates.","Smallholders depend on fair prices and honest grading."],"affectedParties":["Tea pickers and estate workers","Smallholder growers","Consumers"]},"owners":{"steward":"The grower or estate; protected origins are held by their registering bodies.","roles":[],"masterSystems":["Geographical indication registers"]},"relations":[{"target":"Q1151696","type":"parent","note":"registry parent class"},{"target":"Q11992872","type":"parent","note":"registry parent class"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.camellia-sinensis","Wikidata: Q101815 (https://www.wikidata.org/wiki/Q101815)"]},"properties":{"applicability":"required","items":["Taxonomic determination: Camellia sinensis confirmed; provisionally identified; unresolved Camellia; conflicting identification","Accession and planting-material provenance: Links to source plant, seed lot, nursery record, accession record and identification evidence","Cultivar or botanical variety assignment: Recorded name with evidence and confidence; unknown; disputed","Shoot development: Bud inactive; bud swelling; shoot extending; leaves expanding; shoot hardened; uncertain","Harvestable shoot density: Shoots per square metre of plucking surface meeting an explicitly stated bud-and-leaf standard","Canopy and pruning history: Canopy dimensions in centimetres; training form; dated pruning severity; recovery observations","Root-zone acidity: pH with sampling depth, date, medium and measurement method","Root-zone water condition: Volumetric water content in percent or matric potential in kilopascals, with method and duration of saturation","Temperature and light exposure: Degrees Celsius and photosynthetic photon flux density in micromoles per square metre per second, with location and observation period","Damage and symptom distribution: Affected organ, leaf age, symptom type, proportion affected, onset and progression","Harvest restrictions: Links to treatment records, applicable product instructions, contamination evidence and release conditions","Propagation establishment: Seed or cutting collected; germinating or rooting; established; failed; outcome unknown"]},"recognition":{"applicability":"required","items":["Glossy, dark green, finely serrated evergreen leaves.","Bushes kept pruned to a flat waist-high plucking table in rows on slopes.","Small white flowers with many yellow stamens."]},"capabilities":{"applicability":"required","items":["Document diagnostic plant characters and seek a stronger identification when evidence conflicts.","Adjust irrigation, drainage, shading or root-zone management using measured conditions and locally supported guidance.","Select shoots for a declared tea-leaf picking standard when plant recovery and harvest restrictions permit.","Train or prune the canopy according to its intended form and observed capacity to recover.","Collect traceable seed or cuttings and assess propagation success without assuming offspring retain a cultivar identity.","Inspect, sample or isolate affected plants while distinguishing suspected causes from confirmed diagnoses."]},"hazards":{"applicability":"required","items":["Pesticide residues above legal limits in made tea.","Mislabelled origin or adulterated tea.","Slope erosion on cleared plantations."]},"interfaces":{"applicability":"required","items":["ISO 3720, Black tea - Definition and basic requirements, International Organization for Standardization."]},"context":{"applicability":"required","items":["This evergreen plant is grown in tea plantations, smallholdings and research collections, principally for harvesting young shoots for tea production.","Its identity, cultivar, growing conditions and harvest history matter when assessing plant health, selecting propagation material or determining suitability for processing."]}},"sources":[{"title":"Wikidata item Q101815: Camellia sinensis","url":"https://www.wikidata.org/wiki/Q101815","note":"identity and sense of the item"},{"title":"Wikipedia: Camellia sinensis","url":"https://en.wikipedia.org/wiki/Camellia_sinensis","note":"general description of the item"}],"openQuestions":["Which authoritative botanical key and authenticated reference material should define the diagnostic tests for Camellia sinensis and its locally relevant lookalikes?","What evidence is sufficient to distinguish botanical varieties, named cultivars and possible hybrids when accession provenance is incomplete?","Which accession-specific and local thresholds for acidity, moisture, temperature and light are supported well enough to guide intervention?","Which picking and pruning limits preserve recovery across plant ages, cultivation systems and intended tea products?","Which locally relevant pest diagnostics, treatment restrictions and contamination assessments must be linked before harvest decisions can be supported?"],"resources":{"spec":"/models/things/publications/thing-q101815/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q101815/spec.json"],"providers":["Codex","Grok"],"researchStatus":"unreviewed","generatedAt":"2026-09-07T13:55:05Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T12:16:28+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}