North America Native Plant

Parasitic Lady’s Tresses

Botanical name: Schiedeella arizonica

USDA symbol: SCAR8

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Schiedeella fauci-sanguinea auct. non (D. Dod) Burns-Balogh (SCFA4)  âš˜  Schiedeella parasitica auct. non (A. Rich. & Galeotti) Schltr. (SCPA28)  âš˜  Spiranthes parasitica auct. non A. Rich. & Galeotti (SPPA4)   

Parasitic Lady’s Tresses: A Mysterious Native Orchid You Can’t (and Shouldn’t Try to) Grow Meet one of North America’s most enigmatic native orchids: parasitic lady’s tresses (Schiedeella arizonica). This little-known perennial forb represents one of nature’s more unusual botanical strategies, and while you might be curious about adding native plants ...

Parasitic Lady’s Tresses: A Mysterious Native Orchid You Can’t (and Shouldn’t Try to) Grow

Meet one of North America’s most enigmatic native orchids: parasitic lady’s tresses (Schiedeella arizonica). This little-known perennial forb represents one of nature’s more unusual botanical strategies, and while you might be curious about adding native plants to your garden, this particular species is definitely not heading to your local nursery anytime soon.

What Makes This Plant So Special (and Challenging)?

Parasitic lady’s tresses belongs to the orchid family, but unlike the showy orchids you might know, this native species has evolved a fascinating and complex lifestyle. As its common name suggests, this plant has parasitic tendencies, which means it depends on relationships with other organisms to survive. This isn’t your typical plant it and water it garden addition!

As a perennial forb, parasitic lady’s tresses lacks significant woody tissue and maintains its life cycle through underground structures. The plant produces the characteristic spiraled flower arrangement that gives lady’s tresses orchids their poetic common name.

Where You Might Encounter This Rare Beauty

This native orchid calls the American Southwest home, specifically Arizona, New Mexico, and Texas. It’s truly a regional specialist, adapted to the unique conditions of these southwestern ecosystems.

Why You Can’t Grow It (But That’s Actually Okay)

Here’s the thing about parasitic lady’s tresses: even if you could find seeds or plants, you almost certainly couldn’t successfully grow them in a typical garden setting. Here’s why:

  • Complex parasitic relationships with other plants or fungi make cultivation nearly impossible
  • Highly specialized soil and environmental requirements that are difficult to replicate
  • Limited availability due to its specialized nature and potentially sensitive status
  • Unknown propagation methods and growing conditions

Native Alternatives for Orchid Lovers

If you’re drawn to the idea of growing native orchids in your southwestern garden, consider these more garden-friendly alternatives:

  • Wild bergamot or other native wildflowers that support pollinators
  • Native grasses that provide habitat for wildlife
  • Regional wildflower mixes designed for your specific area

The Ecological Importance

While you can’t grow parasitic lady’s tresses in your backyard, it plays an important role in its native ecosystems. These specialized plants contribute to the biodiversity of southwestern plant communities and represent millions of years of evolutionary adaptation to specific environmental niches.

What Gardeners Can Do Instead

Rather than trying to cultivate this specialized species, native plant enthusiasts can:

  • Support habitat conservation in areas where these orchids naturally occur
  • Choose other native plants that are more suitable for cultivation
  • Create pollinator-friendly gardens using regionally appropriate native species
  • Learn about and appreciate the complexity of native plant communities

The Bottom Line

Parasitic lady’s tresses reminds us that not every native plant is destined for our gardens—and that’s perfectly fine! Some species are meant to remain wild, thriving in their specialized ecological niches. As gardeners, we can appreciate these botanical marvels from afar while focusing our cultivation efforts on native plants that can actually thrive under our care.

If you’re passionate about supporting native orchids and other specialized plants, consider supporting conservation organizations that work to protect natural habitats where these remarkable species can continue their ancient relationships with the land.

Parasitic Lady’s Tresses

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Liliidae

Order

Orchidales

Family

Orchidaceae Juss. - Orchid family

Genus

Schiedeella Schltr. - lady's tresses

Species

Schiedeella arizonica P.M. Brown - parasitic lady's tresses

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