North America Native Plant

Morefield’s Cinquefoil

Botanical name: Potentilla morefieldii

USDA symbol: POMO18

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Morefield’s Cinquefoil: A Rare California Treasure Worth Protecting Meet Morefield’s cinquefoil (Potentilla morefieldii), one of California’s most precious and endangered wildflowers. This tiny perennial holds a special place in the Golden State’s botanical heritage, though you’re unlikely to stumble across it during your weekend hiking adventures—and that’s exactly why it ...

Rare plant alert!

Region: Conservation status by state

Status: S2: Status is uncertain but is somewhere between the following rankings: 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) ⚘

Morefield’s Cinquefoil: A Rare California Treasure Worth Protecting

Meet Morefield’s cinquefoil (Potentilla morefieldii), one of California’s most precious and endangered wildflowers. This tiny perennial holds a special place in the Golden State’s botanical heritage, though you’re unlikely to stumble across it during your weekend hiking adventures—and that’s exactly why it deserves our attention and protection.

A True California Native with a Story to Tell

Morefield’s cinquefoil is a native son of California, found nowhere else in the world. This herbaceous perennial belongs to the rose family and represents one of nature’s most exclusive clubs—plants so rare that botanists get genuinely excited when they spot one in the wild.

Currently, this little champion calls only California home, clinging to existence in a handful of mountainous locations. The plant’s entire known range is concentrated in very specific habitats within the state, making it a true California endemic.

Why This Plant Matters (And Why You Probably Shouldn’t Grow It)

Here’s where we need to have a serious conversation. Morefield’s cinquefoil carries a Global Conservation Status of S2, which translates to Imperiled. In plain English? This plant is in trouble—big trouble. Scientists estimate there are only 6 to 20 known populations remaining, with perhaps 1,000 to 3,000 individual plants left in the entire world.

While the gardener in you might be thinking I want to help by growing this rare beauty, the reality is more complex. Growing imperiled species without proper sourcing can actually harm wild populations if seeds or plants are collected from already stressed natural areas.

What Makes This Cinquefoil Special

As a member of the Potentilla genus, Morefield’s cinquefoil shares characteristics with its more common cousins—it’s a low-growing perennial forb (that’s botanist-speak for a soft-stemmed, non-woody plant). Like other cinquefoils, it likely produces small, cheerful flowers that would charm any wildflower enthusiast.

The plant’s herbaceous nature means it dies back to the ground each winter, emerging fresh each spring from its perennial root system—assuming its delicate habitat remains undisturbed.

A Better Way to Support Native Plants

Instead of seeking out this rare treasure for your garden, consider these alternatives that will give you the cinquefoil experience while supporting conservation:

  • Plant other native California Potentilla species that are more common and readily available
  • Support organizations working to protect rare plant habitats
  • Choose native plants that provide similar ecological benefits without conservation concerns
  • If you’re a serious native plant enthusiast, work with botanical gardens or conservation groups that may have legitimate propagation programs

The Takeaway

Morefield’s cinquefoil represents something precious in our natural world—a plant so specialized and rare that its very existence is a reminder of nature’s incredible diversity and fragility. While we can’t recommend adding this imperiled species to your garden, we can appreciate its story and use it as inspiration to choose other native California plants that will thrive in cultivation.

Sometimes the best way to love a plant is to leave it alone and protect the places where it belongs. In the case of Morefield’s cinquefoil, that means supporting habitat conservation and choosing abundant native alternatives that can bring the beauty of California’s wildflowers to your own backyard—without putting rare species at risk.

Morefield’s Cinquefoil

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Rosales

Family

Rosaceae Juss. - Rose family

Genus

Potentilla L. - cinquefoil

Species

Potentilla morefieldii Ertter, nom. inq. - Morefield's cinquefoil

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