North America Native Plant

Longbeard Mariposa Lily

Botanical name: Calochortus longebarbatus var. peckii

USDA symbol: CALOP4

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Longbeard Mariposa Lily: A Rare Oregon Native Worth Protecting Meet the longbeard mariposa lily (Calochortus longebarbatus var. peckii), one of Oregon’s most elusive native wildflowers. This perennial gem belongs to the fascinating world of mariposa lilies, but finding detailed information about this particular variety is like searching for a needle ...

Rare plant alert!

Region: Conservation status by state

Status: S4T3: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals. ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘

Longbeard Mariposa Lily: A Rare Oregon Native Worth Protecting

Meet the longbeard mariposa lily (Calochortus longebarbatus var. peckii), one of Oregon’s most elusive native wildflowers. This perennial gem belongs to the fascinating world of mariposa lilies, but finding detailed information about this particular variety is like searching for a needle in a haystack – and that’s precisely what makes it so special.

A True Oregon Native

The longbeard mariposa lily is a bona fide native plant of the lower 48 states, with its known distribution limited to Oregon. This makes it a true regional treasure, evolved specifically to thrive in the unique conditions of the Pacific Northwest.

What Makes This Plant Special

As a perennial forb, the longbeard mariposa lily lacks the woody stems of shrubs and trees, instead emerging fresh each growing season from underground bulbs. Like other members of the mariposa lily family, it likely produces stunning cup-shaped flowers that seem almost too delicate for the wild landscapes where they grow.

Rarity Alert: Handle with Care

Here’s where things get serious, fellow gardeners. This variety carries a Global Conservation Status of S4T3, indicating it faces some level of conservation concern. While this doesn’t mean it’s critically endangered, it does mean we need to be thoughtful stewards if we’re considering adding it to our gardens.

If you’re interested in growing this rare beauty, please ensure any plants or seeds come from responsible, ethical sources. Never collect from wild populations, as this could harm already vulnerable communities of these special plants.

The Growing Challenge

Here’s the honest truth: specific growing information for Calochortus longebarbatus var. peckii is remarkably scarce. This rarity extends beyond just the plant itself to knowledge about its cultivation needs. What we do know is that as a native Oregon perennial, it has adapted to the state’s unique climate patterns and soil conditions.

Should You Grow It?

The longbeard mariposa lily presents a fascinating dilemma for native plant enthusiasts:

  • Pros: You’d be growing a true Oregon native that supports local ecosystems and preserves genetic diversity
  • Cons: Limited availability, conservation concerns, and minimal growing guidance make this a challenging choice

Alternative Considerations

If the longbeard mariposa lily has captured your imagination but seems too challenging or risky to pursue, consider exploring other native Oregon wildflowers that are better documented and more readily available through responsible nurseries. Your local native plant society can point you toward beautiful alternatives that won’t put rare populations at risk.

The Bottom Line

The longbeard mariposa lily represents the mysterious, wild heart of Oregon’s native flora. While it might not be the easiest addition to your garden, its very existence reminds us of the incredible diversity hiding in our local landscapes. Sometimes the best way to appreciate a rare plant is simply knowing it’s out there, quietly persisting in its native habitat.

If you do decide to pursue growing this rare variety, proceed with respect, patience, and a commitment to conservation. After all, we’re not just gardeners – we’re temporary stewards of some pretty amazing plants.

Longbeard Mariposa Lily

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

Liliales

Family

Liliaceae Juss. - Lily family

Genus

Calochortus Pursh - mariposa lily

Species

Calochortus longebarbatus S. Watson - longbeard mariposa lily

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