North America Non-native Plant

Lomagramma Cordipinna

Botanical name: Lomagramma cordipinna

USDA symbol: LOCO18

Life cycle: perennial

Habit: vine

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

Lomagramma cordipinna: The Mystery Fern That’s Hard to Pin Down If you’ve stumbled across the name Lomagramma cordipinna in your plant research, you’re not alone in scratching your head. This perennial fern has managed to keep a pretty low profile in the gardening world, and for good reason – reliable ...

Lomagramma cordipinna: The Mystery Fern That’s Hard to Pin Down

If you’ve stumbled across the name Lomagramma cordipinna in your plant research, you’re not alone in scratching your head. This perennial fern has managed to keep a pretty low profile in the gardening world, and for good reason – reliable information about this particular species is surprisingly scarce.

What We Know (And What We Don’t)

Here’s what we can say with confidence about Lomagramma cordipinna: it’s a perennial fern with a climbing or twining growth habit. Those relatively long stems can be either woody or herbaceous, suggesting it might scramble through other vegetation or climb supports in its natural habitat.

But here’s where things get tricky. Unlike many popular garden ferns, this particular species doesn’t seem to have established common names, and information about its native range, growing requirements, and garden performance is virtually non-existent in mainstream horticultural sources.

The Challenge for Home Gardeners

Without clear information about its native status, geographical distribution, or growing conditions, Lomagramma cordipinna presents several challenges for the home gardener:

  • Unknown hardiness zones make it impossible to determine if it will survive in your climate
  • Unclear growing conditions mean you’d be guessing about light, water, and soil requirements
  • No established sources make finding the plant itself nearly impossible
  • Unknown wildlife and pollinator benefits make it hard to justify garden space

What This Means for Your Garden

Given the lack of available information and sourcing difficulties, Lomagramma cordipinna isn’t a practical choice for most gardeners. Instead, consider these well-documented native fern alternatives that offer similar climbing or scrambling growth habits:

  • Native climbing ferns specific to your region
  • Established fern species with known growing requirements
  • Local native plants recommended by your regional native plant society

The Bottom Line

While Lomagramma cordipinna might be a legitimate fern species, the lack of readily available information, unclear native status, and difficulty in sourcing make it an impractical choice for home gardens. Your gardening energy and space are better invested in well-documented native plants that will thrive in your specific conditions and provide known benefits to local wildlife.

If you’re specifically interested in climbing or twining ferns, reach out to your local native plant society or botanical garden for recommendations of suitable species that are actually available and appropriate for your area. They’ll point you toward ferns that you can actually find, grow successfully, and enjoy for years to come.

Lomagramma Cordipinna

Classification

Group

Fern

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision
Division

Pteridophyta - Ferns

Subdivision
Class

Filicopsida

Subclass
Order

Polypodiales

Family

Dryopteridaceae Herter - Wood Fern family

Genus

Lomagramma J. Sm. - lomagramma

Species

Lomagramma cordipinna Holttum

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