North America Non-native Plant

Orchid Cactus

Botanical name: Epiphyllum macropterum

USDA symbol: EPMA2

Native status: Not native but doesn't reproduce and persist in the wild

Orchid Cactus: The Mysterious Epiphyllum macropterum If you’ve stumbled upon the name orchid cactus or Epiphyllum macropterum in your gardening research, you might be scratching your head trying to find reliable information about this particular plant. You’re not alone! This specific species name presents quite the botanical puzzle for gardeners ...

Orchid Cactus: The Mysterious Epiphyllum macropterum

If you’ve stumbled upon the name orchid cactus or Epiphyllum macropterum in your gardening research, you might be scratching your head trying to find reliable information about this particular plant. You’re not alone! This specific species name presents quite the botanical puzzle for gardeners and plant enthusiasts alike.

What We Know (And What We Don’t)

Epiphyllum macropterum falls under the common name orchid cactus, which typically refers to epiphytic cacti known for their stunning, orchid-like blooms. However, finding concrete information specifically about E. macropterum proves surprisingly challenging, which raises some important questions for potential growers.

The limited available information suggests this plant may be native to Central or South America, following the pattern of other Epiphyllum species. However, without clear geographical distribution data, we can’t pinpoint its exact origins or current native range.

The Identification Challenge

Here’s where things get interesting (and a bit frustrating): the scarcity of reliable information about Epiphyllum macropterum specifically might indicate several possibilities:

  • It could be a very rare or regionally specific species
  • The name might be outdated or synonymous with another recognized species
  • It could be a cultivar or hybrid that’s been misidentified as a species
  • Information may simply be limited in easily accessible sources

Should You Grow It?

Without clear information about this plant’s native status, invasive potential, or specific growing requirements, we’d recommend proceeding with caution. If you’ve encountered this plant name:

  • Verify the identification with local botanical experts or extension services
  • Ensure any plant material comes from reputable, legal sources
  • Consider well-documented native alternatives in the Epiphyllum genus

Better-Documented Alternatives

If you’re drawn to epiphytic cacti with orchid-like flowers, consider researching these better-documented options:

  • Epiphyllum oxypetalum (Queen of the Night)
  • Epiphyllum anguliger (Fishbone Cactus)
  • Native epiphytic cacti appropriate for your specific region

Growing Epiphytic Cacti Successfully

While we can’t provide specific care instructions for E. macropterum, most epiphytic cacti share similar growing preferences:

  • Bright, indirect light
  • Well-draining, organic-rich growing medium
  • Regular watering during growing season, reduced in winter
  • Higher humidity than typical desert cacti
  • Protection from direct sun and freezing temperatures

The Bottom Line

The mystery surrounding Epiphyllum macropterum serves as a great reminder of the importance of proper plant identification and sourcing. While the lack of readily available information doesn’t necessarily mean this plant is problematic, it does mean we should approach it thoughtfully.

If you’re set on growing this particular plant, we strongly recommend consulting with botanical experts, local extension services, or specialized cactus and succulent societies to verify its identity and appropriateness for your garden. Sometimes the most responsible gardening choice is to wait until we have better information – your local ecosystem will thank you for it!

Orchid Cactus

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Caryophyllidae

Order

Caryophyllales

Family

Cactaceae Juss. - Cactus family

Genus

Epiphyllum Haw. - climbing cactus

Species

Epiphyllum macropterum (Lem.) Britton & Rose - orchid cactus

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA