Plant Nomenclature: The Logic and Stories Behind Scientific Names

Introduction

Welcome back to the Specimen Archive. Today’s lesson takes us into a territory many find dry but is actually rich with stories — the world of botanical names.

Have you ever stared blankly at a plant label? Philodendron gloriosum, Alocasia baginda ‘Dragon Scale’, Monstera adansonii var. laniata… These seemingly awkward Latin letter combinations hide centuries of scientific tradition, tales of adventurers, and humanity’s ambition to understand the natural order.

Learning to read plant nomenclature isn’t just about looking professional at the plant shop. It’s a key that unlocks understanding of plant relationships, helps predict care requirements, and lets you appreciate the secrets hidden within names. Let’s begin this nomenclature journey.

Linnaean Binomial Nomenclature: The Foundation of Modern Plant Classification

Our story begins in 18th-century Sweden. Carl Linnaeus (1707–1778) — revered as the “father of taxonomy” — created the binomial system we still use today.

Before Linnaeus, plant “names” were terrifyingly long. A species might be described as Begonia folio oblongo, flore albo, fructo triangulo (begonia with oblong leaves, white flowers, triangular fruit) — these descriptive names were neither precise nor practical.

Linnaeus’s innovation was simplicity: each species is identified by just two Latin words — genus name + specific epithet. Take Monstera deliciosa: Monstera is the genus (from Latin “monstrum,” meaning monster, referring to the leaf’s unusual shape), and deliciosa is the specific epithet (meaning “delicious,” referring to its edible fruit).

The elegance of this system lies not only in giving each species a unique name, but also in revealing relationships through shared genus names. All Monstera species share certain characteristics — this is the core logic of foliage plant classification.

Secrets in Scientific Names: What Do Specific Epithets Tell Us?

Specific epithets are often the most fascinating part. They can come from various sources, commonly:

Describing Characteristics

The most direct approach. Philodendron hederaceum‘s epithet comes from Latin “hedera” (ivy), referring to its ivy-like leaf shape. Anthurium crystallinum‘s crystallinum means “crystal-like,” describing how the veins sparkle like crystals under light. When you understand these roots, a scientific name paints a picture — that’s the practical value of Latin scientific names.

Honoring People

Many plants are named after their discoverers, patrons, or renowned botanists. Philodendron gloriosum reportedly commemorates a botanist’s contributions (gloriosum means “glorious”). Begonia rex‘s rex means “king,” highlighting its regal status among begonias.

Indicating Origin

Some epithets directly reference a plant’s native region. While Philodendron ‘Birkin’ is a cultivar name rather than a specific epithet, similar examples like Anthurium andraeanum connect to discovery locations. Geographic epithets are common, and reading them can help you associate the location’s climate characteristics with the plant’s care preferences.

Naming Rules for Horticultural Cultivars

Wild plants have scientific names; horticulturally bred varieties have a separate naming system. The International Code of Nomenclature for Cultivated Plants (ICNCP) specifies that cultivar names are enclosed in single quotation marks and are not italicized.

A classic example: in Monstera deliciosa ‘Thai Constellation’, Monstera deliciosa is the scientific name and ‘Thai Constellation’ is the cultivar name. This name clearly tells you: this is a horticultural variant of Monstera, characterized by creamy white spots on leaves resembling a starry sky (Constellation).

Another common notation uses var. (variety) and subsp. (subspecies). Monstera adansonii var. laniata specifies this as a variety of M. adansonii with leaf shapes differing from the typical form.

The variety name laniata comes from Latin “laniatus” (torn or lacerated), suggesting deeper, finer leaf splits — seeing this name tells you exactly what leaf shape to expect.

Stories Behind Common Foliage Plant Scientific Names

Monstera deliciosa: “Delicious Monster”

This is probably one of the most entertaining scientific names. Monstera (monster) refers to the unusual fenestrated leaves, while deliciosa (delicious) comes from its fruit. Yes, Monstera fruit is edible when ripe, said to taste like a mix of pineapple and banana. Of course, unripe fruit contains calcium oxalate crystals that irritate the mouth — don’t experiment with this.

Alocasia: “Without Shelter”

Alocasia derives from Greek “a-” (without) + “locasis” (shelter or cover), referring to how Alocasia’s enormous leaves are so large that almost nothing can shelter over them — describing both the spectacular foliage and hinting at its ecological niche as a large-leafed understory plant in native rainforests.

Philodendron: “Tree Lover”

This is one of my favorite scientific names. Philodendron comes from Greek “phileo” (to love) + “dendron” (tree), meaning “tree lover.” This name perfectly describes the climbing habit of Philodendron species — they love trees, adhering to trunks and ascending toward the canopy in search of more abundant light. Every time I see a Philodendron climbing a moss pole in my living room, I’m reminded of this romantic name.

Sansevieria → Dracaena: A Taxonomic Earthquake

This is one of the most sensational nomenclatural changes in recent houseplant history. The genus Sansevieria was traditionally treated as distinct, but molecular biology revealed it should be merged into Dracaena. This means your Sansevieria trifasciata should now be called Dracaena trifasciata.

Such changes are not uncommon in plant nomenclature, and they always spark controversy. Many collectors and veteran growers resist new names, feeling “Sansevieria” has been the name for so long, why change it? But from a scientific perspective, these corrections reflect our deepening understanding of plant relationships — classification is not static; it evolves with new evidence.

Why Do Scientific Names Change?

Name changes happen for several main reasons:

New discoveries leading to reclassification: When scientists find that a species is more closely related to a different genus than previously thought, it gets moved. This has become increasingly common in the molecular systematics era — DNA evidence frequently overturns traditional morphological classification.

Priority principle: International plant nomenclature rules state that each species can have only one valid scientific name, and that name must be the earliest properly published one. Sometimes later researchers discover that a “new species” was actually named decades earlier, requiring adoption of the older name.

Merging or splitting genera: When taxonomists decide to merge two genera into one, all species from one genus need name changes. Conversely, splitting a genus also triggers mass renaming.

These changes are admittedly troublesome for collectors, but they’re an inevitable result of scientific progress. My advice: keep historical names on labels for reference, but use current valid names in formal contexts.

The Importance of Using Scientific Names Correctly

Why invest so much effort in learning and using botanical names? Several practical reasons:

Avoiding confusion: Common names vary by region. The same plant may have completely different names in Hong Kong, Taiwan, and mainland China. But scientific names are universal.

Understanding relationships: Scientific names tell you which genus a plant belongs to, meaning you can infer its basic habits. Plants within the same genus typically share similar light, water, and humidity requirements.

Precision searching: When searching for plant information online, using scientific names yields far more precise results than common names. Especially for rare varieties, Chinese-language resources may be scarce, but Latin scientific names connect you to global databases.

Conclusion

The world of plant nomenclature is more fascinating than we might imagine. Every scientific name is a small story — about a botanist’s expedition, an observation of a characteristic, or a trace of history. When you learn to decode these names, your connection with plants deepens from mere appreciation to intellectual understanding.

Every plant in the Specimen Archive carries its scientific name label. Next time you visit our shop at 4/F, Nan Hing Place, 39 Yiu Wa Street, Causeway Bay, take a closer look at those labels — if any name piques your curiosity, I’d be delighted to help unpack the story behind it.

You can also start with [plantjai.com](https://plantjai.com), practicing reading Latin scientific names in our plant archive. When these names cease to be awkward letter combinations and become meaningful symbols instead, your collecting journey gains yet another layer of depth.