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Research draft

grass

vr.tr.grass · PHY.LIV

Let an agent handle grasses by species, use and management, from lawns and pasture to invasive grasses and allergens.

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 grasses by species, use and management, from lawns and pasture to invasive grasses and allergens.

Plants of the grass family (Poaceae) and grass-like plants, with narrow leaves and jointed stems, forming lawns, pastures, grasslands and cereal crops.

What it is for: Grasses feed livestock, stabilise soil, make lawns and include the cereals.

It can be grow, mow and graze it; make hay and haylage; control invasive species; manage allergy risk from pollen.

Distinguishing features

Poaceae family, including cereals and bamboos

Grows from the base, tolerating grazing and mowing

Pollen is a major allergen

Seagrasses are marine flowering plants, not true grasses

What it looks like

Narrow green blades from the base, with jointed stems and flower heads (spikelets) in seed.

Physical character

height: 0.01-30 m - lawn grasses to giant bamboos

species: about 12000 species - Poaceae

How it is recognised

Narrow parallel-veined leaves with sheaths

Hollow jointed stems

Sedges and rushes look similar but differ in stem shape

Related models

is a kind of - Poaceae

plant

feeds - forage

livestock

is part of - ecosystems

grassland and landscape

causes - pollen allergy

hay fever

In practice

Families and kinds

lawn and turf grasses

pasture and forage grasses

cereals

bamboos

native and invasive grasses

Identifiers

scientific name binomial species

Standards and regulation

Seed certification rules

Invasive species regulations

Pollen forecasting services

Failure modes and hazards

Pollen allergy

Fire risk from dry grass

Invasive grasses displacing native vegetation

Also called

marine flowering plantnative grassblade of grassinvasive grassMonbenwheatgrasshaylageDigitaria californicaMuhlenbergia schreberiRêsîornamental grass

Where this came from

wikidata · CC0 1.0

Also registered as vr.tr.grass

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 grass.

Species decides use and risk.

Species

Name.

Species

The species.

  1. Which grass species is this? definition
  2. Is it native here? provenance

Features

Leaves, stems, flowers.

Features

Identifying features.

  1. Which features identify it? definition
  2. Could it be a sedge or rush? boundary
Use Lawns, pasture, crops.

Use decides management.

Purpose

What it is grown for.

Purpose

The purpose.

  1. What is this grass grown for? definition
  2. What yield or quality is expected? measurement

Management

Mowing, grazing, fertiliser.

Management

Management practices.

  1. How should it be mown, grazed or fertilised? action
  2. What harms it? boundary
Ecology Grasslands and invasives.

Grasses shape ecosystems.

Habitat

Grassland ecosystems.

Habitat

Habitat role.

  1. What role does it play in the ecosystem? definition
  2. Which wildlife depends on it? definition

Invasive status

Spread and control.

Invasive status

Whether it is invasive.

  1. Is it invasive here? boundary
  2. How should it be controlled? action
Health and fire Pollen and fire.

Grass affects health and fire risk.

Pollen

Allergy.

Pollen

Pollen season and counts.

  1. When is the pollen season, and what is the count today? measurement
  2. What helps people with hay fever? action

Fire

Dry grass fires.

Fire risk

Fire risk.

  1. What is the grass fire risk now? boundary
  2. Which precautions apply? action

What the second pass must settle

  • Should grass species be separate entries?
  • How should seagrasses be handled given the name?
  • How should invasive status be recorded by region?