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Research draft

leaf

vr.tr.leaf · PHY.LIV

Let an agent handle leaves by plant, form, function, identification and use, with cautions about toxic plants.

Thing Registry Physical world and living systems

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.

written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify

Researched by: Claude

Purpose and description

Let an agent handle leaves by plant, form, function, identification and use, with cautions about toxic plants.

The flattened, usually green organ of a vascular plant attached to the stem, specialised for photosynthesis and gas exchange; leaves of many plants are also used as food, herbs and tea.

What it is for: Photosynthesis and transpiration; for people, food, herbs, tea and medicine.

It can be identify plants from leaves; harvest culinary leaves; diagnose plant health from leaves; compost fallen leaves.

Distinguishing features

Plant organ for photosynthesis

Diverse shapes used in identification

Deciduous or evergreen

Some leaves are toxic

What it looks like

Flat green blades on stalks, in countless shapes, sizes and arrangements.

Physical character

blade length: millimetres to over 2 m - duckweed to palms

How it is recognised

Shape, margin, venation and arrangement

Simple or compound

Culinary leaves such as bay or nettle

Related models

is a kind of - category

plant organ

is part of - whole

plant

performs - function

photosynthesis

is used as - uses

herb and tea

In practice

Families and kinds

simple leaves

compound leaves

needles and scales

modified leaves such as spines and tendrils

culinary and tea leaves

Standards and regulation

Plant health rules for imported plant material

Food safety rules for leafy produce

Failure modes and hazards

Eating toxic leaves from misidentified plants

Pesticide residues

Slippery leaf litter on paths

Also called

Cymbopogon citratus leafnettle leafbeetcoffee leafbay leafhoneysuckle leavesdaisy leafmint leafperilla leafSenna leafskeleton leafpalm leafbanana leafnipa palm leafsepalfoxglove leavescataphyllMoringa leafcabbage leafrose leafbitter orange leafbaobab leaftobacco leafGeranium robertianum leaflotus leafmegaphyllsimple leaflinear leafovate leaf bladesubulate leafreniform leafspear-shaped leaftrap leafparallel-veined leafreticulately veined leafsessile leafsporophyllcamptodromous venation leafpartite leafoblong leaf blade

+51

Where this came from

wikidata · CC0 1.0

Source repository Registry entry point

Also registered as vr.tr.leaf

Drafted structure

Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.

Identification Which leaf.

Leaves identify plants.

Form

Shape and margin.

Form

Leaf form.

  1. What are the leaf shape, margin and venation? definition
  2. Simple or compound? definition

Plant

Species.

Plant

Plant species.

  1. Which plant does the leaf come from? provenance
  2. Is it confirmed by an expert or key? provenance
Function Biology.

Leaves feed plants.

Photosynthesis

Energy.

Photosynthesis

Photosynthesis.

  1. How does the leaf capture light and exchange gases? definition
  2. What adaptations does it show? definition

Plant health

Symptoms.

Plant health

Leaf symptoms.

  1. What do yellowing or spots on the leaf indicate? definition
  2. Should a plant health authority be told? boundary
Use Food and herbs.

Leaves are eaten and brewed.

Food

Edible leaves.

Food

Edible use.

  1. Is the leaf edible, and how is it prepared? boundary
  2. Could it be confused with a toxic plant? boundary

Tea and herbs

Infusions.

Tea

Infusions.

  1. Is the leaf used as tea or herb? definition
  2. Are there health warnings? boundary
Seasons Leaf fall.

Leaves change.

Autumn

Colour and fall.

Autumn

Leaf fall.

  1. Why do leaves change colour and fall? definition
  2. When? measurement

Litter

Compost and safety.

Litter

Leaf litter.

  1. How can fallen leaves be composted? action
  2. How are slippery paths managed? action

What the second pass must settle

  • Should leaf types be separate entries?
  • How should culinary leaves be linked?
  • How should identification keys be linked?
Draft as JSON