Why Learn Plant Names in Latin?
Introduction
Walk into a garden centre and ask for a “daisy”, and you may be given several completely different plants.
Ask for Leucanthemum × superbum and the conversation becomes much more precise.
This is one of the main reasons horticulturists learn botanical names.
Common names are useful, familiar and often wonderfully descriptive, but they can vary between:
- countries
- regions
- generations
- languages
- gardening traditions
Botanical names provide a more internationally consistent way of identifying plants.
For a professional horticulturist, learning plant names is not simply about passing an identification test.
It is about being able to identify, discuss, source, grow and care for the correct plant.
Why Are Botanical Names Sometimes Called “Latin Names”?
Most scientific plant names are based on Latin, although they can also contain words derived from Greek and other languages.
Latin was historically used by scholars across Europe because it was the language of science and scholarship.
It also has an advantage:
Latin is no longer changing as an everyday spoken language.
This means that botanical terminology can remain relatively stable even though English, French, German and other languages continue to develop.
Technically, it is often more accurate to call them:
botanical names or scientific names
rather than simply “Latin names”.
A Short History of Plant Naming
Humans have been naming plants for thousands of years.
Early societies needed plant names for practical reasons:
- food
- medicine
- agriculture
- timber
- dye
- religion
- trade
Plants were often named according to:
- appearance
- use
- location
- season
- smell
- colour
- folklore
These common names remain with us today.
For example, names such as:
- foxglove
- snapdragon
- cowslip
- buttercup
- snowdrop
tell us something about how people historically perceived the plant.
However, common names can create confusion.
Early Scientific Naming
Before the modern system developed, plants were often described using long phrases.
A plant might have a descriptive name consisting of several words rather than a concise scientific name.
As the number of known plants increased, this became increasingly difficult to manage.
The development of a consistent naming system became essential.
Carl Linnaeus
One of the most important figures in the history of plant naming was Carl Linnaeus (1707–1778).
Linnaeus developed and popularised the use of binomial nomenclature.
“Binomial” means:
two names
The basic system uses:
Genus + specific epithet
For example:
Rosa canina
The genus is:
Rosa
The specific epithet is:
canina
Together they identify the species:
Rosa canina
Linnaeus did not invent every aspect of biological classification from nothing, but his work was enormously influential in creating a practical and widely adopted naming system.
Why Two Names?
Imagine that every rose was simply called “rose”.
There are thousands of different roses.
The genus name tells us the broader group.
The specific epithet helps distinguish the species within that genus.
It is rather like having:
Surname + first name
although the biological system is not exactly the same as a human naming system.
The Hierarchy of Plant Names
Plants are classified into a hierarchy.
A simplified horticultural hierarchy is:
Kingdom
↓
Division
↓
Class
↓
Order
↓
Family
↓
Genus
↓
Species
↓
Cultivar
Students do not always need to memorise every taxonomic rank, but they should understand the most useful levels for horticulture.
Family
The family is a large group of related plants.
Family names usually end in:
-aceae
Examples:
Rosaceae
Lamiaceae
Asteraceae
Fabaceae
The family can provide useful information about relationships between plants.
For example, members of the mint family, Lamiaceae, often share characteristics such as aromatic foliage and particular flower structures.
Genus
The genus is the first part of the botanical name.
It is written with a capital letter.
Example:
Lavandula
The genus contains related species.
Other examples include:
Rosa
Quercus
Acer
Salvia
Malus
Species
The species is the fundamental biological unit used in the binomial name.
For example:
Malus domestica
Malus = genus
domestica = specific epithet
Together they refer to the species.
The complete species name is normally written in italics.
Cultivar
A cultivar is a cultivated variety selected and maintained by people for particular characteristics.
Examples of characteristics might include:
- flower colour
- growth habit
- fruit quality
- disease resistance
- leaf colour
- size
- flowering period
A cultivar name is written in single quotation marks and is not italicised.
For example:
Lavandula angustifolia ‘Hidcote’
The hierarchy can therefore look like:
Family: Lamiaceae
Genus: Lavandula
Species: Lavandula angustifolia
Cultivar: ‘Hidcote’
The Basic Naming Hierarchy
Remember:
FAMILY
A large group of related plants.
↓
GENUS
A group of closely related species.
↓
SPECIES
A particular naturally occurring plant type.
↓
CULTIVAR
A cultivated selection with particular characteristics.
What About Hybrids?
Horticulture also uses hybrid names.
A hybrid may result from crossing two different species.
The multiplication sign × is used to indicate a hybrid.
For example:
Lavandula × intermedia
This is a hybrid between species within the genus Lavandula.
Hybrids are extremely important in horticulture because plant breeders deliberately select and cross plants to produce desirable characteristics.
Why Botanical Names Matter to a Horticulturist
1. Accuracy
Botanical names help identify exactly which plant is being discussed.
2. International Communication
A horticulturist in Britain can discuss Rosa rugosa with a horticulturist in Japan, France or Australia.
The common name may change.
The botanical name provides a shared reference.
3. Plant Buying
Garden centres, nurseries and wholesale growers use botanical names to distinguish plants.
This reduces the chance of ordering the wrong plant.
4. Plant Care
Different species may have completely different requirements for:
- soil
- light
- moisture
- pruning
- propagation
- feeding
- temperature
Knowing the correct name is therefore the first step towards finding the correct care information.
5. Pest and Disease Identification
Accurate plant identification can help determine which:
- pests
- diseases
- disorders
are likely to affect a plant.
6. Plant Toxicity
Some plants are toxic while closely related plants may have different properties.
Accurate identification is therefore important when discussing potentially harmful plants.
7. Conservation
Botanical names are essential when discussing:
- threatened plants
- native species
- invasive species
- plant collections
- biodiversity
- habitat restoration
You cannot conserve a plant effectively if you cannot accurately identify it.
Common Names Can Be Confusing
Consider the name:
Bluebell
In Britain this usually refers to Hyacinthoides non-scripta But the term “bluebell” can refer to different plants in other countries.
Similarly:
Geranium can refer to plants commonly sold as geraniums which are actually Pelargonium.
This is why horticulturists need to distinguish between common name and botanical name.
Understanding the Meaning of Names
One of the best ways to remember a botanical name is to understand what it means.
Many botanical names describe:
- colour
- shape
- habitat
- size
- country of origin
- leaf characteristics
- flower characteristics
- scent
- growth habit
For example:
alba
Often refers to:
white
rubra / rubrum
Often refers to:
red
grandiflora
Means approximately:
large-flowered
angustifolia
Means:
narrow-leaved
macrophylla
Means:
large-leaved
nana
Means:
dwarf or small
pendula
Means:
drooping or weeping
Understanding these words turns memorisation into detective work.
Break the Name Down
Instead of trying to memorise:
Lavandula angustifolia ‘Hidcote’
as one enormous piece of information, break it down.
Lavandula
What genus is it?
angustifolia
What does the specific epithet suggest?
‘Hidcote’
What cultivar is it?
Now connect the information:
Lavandula → lavender
angustifolia → narrow-leaved
‘Hidcote’ → particular cultivated selection
The name becomes a story rather than a random collection of letters.
Memory Technique 1: Say It Out Loud
Plant names are often easier to remember when spoken.
Say the name:
Rosa rugosa
rather than simply looking at it.
Then say it again later.
Memory improves through retrieval, not simply repeated reading.
Memory Technique 2: Look, Cover, Say, Check
This is one of the simplest revision techniques.
LOOK
Read the plant name.
COVER
Hide the answer.
SAY
Try to recall it.
CHECK
Look at the answer.
Repeat.
This is much more effective than repeatedly reading a plant list.
Memory Technique 3: Use Images
Connect the name to the plant.
For example:
Acer palmatum
Think about the characteristic hand-shaped leaves.
The word palmatum relates to a hand or palm.
The visual image reinforces the word.
Memory Technique 4: Learn the Word Parts
Learn common Latin and Greek roots.
For example:
| Word | Meaning |
| alba | white |
| rubra | red |
| nigra | black/dark |
| lutea | yellow |
| grandis | large |
| nana | dwarf/small |
| pendula | hanging/weeping |
| angustifolia | narrow-leaved |
| macrophylla | large-leaved |
| sempervirens | evergreen |
| officinalis | traditionally medicinal/useful |
| sylvatica | of woodland |
| aquaticus | associated with water |
The more word parts you know, the easier new names become.
Memory Technique 5: Make a Story
Take a difficult name and create a ridiculous story.
For example:
Pulmonaria
Think:
pulmonary → lungs
The spotted leaves of some Pulmonaria species were historically associated with lungs in the Doctrine of Signatures.
The stranger the association, the easier it can be to remember.
Memory Technique 6: Use Flashcards
Front:
Picture of plant
Back:
Botanical name
Then reverse the process.
Front:
Botanical name
Back:
Picture + common name + family
This makes identification a two-way skill.
Memory Technique 7: Learn Plants in Families
Instead of memorising 100 unrelated plants, group them.
For example:
Rosaceae
- Rosa
- Malus
- Prunus
- Crataegus
- Potentilla
Lamiaceae
- Salvia
- Lavandula
- Mentha
- Thymus
- Nepeta
Once the family and genus become familiar, new species become easier to learn.
Memory Technique 8: Learn the Genus First
If a plant is difficult, learn:
GENUS
first.
Then:
SPECIES
Then:
CULTIVAR
For example:
Rosa
↓
Rosa rugosa
↓
Rosa rugosa ‘Alba’
This builds the name progressively.
Memory Technique 9: Use Plants in Real Life
Do not only learn names from a screen.
Walk around the garden.
Point to a plant.
Say:
Common name
Botanical name
Family
Key identification feature
For example:
Lavender
Lavandula angustifolia
Lamiaceae
Opposite aromatic leaves and characteristic flower structure
The more senses involved, the stronger the memory can become.
Memory Technique 10: Use the Name in a Sentence
Instead of writing:
Malus domestica
ten times, write:
“Malus domestica is the cultivated apple.”
Then:
“Malus domestica is in the Rosaceae family.”
Then:
“Malus domestica is commonly propagated by grafting.”
Now the name is connected to horticultural knowledge.
Plant Identification Is More Than Memorising Names
A professional identification should ideally include:
Name → Family → Features → Requirements → Use
For example:
Plant: Lavandula angustifolia
Family: Lamiaceae
Features: Aromatic narrow leaves, woody base, spikes of flowers
Requirements: Sunny, well-drained conditions
Use: Ornamental, pollinator-friendly planting, aromatic gardens
This turns plant identification into useful horticultural knowledge.
Common Mistakes
Learning only the common name
You may struggle to find accurate information.
Learning only the Latin name
You may know the name but not recognise the plant.
Learning spelling without pronunciation
You may remember the letters but not the word.
Memorising huge lists at once
This quickly becomes overwhelming.
Learning plants in alphabetical order
Alphabetical order has little relationship to how plants are related.
Ignoring families
Family knowledge can make identification considerably easier.
How to Pronounce Botanical Names
There is no single universally agreed pronunciation of every botanical name.
Different countries and horticultural traditions pronounce them differently.
The priority is:
accuracy + consistency + communication
Do not be afraid of saying a name incorrectly while learning it.
It is better to attempt Lavandula angustifolia than to avoid saying it at all.
Why Plant Names Change
Students sometimes become frustrated when a plant they know suddenly has a different botanical name.
Plant classification changes as scientists learn more about relationships between plants through:
- morphology
- anatomy
- genetics
- DNA analysis
- molecular phylogenetics
As understanding improves, plants may be moved between genera or have names revised.
This is not necessarily an error. Science changes as knowledge improves.
Practical Plant-Name Exercise
Choose five plants.
| Plant | Common name | Genus | Species | Family | Cultivar |
| 1 | |||||
| 2 | |||||
| 3 | |||||
| 4 | |||||
| 5 |
Plant Name Investigation
Choose one difficult botanical name.
Botanical name:
What does the genus mean?
What does the specific epithet mean?
What family does it belong to?
Can you find another plant in the same genus?
Can you find another plant in the same family?
What feature helps you identify it?
Student Challenge
1. Why are botanical names useful when common names vary?
2. What are the two parts of a species name?
3. What is a genus?
4. What is a cultivar?
5. What does the suffix “-aceae” usually indicate?
6. Why might botanical names change over time?
7. Give three techniques that could help you remember plant names.
8. Why is learning plant families useful?
The Plant-Name Hierarchy
Remember the basic structure:
FAMILY
↓
GENUS
↓
SPECIES
↓
CULTIVAR
For example:
Rosaceae
↓
Malus
↓
Malus domestica
↓
Malus domestica ‘Discovery’
The more you understand the hierarchy, the less botanical nomenclature becomes a list of unrelated words.
A Better Way to Learn 150 Plant Names
If you have a large plant-identification list to learn, do not attempt to memorise the entire list at once.
Try:
Week 1
Learn 10 plants.
Week 2
Learn another 10 while revising the first 10.
Week 3
Add another 10.
Continue this process.
Use:
pictures + names + families + features + retrieval practice
Then test yourself regularly.
A useful target is:
Can I identify the plant without seeing its name?
and:
Can I produce the botanical name when I see the plant?
You need both skills.
Remember
Botanical names are not designed to make horticulture difficult.
They are designed to make communication more precise.
A common name can tell a story.
A botanical name tells you exactly which plant you are talking about.
The secret to learning them is not simply repetition.
It is:
Understand the meaning.
Learn the family.
Break the name into parts.
Look at the plant.
Say the name.
Recall it without looking.
Use it in a horticultural context.
Eventually, a name such as:
Hydrangea macrophylla ‘Mophead’
stops looking like a foreign language.
It becomes a description of a plant you already know.
And that is the point of learning botanical names:
You are not memorising words.
You are learning how horticulturists communicate about plants.
Key references
- Royal Botanic Gardens, Kew, resources on plant names, taxonomy and plant classification.
- Royal Horticultural Society (RHS), guidance on plant names and botanical nomenclature.
- International Code of Nomenclature for algae, fungi, and plants (ICN).
- International Code of Nomenclature for Cultivated Plants (ICNCP).
- Linnaeus, C. (1753), Species Plantarum.
- Stace, C.A., New Flora of the British Isles.