North America Native Plant

Canyon Schiedea

Botanical name: Schiedea spergulina var. leiopoda

USDA symbol: SCSPL

Life cycle: perennial

Habit: subshrub

Native status: Native to Hawaii  

Synonyms: Schiedea spergulina A. Gray var. major Sherff (SCSPM)   

Canyon Schiedea: Hawaii’s Rare Mountain Treasure Meet the canyon schiedea (Schiedea spergulina var. leiopoda), one of Hawaii’s most precious and elusive native plants. This remarkable shrub represents the incredible biodiversity that makes the Hawaiian Islands so special, though sadly, it’s becoming increasingly difficult to find in the wild. What Makes ...

Rare plant alert!

Region: United States

Status: S2T1: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ Endangered: In danger of extinction throughout all or a significant portion of its range. ⚘

Region: United States

Canyon Schiedea: Hawaii’s Rare Mountain Treasure

Meet the canyon schiedea (Schiedea spergulina var. leiopoda), one of Hawaii’s most precious and elusive native plants. This remarkable shrub represents the incredible biodiversity that makes the Hawaiian Islands so special, though sadly, it’s becoming increasingly difficult to find in the wild.

What Makes Canyon Schiedea Special?

Canyon schiedea is a perennial shrub that’s uniquely Hawaiian through and through. Like other shrubs, it typically grows as a multi-stemmed woody plant, usually staying under 13-16 feet tall, with several stems emerging from or near the ground. What makes this plant truly special isn’t just its growth habit, but its incredible rarity and the story it tells about Hawaii’s natural heritage.

You might also see this plant referenced by its botanical synonym, Schiedea spergulina var. major, in older botanical literature, but canyon schiedea is the name that’s stuck.

Where Does Canyon Schiedea Call Home?

This native Hawaiian beauty is found exclusively in Hawaii, making it what botanists call an endemic species. It’s perfectly adapted to the unique conditions found nowhere else on Earth.

A Plant in Peril

Here’s where the story takes a serious turn: canyon schiedea is classified as Endangered, with a Global Conservation Status of S2T1. This means it’s in real trouble in the wild, with very few populations remaining. For native plant enthusiasts, this presents both an opportunity and a responsibility.

Should You Grow Canyon Schiedea?

The short answer is: probably not, unless you’re working with conservation organizations or have access to responsibly sourced material. Here’s why:

  • Rarity concerns: With its endangered status, wild populations need protection rather than collection
  • Limited availability: You’re unlikely to find this plant at your local nursery
  • Specialized needs: As a rare Hawaiian endemic, it likely has very specific growing requirements

However, if you’re passionate about Hawaiian native plants and conservation, supporting botanical gardens, native plant societies, or conservation organizations that work with rare species like canyon schiedea can make a real difference.

Growing Conditions and Care

While specific cultivation information for canyon schiedea is limited due to its rarity, we can make some educated guesses based on its Hawaiian shrub nature. Like most Hawaiian natives, it likely prefers:

  • Well-draining soil conditions
  • Protection from harsh winds
  • Conditions that mimic its natural habitat

For mainland gardeners, USDA hardiness zones would likely be very limited, probably only suitable for the warmest, most tropical-like conditions.

Supporting Hawaiian Native Plants

Instead of trying to grow canyon schiedea directly, consider these alternatives:

  • Support Hawaiian native plant conservation organizations
  • Visit botanical gardens that feature Hawaiian native species
  • If you live in Hawaii, work with local native plant groups to learn about conservation-friendly natives you can grow
  • Advocate for habitat protection and restoration efforts

The Bigger Picture

Canyon schiedea represents something much larger than just one rare plant. It’s a reminder of the incredible diversity that islands can produce and how quickly we can lose these natural treasures. While you might not be able to grow this particular species in your garden, learning about plants like canyon schiedea helps us all appreciate the importance of protecting native habitats and supporting conservation efforts.

Every rare plant has a story to tell, and canyon schiedea’s story is one of resilience, adaptation, and the urgent need for conservation. By understanding and respecting plants like this one, we become better gardeners and better stewards of our natural world.

Canyon Schiedea

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

Caryophyllaceae Juss. - Pink family

Genus

Schiedea Cham. & Schltdl. - schiedea

Species

Schiedea spergulina A. Gray - canyon schiedea

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