Types of orchids: how to tell which one you have
Start with the tag: it usually names the genus, and that one word tells you most of what you need. No tag? Look at the base of the plant. Swollen stems (pseudobulbs) or none, one central crown or a row of shoots, wide flat leaves or thin straps: those three clues sort most home orchids before a single flower opens. The flower then confirms it, because a moth, a slipper, a pansy and a spider are hard to mix up.
How do I identify my orchid?
- Read the tag. The first word on most tags is the genus, such as Phalaenopsis or Dendrobium. The next section explains the rest of the name.
- Look at the base. Swollen, bulb-like or cane-like stems are pseudobulbs, the plant's water tanks. Their shape is one of the best clues you have.
- Find the growing point. One crown in the center that keeps growing upward, or a row of shoots marching sideways across the pot?
- Check the leaves. Wide and flat, long and grassy, leathery straps in two neat rows, velvety with gold veins: each points to a different group.
- Confirm with the flower. Moth, slipper, skirt, pansy, spider or tails. The table further down lists what to look for in 13 common orchids.
Why bother? Because the type sets the care. Orchids with pseudobulbs can dry out more between waterings, and moth and slipper orchids, which have none, want steadier moisture, as Iowa State, Clemson and the American Orchid Society agree. Our watering guide covers that by type.
What does the name on an orchid tag mean?
The New York Botanical Garden's guide to orchid names and the RHS's introduction to how orchids are named explain the pieces:
| On the tag | What it means | Example |
|---|---|---|
| Genus (italic, capitalized) | The group the plant belongs to. It's the clue that matters most for care. | Dendrobium |
| Species (italic, lowercase) | A wild species, or a plant grown from one. | Dendrobium bigibbum |
| Grex name (capitalized, plain letters, can be several words) | Every seedling from one pair of parents shares it, whichever parent carried the seed. The RHS registers these names. | Dendrobium Spring Bird |
| Name in 'single quotes' | One chosen plant, copied by cloning so every copy is identical. | Dendrobium Spring Bird 'Kurashiki' |
| Two names joined by × | An unregistered cross, labeled with both parents. | Phalaenopsis Taida Leopard Princess × Taisuco Firebird |
| ALL CAPITALS | A seller's trade name. It isn't registered and doesn't tell you the parents. | Phalaenopsis SUMMER SNOW |
The NYBG adds two things you'll see on real tags. Some show only the genus and the quoted name, skipping the grex, and genus names are often shortened: Den. stands for Dendrobium, for example. If the tag shows only a short form you don't recognize, the RHS keeps the official list of abbreviations.
A tag that just says "orchid" is common with supermarket plants. The moth orchid is the one sold in most grocery stores, so that's the likely answer, but check the base of the plant to be sure.
Going deeper
Orchids cross more freely than most plants: hybrids form between species and even between related genera. The American Orchid Society says that's because orchids have weak built-in barriers to crossing, so what usually keeps species apart in the wild is season, distance and pollinators. These crosses between genera, called intergeneric hybrids, get a blended name: Brassocattleya is Brassavola crossed with Cattleya, and the AOS and the NYBG both use that example. When four or more genera are involved, and sometimes three, the name often ends in "-ara" and honors a person. An "×" may come before the name to flag it as a hybrid genus, a style the RHS uses in its oncidium guide. One caution from the AOS: a hybrid's parents don't reliably predict its care, so treat the plant in front of you as the guide, and watch how it responds.
Does my orchid have pseudobulbs?
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A pseudobulb is a thickened stem that holds water and food, as Clemson Extension, NC State and Fairchild Tropical Botanic Garden describe it. Their shape tells genera apart:
- Tall, jointed canes: Dendrobium. NC State calls them narrow, segmented pseudobulbs that look like canes.
- Upright, club-like bulbs with one or two thick leaves on top: Cattleya (NC State).
- Flattened bulbs in a clump, each giving one flower stem: Oncidium (RHS, NC State) and Brassia, whose bulbs the AOS describes as compressed and often sharp-edged.
- Egg-shaped bulbs with two or three glossy strap leaves: Zygopetalum (NC State).
- Bulbs hidden in a fountain of long, thin leaves: Cymbidium (RHS, NC State).
No pseudobulbs at all? Then it's likely a moth orchid, a slipper orchid (Paphiopedilum, which grows in fans of leaves, per NC State), a Vanda, a Masdevallia (one fleshy leaf per stem, per NC State) or a jewel orchid (Ludisia). An old, shriveled pseudobulb behind the new ones is normal, NC State notes for Cattleya.
Does it grow from one crown or from a row of shoots?
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The American Orchid Society and UConn Extension describe the two ways orchids grow:
- Monopodial (one foot): a single stem grows upward from one crown, adding leaves at the top. If that crown dies, the AOS says, the plant can't grow a new one. The moth orchid (AOS) and Vanda (NC State, AOS, UConn) grow this way.
- Sympodial (many feet): a stem creeps sideways along or just under the surface, and buds along it grow into new shoots that swell into pseudobulbs. Dendrobium and Cymbidium are the examples the AOS and UConn give, and every orchid with pseudobulbs fits the AOS description.
Slipper orchids are the odd case. UConn lists Paphiopedilum as monopodial, while the Orchid Society of Great Britain calls it sympodial, with fans of leaves rising from short creeping stems. NC State and the RHS just say new fans appear beside the old ones. Either way, you'll see a clump of fans, and that's what to look for.
Going deeper
Why does it matter at home? A monopodial orchid has everything riding on its single crown. The AOS says a plant whose crown is damaged can't regrow from anywhere else, and its moth orchid guide warns against leaving water in the leaf bases overnight. A sympodial orchid spreads the risk: each new shoot grows from the creeping stem, and the AOS explains that the tip of a mature pseudobulb usually ends in a flower. That's why a healthy sympodial orchid gets bigger and blooms from more shoots as the years go by. Our repotting guide covers potting each type.
What do the leaves and flowers tell me?
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Leaves
- Broad, flat, drooping leaves on a short stem: moth orchid (AOS).
- Leathery straps stacked in two neat rows up one stem, with a tangle of thick roots below: Vanda. NC State says its aerial roots can't be kept in a pot, and the AOS says most Vanda grow best in an open basket with no potting mix.
- Long, narrow, arching leaves like a fountain: Cymbidium (NC State, RHS).
- Fans of leaves, plain green or mottled: slipper orchid. NC State notes the warm-growing types usually have mottled leaves.
- Dark, velvety leaves with gold to red veins: jewel orchid, Ludisia discolor. NC State and the AOS both say people grow it for the leaves more than the flowers.
- A green vine climbing a support, rooting as it goes: Vanilla (AOS, Purdue Extension).
Flowers
- Flat, round flowers like a moth in flight: moth orchid (AOS, UF/IFAS).
- A pouch-shaped lip, like a slipper: Paphiopedilum (NC State, UConn).
- A frilly lip that flares like a skirt: dancing lady, Oncidium. NC State says that's where the name comes from.
- A flat face like a pansy: pansy orchid, Miltoniopsis (NC State, NYBG).
- Long, thin, spreading petals like spider legs: spider orchid, Brassia (Cornell, AOS). Cornell explains the trick behind it: female wasps that hunt spiders attack the flower and carry its pollen away.
- A triangle with long tails: Masdevallia, whose sepals join at the base and stretch into tails, per NC State. The ASPCA calls it the tailed orchid.
- Green petals spotted purple or brown, with a white lip streaked purple: Zygopetalum, which NC State and the AOS both call fragrant.
- Large, waxy flowers on spikes from the leaf bases: Vanda (NC State); the AOS says they're usually fragrant.
- Big, showy flowers with a lip in a contrasting color: Cattleya (NC State).
- Flowers along the cane, or in sprays from its top: Dendrobium. On soft-cane types like Dendrobium nobile they open along the cane; on hard-cane types they come from the top, per NC State.
What are the most common types of orchids?
Species counts come from Kew's World Checklist of Vascular Plants (June 2026), the data behind Plants of the World Online. Many store plants are hybrids, so a count tells you how big the wild group is. Hybrids are a far longer list: Fairchild Tropical Botanic Garden counts over 100,000 registered ones.
| Orchid | Look for | Wild species (Kew) |
|---|---|---|
| Moth orchid (Phalaenopsis) | Broad flat leaves from one crown, no pseudobulbs, moth-like flowers. Full care on its care card. | 83 |
| Dendrobium | Tall jointed canes; flowers along or atop the canes | 1,603 |
| Dancing lady (Oncidium) | Flattened pseudobulbs, sprays of flowers with a skirt-like lip | 339 |
| Cattleya | Upright pseudobulbs with one or two thick leaves, large showy flowers | 136 |
| Slipper orchid (Paphiopedilum) | Fans of leaves, often mottled, no pseudobulbs, pouch-shaped lip | 110 |
| Cymbidium | Long grassy leaves over hidden pseudobulbs, arching flower spikes | 92 |
| Vanda | Strap leaves in two rows up one stem, masses of aerial roots | 90 |
| Pansy orchid (Miltoniopsis) | Thin leaves, flat pansy-faced flowers | 5 |
| Zygopetalum | Egg-shaped pseudobulbs, green flowers spotted purple, fragrant | 6 |
| Jewel orchid (Ludisia) | Creeping stems, velvety dark leaves with gold veins | 2 |
| Vanilla | A climbing vine that roots along its stem | 129 |
| Masdevallia | One fleshy leaf per stem, triangular flowers with tails | 656 |
| Spider orchid (Brassia) | Flattened pseudobulbs, flowers with long, thin, spidery petals | 70 |
Older counts differ. The AOS gives about 53 species for Vanda and about 15 for Zygopetalum, for example. Kew's checklist is updated as botanists move species between genera, which is why we use it. Where each of these grows wild is on our origins page.
Which orchids are called lady slippers?
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The New York Botanical Garden uses "lady's slipper orchids" for all three groups, and says you may also hear them called Venus' slippers, after the Roman name for Aphrodite. Growers shorten them to Cyps, Paphs and Phrags. Here's how to tell which one someone means:
- Cypripedium: the wild ones. Hardy ground orchids of cold and temperate places, native across the Northern Hemisphere and south to Mexico and Central America, per Kew. The USDA Forest Service calls them lady's slippers and says they rarely survive being dug from the wild. North America's best known is the pink lady slipper.
- Paphiopedilum: the houseplant. Native from southern China to tropical Asia (Kew). NC State calls it the lady slipper orchid, or tropical lady slipper. This is the one in garden centers, raised in nurseries. Care is on its card.
- Phragmipedium: the New World slippers. Native from southwestern Mexico to tropical South America (Kew). Gardens by the Bay calls them New World slipper orchids and notes their often branched flower spikes and longer, narrower leaves. Its most famous species is Phragmipedium kovachii.
So a lady slipper spotted on a spring walk in the woods of Maine is a Cypripedium. For a potted one, check the tag: as the first section explains, it usually names the genus.
Compare orchid types
The chart below compares these orchids side by side, and its filters show which are easy for beginners, which handle low light, which are fragrant, which are safe for pets, and which are cool, intermediate or warm growers.
| Orchid | Care | Light | Temperature group | Fragrance | Pets |
|---|---|---|---|---|---|
| Moth orchid (Phalaenopsis) | Moderate | Bright indirect | Warm, Intermediate | Some are fragrant | Non-toxic to cats, dogs and horses |
| Dancing lady orchid (Oncidium) | Moderate | Bright, gentle sun | Cool, Intermediate, Warm | Often fragrant | Not rated for pets |
| Spider orchid (Brassia) | Moderate | Bright indirect | Intermediate | Some are fragrant | Not rated for pets |
| Cattleya | Moderate | Bright, some sun | Intermediate | Often fragrant | Non-toxic to cats and dogs (NC State) |
| Zygopetalum | Moderate | Bright indirect | Cool, Intermediate | Often fragrant | Not rated for pets |
| Pansy orchid (Miltoniopsis) | Challenging | Bright, soft light | Cool, Intermediate | Often fragrant | Not rated for pets |
| Masdevallia | Challenging | Bright, diffuse light | Cool, Intermediate | Some are fragrant | Non-toxic to cats, dogs and horses |
| Jewel orchid (Ludisia discolor) | Easy to moderate | Medium indirect | Intermediate, Warm | Some are fragrant | Non-toxic to cats, dogs and horses |
| Vanilla orchid (Vanilla) | Moderate | Bright indirect | Intermediate, Warm | Often fragrant | Not rated for pets |
| Lady slipper orchid (Paphiopedilum) | Moderate | Medium indirect | Cool, Warm | Rarely fragrant | Not rated for pets |
| Cymbidium | Challenging | Some direct sun | Cool, Intermediate | Some are fragrant | Not rated for pets |
| Dendrobium | Moderate | Very bright | Cool, Intermediate, Warm | Some are fragrant | Not rated for pets |
| Vanda | Challenging | Some direct sun | Intermediate, Warm | Often fragrant | Not rated for pets |
Frequently asked questions (FAQ)
What is the most common type of orchid?
The moth orchid (Phalaenopsis). It's the one sold in most grocery stores and garden centers, and the RHS calls it probably the easiest orchid to grow at home. Our orchid care guide explains why it's the best first orchid.
Can I tell orchid types apart by the leaves alone?
Often, yes. Broad flat leaves from one crown mean a moth orchid, straps in two rows mean Vanda, long grassy leaves mean Cymbidium, and velvety veined leaves mean Ludisia. Pseudobulbs narrow it down further. Plants with similar leaves, like the many pseudobulb orchids, may need the flower to confirm.
What does "intergeneric hybrid" mean on a tag?
The plant's parents came from two or more different genera. Its name blends theirs: Brassocattleya comes from Brassavola and Cattleya, per the American Orchid Society and the NYBG. Care can vary, so watch how the plant grows and adjust.
My tag fell out. Can I still look up my orchid?
Yes. Work through the five checks at the top of this page: pseudobulbs, growing point, leaves and flower will name the genus in most cases. That's enough to start the right care. For the exact hybrid name, you'd need the original tag or the seller.
Is a vanilla plant really an orchid?
Yes. The vanilla used in cooking comes from Vanilla planifolia, a climbing orchid vine, according to Cornell and Purdue Extension. Purdue adds that it rarely flowers or makes pods in an ordinary home.
Sources
- World Checklist of Vascular Plants, version 16 (June 2026), with genus pages for Phalaenopsis, Dendrobium, Oncidium, Cattleya, Paphiopedilum, Cymbidium, Vanda, Miltoniopsis, Zygopetalum, Ludisia, Vanilla, Masdevallia and Brassia, plus Cypripedium and Phragmipedium : Kew, World Checklist of Vascular Plants (Royal Botanic Gardens, Kew, June 2026)
- Understanding Orchid Names (updated February 2026) and Please help me to understand orchid names (updated October 2024) : New York Botanical Garden, Mertz Library
- How orchids are named: an introduction : Royal Horticultural Society, Plant Registration
- Intergeneric Hybrids, Shoots and Spikes and Phalaenopsis, the Genus : American Orchid Society
- Explore pages for Vanda, Brassia, Miltoniopsis, Zygopetalum, Ludisia and Vanilla : American Orchid Society
- Vanda, Ludisia discolor, Masdevallia, Zygopetalum, Miltoniopsis roezlii, Oncidium, Paphiopedilum, Dendrobium, Cattleya and Cymbidium : NC State Extension Gardener Plant Toolbox
- The Magnetic Appeal of Pansy Orchids : New York Botanical Garden, Plant Talk (March 2013)
- Brassia spp. (spider orchid) (March 2017) and Vanilla planifolia : Cornell University, Liberty Hyde Bailey Conservatory
- The Vanilla Orchid : Purdue Extension, Indiana Yard and Garden (R. Lerner, updated 2006)
- A Beginner's Guide to Orchids : UConn Home and Garden Education Center (March 2024)
- Cool growing oncidium orchids, How to grow cymbidium orchids, Paphiopedilum growing guide and Top tips for growing orchids at home : Royal Horticultural Society
- Paphiopedilum orchid care : Orchid Society of Great Britain
- What's in a Name? Paphs, Cyps, and Phrags : New York Botanical Garden, Plant Talk (Katherine Wagner-Reiss, March 9, 2017)
- Meet the Ladies: The Slipper Orchids : USDA Forest Service, Celebrating Wildflowers (archived copy, 2012)
- Phragmipedium : Gardens by the Bay, What's Blooming
- Orchids : Clemson Cooperative Extension; Growing Orchids Indoors : Iowa State University Extension and Outreach; Moth orchid : UF/IFAS Gardening Solutions; Orchid Varieties, Identification and Care : Fairchild Tropical Botanic Garden
- Toxic and Non-Toxic Plant List: Cats : ASPCA Animal Poison Control