guava
Enable an agent to identify guava plants, assess their condition and reproductive state, and choose cultivation, monitoring or containment actions appropriate to their identity and location.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
recalled by Codex without web access - no source was read
Researched by: Codex
Purpose and description
Enable an agent to identify guava plants, assess their condition and reproductive state, and choose cultivation, monitoring or containment actions appropriate to their identity and location.
Guava here denotes Psidium guajava L. (1753), a fruit-bearing shrub or small tree in the myrtle family, Myrtaceae, native to tropical America and widely cultivated for its edible berries.
It can be Gather diagnostic observations and request botanical confirmation when the guava identification is uncertain.; Track growth, flowering, fruit development and health through dated inspections.; Select propagation material with documented identity and health, subject to applicable movement restrictions.; Adjust watering, drainage, spacing or pruning using site conditions and plant response.; Investigate damaged fruit or declining foliage before choosing a pest or disease intervention.; Map seedlings beyond cultivation and determine whether monitoring or containment is warranted locally..
Distinguishing features
Treat the common name as a candidate identification: distinguish Psidium guajava from strawberry guava and other namesakes using a botanical key or expert determination.
Check the combination of opposite simple leaves, conspicuous lateral veins and peeling bark; none of these features alone establishes guava identity.
When reproductive material is available, check flower structure and fruit characters, including the persistent calyx and numerous hard seeds, against the proposed identification.
Do not use pink versus white flesh, fruit size or a nursery label alone to establish species or cultivar identity.
Separate a rooted living guava plant from its harvested fruit, and separate observations of that plant from claims about the species or a regional population.
Scope
+ Taxonomic identity and evidence distinguishing common guava from other plants called guava
+ Individual plants, cultivars, propagation histories and population membership
+ Life stages, flowering, pollination, fruit development and seedling recruitment
+ Growing conditions, plant health and cultivation decisions
+ Population origin, establishment, spread and location-specific conservation or containment context
- Harvested guava fruit as a food product, commodity or stored lot
- Juice, preserves, extracts and their processing or nutritional claims
- Other species called guava as independent taxon models
- Orchard businesses, commercial transactions and land ownership
- Independent models of guava pests, pathogens and pollinating organisms
Characteristics
- Taxonomic determination
- Accepted taxon linked to a named authority, identifier, determination date and supporting evidence Common-name ambiguity can attach the wrong cultivation, distribution or conservation information to the plant.
- Biological record level
- taxon | population | individual plant A species assessment does not describe the health or spread of an individual guava.
- Cultivar and propagation identity
- Cultivar or accession; seed-grown, cutting, air-layered, grafted or unknown; parent or source where documented Propagation history affects confidence in inherited fruit traits and cultivar labels.
- Developmental and reproductive state
- seed | seedling | juvenile | mature; vegetative, flowering, fruit-setting, fruit-bearing or senescent; date recorded Care, identification opportunities and dispersal risk depend on the plant's current stage.
- Plant dimensions
- Height and canopy spread in m; stem diameter in cm at a stated measurement position Repeated measurements support decisions about spacing, pruning and growth problems.
- Root-zone and climate exposure
- Soil pH, temperature in °C, soil moisture with method, and waterlogging duration in hours or days Site measurements help distinguish environmental stress from pests or disease.
- Fruit development
- Fruit-set status, maturity stage, drop and damage, tied to cultivar and observation date Fruit condition informs harvest timing, diagnosis and management of potential seed dispersal.
- Establishment and origin
- Origin: native, introduced or uncertain; establishment: planted, casual escape, self-sustaining or uncertain A planted orchard tree and an independently recruiting population require different actions.
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.guava-food
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 5 bundles · 9 layers · 16 findings · 25 questions.
Guava identity Resolve what the guava name denotes and connect identification evidence to the correct biological record.
Guava names can refer to different species, cultivars, plants or fruit products.
Taxon and names
Establish the intended species and its authoritative nomenclature.
Common guava determination
Record the proposed Psidium guajava identification with evidence and confidence rather than treating the registry name as a determination.
- Does vr.tr.guava denote Psidium guajava specifically, or a broader common-name or fruit sense? boundary
- Which consulted taxonomic authority supplies the accepted name, authorship, publication date and corresponding GBIF and NCBI identifiers? provenance
Plant and cultivar evidence
Tie diagnostic characters and horticultural labels to a particular plant or accession.
Diagnostic and lineage confidence
Keep species determination separate from confidence in cultivar identity and propagation lineage.
- Which observed leaf, bark, flower and fruit characters distinguish this plant from other species called guava? definition
- What nursery, accession or propagation records support its cultivar label, and was it grown from seed or propagated vegetatively? provenance
Growth and reproduction Represent guava development from establishment through flowering, fruiting and recruitment.
A guava's care needs, fruiting prospects and spread potential change with development and reproductive activity.
Establishment and growth
Track plant age evidence, structural development and propagation-related establishment.
Developmental trajectory
Distinguish documented age and propagation history from developmental stage inferred from appearance.
- When and how was this guava established, and which parts of its age or propagation history are documented? provenance
- How have height, canopy spread, stem growth and new shoots changed between dated observations? measurement
Flowers, fruit and recruitment
Connect observed flowering and fruit set to pollination context and subsequent seedling establishment.
Reproductive performance
Assess reproduction from observations without assuming identical flowering schedules or pollination performance across cultivars and sites.
- What flower sexual structures are documented, and is there evidence that separate male and female plant categories apply to this guava? definition
- When does flowering occur here, what proportion of monitored flowers sets fruit, and what pollinator activity is observed? measurement
- Do seedlings establish from fallen or dispersed fruit, and should fruit collection or recruitment monitoring change? action
Site, health and care Relate guava condition to its growing environment and evidence of injury or biological damage.
Care decisions require separating unsuitable site conditions from pest, pathogen and management effects.
Growing site fit
Record exposures and root-zone conditions that help explain establishment and growth.
Environmental stress evidence
Connect measured conditions and recent events to observed symptoms without assigning universal tolerance thresholds.
- What temperature extremes, soil moisture, drainage, soil pH and light exposure has this guava experienced? measurement
- Which locally supported changes to irrigation, drainage or placement address the observed stress? action
Damage and intervention
Distinguish symptoms, diagnoses and management responses across leaves, stems, roots and fruit.
Health diagnosis and response
Record where damage occurs, what supports its cause and how the plant responds to intervention.
- Which organs are affected, how severe and widespread is the damage, and what diagnostic evidence supports the suspected cause? measurement
- What inspection, sampling, sanitation, pruning or treatment is justified, and what follow-up observation will assess its effect? action
Range and population management Place guava occurrences in their geographic, ecological and management context.
Cultivation, conservation and containment depend on population origin and local evidence of establishment and impact.
Range and status
Separate native-range evidence, introduced occurrences and conservation assessments.
Geographic status evidence
Attach range and conservation statements to a source, geographic extent and date.
- Which sources distinguish the species' native range from its historical cultivation and introduced distribution? provenance
- Is an IUCN assessment available for the confirmed taxon, and what category, assessment year and geographic scope does it report? provenance
Escape and local action
Evaluate recruitment beyond planting sites and the actions warranted in the relevant jurisdiction.
Population spread and management
Distinguish the presence of planted guava from demonstrated self-sustaining spread and ecological effects.
- What mapped seedlings, reproductive plants and repeat surveys demonstrate persistence or expansion beyond cultivation? measurement
- What local evidence and current rules govern planting, movement, fruit disposal or removal at this site? action
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- The organism domain supports interpreting this entry as Psidium guajava, but the registry's intended sense remains unconfirmed.
- Exact native-range boundaries, taxonomy identifiers and any IUCN category and assessment year require checking; no conservation status is asserted here.
- Measurements are approximate recall-based ranges, not cultivar specifications; flowers are generally bisexual, and plants pass through seedling, juvenile and reproductive stages.
- Which of these check these first hold for the sense of guava this model covers, and on what evidence? provenance
Kinds and varieties
Recalled without web access and unsourced; every item is a lead to verify.
- White-fleshed cultivars
- Pink- or red-fleshed cultivars
- Which of these kinds and varieties hold for the sense of guava this model covers, and on what evidence? provenance
Identifiers and schemes
Recalled without web access and unsourced; every item is a lead to verify.
- Botanical scientific name - Psidium guajava L. - L. identifies Linnaeus as the naming authority; the name was published in 1753.
- GBIF taxon key - Numeric taxon identifier - The exact identifier and accepted taxon record require verification.
- NCBI Taxonomy ID - Numeric taxonomic identifier - The exact identifier requires verification.
- Which of these identifiers and schemes hold for the sense of guava this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Fruit eaten fresh
- Production of juice, purée and nectar
- Production of jam, jelly and guava paste
- Cultivation in orchards and home gardens
- Which of these real-world use hold for the sense of guava this model covers, and on what evidence? provenance
Typical measurements
Recalled without web access and unsourced; every item is a lead to verify.
- Mature plant height - Approximately 3-10 - m
- Fruit length - Approximately 4-12, depending on cultivar - cm
- Which of these typical measurements hold for the sense of guava this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Fruit-fly infestation can damage fruit and restrict movement of fresh produce.
- Anthracnose can cause fruit lesions and postharvest decay.
- Ripe fruit softens rapidly and bruises readily during handling.
- Frost can injure plants, especially young growth.
- Escaped plants can become invasive in suitable tropical and subtropical habitats.
- Which of these failure modes and hazards hold for the sense of guava this model covers, and on what evidence? provenance
Regional variation
Recalled without web access and unsourced; every item is a lead to verify.
- Cultivated and naturalized widely across tropical and subtropical regions beyond its American origin.
- Cultivars differ in flesh colour, seediness, acidity, sweetness and suitability for fresh consumption or processing.
- Local names containing 'guava' may refer to other species, so the common name alone does not establish identity.
- Which of these regional variation hold for the sense of guava this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- Guava fruit - The harvested berry is an organ and food product; this entry describes the plant species.
- Strawberry guava - Usually denotes Psidium cattleyanum, a distinct species rather than a cultivar of Psidium guajava.
- Pineapple guava - Denotes Acca sellowiana, a member of a different genus in Myrtaceae.
- Guava population - A population comprises plants in a particular area; the species encompasses populations across its range.
- Individual guava tree - An individual is one organism with its own age and condition, rather than the taxon.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of guava this model covers, and on what evidence? provenance
What the second pass must settle
- Does the registry intend the common guava species, its living plants generally, or the edible fruit sense?
- What accepted authorship, nomenclatural date, GBIF identifier and NCBI taxonomy identifier should anchor the confirmed taxon?
- How do authoritative sources delimit native range given guava's cultivation history, and what IUCN assessment and year are available?
- Which cultivar-specific and regional evidence establishes flowering patterns, pollination requirements, fruit maturity indicators and environmental tolerances?
- Which jurisdictions and habitats require special attention to guava escape, ecological impacts, planting restrictions or movement controls?