Morus alba
Enable an agent to recognise Morus alba, distinguish species-level claims from observations of particular trees or populations, and make evidence-based cultivation, monitoring and management decisions.
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 recognise Morus alba, distinguish species-level claims from observations of particular trees or populations, and make evidence-based cultivation, monitoring and management decisions.
Morus alba L. (1753), commonly called white mulberry, is a deciduous tree species in the family Moraceae, native to China and widely cultivated and naturalized elsewhere, notably as a source of leaves for silkworm rearing.
It can be Guide collection of leaf, flower, fruit and provenance evidence for identification.; Link a tree or population observation to the species while retaining cultivar and uncertainty annotations.; Schedule repeat observations of flowering, fruiting, recruitment and condition.; Assess a proposed planting or leaf-harvest use against site conditions, plant identity and local constraints.; Prioritize expert review where lookalikes or suspected hybrids make intervention uncertain.; Compare retention, cultivation, containment or removal options using local evidence and follow-up observations..
Distinguishing features
Resolve the full botanical name: Morus alba L., published in 1753, is an accepted species in Moraceae; a common name or an unqualified nursery label is insufficient. [Kew POWO](https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:30051955-2)
Examine pistillate flowers where available: the Flora of China treatment describes an absent style and divergent, papillose stigma branches; compare these against the applicable Morus key. [Flora of China](https://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200006379)
Do not reject an identification because ripe fruit is dark: the Flora of China treatment includes blackish-purple mature fruit in M. alba var. alba. [Flora of China](https://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200006379)
Compare multiple leaves and reproductive structures with a regional key for M. rubra, M. nigra and other local lookalikes; record conflicting characters as unresolved identification or suspected hybrid ancestry rather than forcing a species assignment.
Scope
+ Accepted taxonomic identity, authority, external identifiers and identification evidence
+ Morphological variation and boundaries with other mulberries and suspected hybrids
+ Life stages, reproductive expression, seasonal development and tree condition
+ Native versus introduced occurrence, habitat and local population establishment
+ Cultivation purposes, ecological effects and geographically qualified management decisions
- Other Morus species and hybrids as independently defined taxa
- Silkworm biology and the complete silk-production process
- Harvested mulberry fruit, leaf products, timber and extracts as commodities
- Medical efficacy or dosing of mulberry preparations
- General orchard operations, land ownership and regional ecosystem models
Characteristics
- Taxonomic concept and authority
- Morus alba L.; Moraceae; selected taxonomic reference and version Keeps observations attached to a defined species concept when references differ in synonym or infraspecific treatment.
- External taxonomic identifiers
- NCBI Taxonomy: 3498; GBIF identifier pending direct verification Supports record matching without treating molecular-database classification as nomenclatural authority. [NCBI Taxonomy](https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?id=3498)
- Observation subject
- Species concept; population; individual tree; specimen; cultivated clone Prevents a tree's condition or a plantation's abundance from becoming a species-wide claim.
- Identification confidence
- Confirmed; provisional; unresolved; suspected hybrid, with evidence and determiner Controls whether an agent can proceed with species-specific management.
- Leaf and reproductive characters
- Leaf lobing, surface texture and hair distribution; style and stigma characters; mature fruit appearance Provides a repeatable comparison with botanical keys while preserving variation among shoots and developmental stages.
- Development and reproductive expression
- Seedling; juvenile; reproductive adult; senescent; observed staminate, pistillate, mixed or undetermined flowering Separates maturity and observed flower expression from unsupported assumptions about sex or fruitlessness.
- Tree dimensions and condition
- Height and crown spread in m; stem diameter in cm with measurement position; crown dieback in percent Supports longitudinal assessment of a particular tree, including the effects of pruning or harvesting.
- Occurrence origin and establishment
- Native; planted introduction; escaped; naturalized; uncertain, qualified by place and evidence Separates presence from self-sustaining establishment and from demonstrated ecological impact.
- Conservation and management assessments
- Assessment authority, category, assessment year, geographical scope and applicable local rules Keeps species conservation status distinct from local invasion assessments and permissions.
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 6 bundles · 11 layers · 19 findings · 29 questions.
Taxonomic identity Anchor the registry entry to a named botanical concept and distinguish that concept from its observed instances.
Mulberry names, cultivated selections and database mappings must resolve to a defensible species boundary.
Name and reference
Establish the accepted name and the references governing its interpretation.
Accepted name and identifiers
Record authority, original publication, reference version and verified identifier mappings.
- Which taxonomic reference defines Morus alba L. for this model, including its treatment of synonyms and varieties? definition
- Which directly inspected GBIF and NCBI records correspond to that concept, and when were the mappings checked? provenance
Species and instances
Separate the species from populations, trees, vouchers and cultivated selections.
Subject and cultivar boundary
Attach each observation to its actual subject and retain cultivar or propagation history without creating an unsupported registry split.
- Does this claim concern the whole species, a local population, an individual tree or a cultivated clone? boundary
- What voucher, accession or nursery record supports the tree's identification and any cultivar label? provenance
Mulberry identification Specify the evidence needed to distinguish M. alba from other mulberries despite variable appearance.
Common names, leaf outlines and fruit colour alone can leave consequential identification uncertainty.
Observable characters
Collect comparable vegetative and reproductive observations.
Character combination
Evaluate a combination of leaf surfaces, hair distribution, flowers and mature fruit against an appropriate botanical key.
- Which leaf and floral characters separate this specimen from the Morus species present in the region? measurement
- Were several shoots and developmental stages examined, and was fruit maturity recorded before using colour as evidence? provenance
Lookalikes and hybrids
Handle ambiguous specimens and possible mixed ancestry explicitly.
Ambiguous assignment
Set the evidence threshold for accepting M. alba or referring the specimen for specialist determination.
- Do observed characters support M. alba consistently, or leave M. rubra, M. nigra or hybrid ancestry unresolved? boundary
- What additional voucher material, expert examination or validated genetic evidence is needed before species-specific intervention? action
Development and condition Assess the developmental, reproductive and physical state of an observed mulberry tree.
A tree's age, seasonal state and management history affect what its foliage, flowers and fruit can establish.
Life stage and flowering
Distinguish maturity, seasonal events and observed reproductive expression.
Reproductive observation
Record flower types and fruit set across dated observations; do not infer a permanent reproductive category from one fruitless visit.
- What life stage and flowering expression were observed, on which branches and dates? measurement
- Does missing fruit reflect the observation season, immaturity, documented cultivar traits or an unresolved cause? boundary
Growth and damage
Interpret tree condition alongside pruning, leaf collection and site history.
Condition with management history
Track crown development, stem condition and symptoms without equating managed form with poor health.
- How have crown dimensions, shoot growth and dieback changed since the previous observation? measurement
- What pruning, leaf harvesting or site disturbance could explain the observed condition, and what follow-up is justified? action
Range and establishment Place occurrences within a sourced biogeographic and local establishment context.
A cultivated tree, a reproducing introduced population and a native population require different interpretations.
Origin and habitat
Qualify geographical origin and describe the actual growing site.
Native range and occurrence origin
Use Central China as the current POWO native-range baseline, while retaining source disagreements and local introduction evidence. [Kew POWO](https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:30051955-2)
- Which reference supports the native or introduced classification at this location? provenance
- What habitat, soil moisture, light exposure and cultivation history characterize the observed site? measurement
Recruitment and spread
Distinguish planted persistence from reproduction and expansion outside cultivation.
Self-sustaining population
Require evidence of recruitment and persistence before assigning local establishment or spread.
- Are unplanted seedlings surviving into later stages beyond the maintained planting area? measurement
- What observations distinguish new recruitment from deliberate planting or vegetative regrowth? boundary
Use and stewardship Connect the tree's intended use with conservation evidence, local effects and justified interventions.
Cultivation value and ecological acceptability depend on plant identity, location and management objectives.
Cultivation purpose
Assess the living tree's suitability for a stated use without transferring claims to downstream products.
Purpose-specific management
Distinguish leaf production for silkworm feeding, fruit production and ornamental objectives when assessing a planting.
- Is this tree managed for leaves, fruit or amenity, and what evidence supports the selection's suitability? definition
- Which propagation, pruning or harvesting actions fit that objective and the observed tree condition? action
Conservation and local effects
Keep global conservation assessment, local ecological effects and legal constraints separate.
Evidence for intervention
Require dated assessments and site evidence before recommending retention, planting, containment or removal.
- What is the directly verified IUCN category and assessment year, and which separate local assessments or restrictions apply? provenance
- What evidence of spread, effects on neighbouring vegetation or interactions with native mulberries supports the proposed action and its monitoring plan? 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.
- This is recall-based information; no sources were consulted.
- Verify exact GBIF and NCBI identifiers, current taxonomic treatment, and any IUCN assessment category and year.
- Cultivar groups here describe horticultural uses, not formal botanical varieties; identification and native-range boundaries need specialist checking.
- Which of these check these first hold for the sense of Morus alba this model covers, and on what evidence? provenance
Kinds and varieties
Recalled without web access and unsourced; every item is a lead to verify.
- Cultivars selected for silkworm leaf production
- Cultivars selected for edible fruit
- Weeping ornamental cultivars
- Fruitless ornamental selections
- Which of these kinds and varieties hold for the sense of Morus alba 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 nomenclature - Morus alba L. - L. denotes Linnaeus; the name was published in 1753.
- GBIF taxon key - Numeric taxon identifier - The exact identifier and accepted-name treatment require verification.
- NCBI Taxonomy ID - Numeric taxon identifier - The exact identifier requires verification.
- Which of these identifiers and schemes hold for the sense of Morus alba this model covers, and on what evidence? provenance
Standards and regulation
Recalled without web access and unsourced; every item is a lead to verify.
- The International Code of Nomenclature for algae, fungi, and plants, maintained through the International Botanical Congress nomenclature process, governs the scientific name.
- Which of these standards and regulation hold for the sense of Morus alba this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Leaves feed domesticated silkworms, Bombyx mori, in silk production.
- Ripe fruits are eaten fresh or processed into preserves and other foods.
- Cultivars are planted as ornamental and shade trees.
- Leaves are used as livestock fodder in some production systems.
- Wood is used for small timber products and fuel.
- Which of these real-world use hold for the sense of Morus alba this model covers, and on what evidence? provenance
Typical measurements
Recalled without web access and unsourced; every item is a lead to verify.
- Mature tree height - Approximately 10-20, with substantial variation by cultivar, site and pruning - m
- Which of these typical measurements hold for the sense of Morus alba 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.
- Can spread beyond cultivation and become invasive in some introduced regions.
- Hybridization with Morus rubra can threaten the genetic integrity of native red mulberry populations in North America.
- Pollen from male flowers can cause respiratory allergies.
- Fallen fruit can stain surfaces and create slippery conditions.
- Which of these failure modes and hazards hold for the sense of Morus alba this model covers, and on what evidence? provenance
Regional variation
Recalled without web access and unsourced; every item is a lead to verify.
- Native to China; long cultivation and human transport complicate precise reconstruction of its original range.
- Cultivation in Asian sericulture systems often emphasizes repeated leaf harvesting and pruning.
- In North America it is introduced, and ecological concerns include spread and hybridization with native red mulberry.
- Which of these regional variation hold for the sense of Morus alba 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.
- Morus nigra - Black mulberry is a separate species; ripe fruit color alone does not distinguish it because Morus alba can also bear dark fruit.
- Morus rubra - Red mulberry is a distinct North American species, generally with rougher upper leaf surfaces and more densely hairy undersides; hybrids can make identification difficult.
- Bombyx mori - The domesticated silkworm is an insect that feeds on mulberry leaves, not a mulberry taxon.
- White mulberry population - A population comprises individuals occurring in a particular area; Morus alba denotes the species across its populations.
- Mulberry fruit - The harvested multiple fruit is a plant product and may come from several Morus species; it is not the species itself.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of Morus alba this model covers, and on what evidence? provenance
What the second pass must settle
- Which current GBIF identifier and taxonomic treatment should be bound to vr.tr.morus-alba, and do they match the selected POWO concept?
- What is the directly verified IUCN Red List category, assessment year and assessment scope for Morus alba?
- How should differing native-range accounts be reconciled where long cultivation histories obscure origin?
- Which regional diagnostic characters and validated genetic methods reliably distinguish M. alba from relevant lookalikes and hybrids?
- What evidence establishes reproductive behaviour, cultivation suitability and ecological effects for the particular selections and regions being modelled?