North America Native Plant

Sierra Blanca Cinquefoil

Botanical name: Potentilla sierraeblancae

USDA symbol: POSI4

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Sierra Blanca Cinquefoil: A Rare New Mexican Native Worth Protecting Meet the Sierra Blanca cinquefoil (Potentilla sierraeblancae), one of New Mexico’s most elusive native plants. This little-known member of the rose family is so rare that even botanists are still figuring out exactly where it fits in the plant kingdom. ...

Rare plant alert!

Region: Conservation status by state

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

Sierra Blanca Cinquefoil: A Rare New Mexican Native Worth Protecting

Meet the Sierra Blanca cinquefoil (Potentilla sierraeblancae), one of New Mexico’s most elusive native plants. This little-known member of the rose family is so rare that even botanists are still figuring out exactly where it fits in the plant kingdom. If you’ve never heard of it, you’re definitely not alone – this perennial forb is about as exclusive as native plants get!

A True New Mexican Treasure

Sierra Blanca cinquefoil is native to the lower 48 states, with its known distribution limited to New Mexico. This makes it a true regional specialty – think of it as the botanical equivalent of a local craft brewery that only distributes in one state. As a perennial forb, it’s an herbaceous plant that comes back year after year, lacking the woody stems of shrubs and trees but packing plenty of character in its soft, green growth.

Rarity Alert: Handle with Care

Here’s where things get serious: Sierra Blanca cinquefoil carries a Global Conservation Status of S2?, which essentially means we think this plant is rare, but we’re still working out the details. In the plant conservation world, this is a red flag that signals extreme caution. This isn’t your typical garden center find – it’s more like discovering a rare vintage wine in your grandmother’s basement.

If you’re considering adding this species to your garden, please proceed with the utmost responsibility. Any plant material should only be sourced from reputable native plant nurseries that can guarantee ethical collection practices and proper provenance.

What We Know (And Don’t Know)

Unfortunately, detailed information about Sierra Blanca cinquefoil’s specific growing requirements, appearance, and garden performance is extremely limited. As a member of the Potentilla genus, it’s related to other cinquefoils that typically feature:

  • Five-petaled flowers (hence cinquefoil, which means five leaves)
  • Compound leaves with multiple leaflets
  • Generally hardy, adaptable nature
  • Preference for well-draining soils

However, we can’t assume Sierra Blanca cinquefoil shares all these characteristics without more specific research.

Should You Grow It?

Given its rarity status and the limited information available, Sierra Blanca cinquefoil is probably not the best choice for most home gardeners. Instead of potentially impacting wild populations of this rare species, consider these alternatives:

  • Other native New Mexican Potentilla species
  • Well-documented native wildflowers with similar growing conditions
  • Established native plants that support local ecosystems without conservation concerns

If you’re a serious native plant enthusiast or involved in conservation efforts, this species might be worth pursuing through proper botanical channels – but always prioritize the plant’s conservation over personal garden goals.

The Bottom Line

Sierra Blanca cinquefoil represents the mystery and wonder that still exists in our native flora. While it may not be destined for your backyard border, its rarity reminds us of the importance of protecting and studying our native plant heritage. Sometimes the best way to appreciate a rare plant is to support its conservation in the wild rather than cultivation in our gardens.

For New Mexican gardeners looking to support native biodiversity, focus on well-established native species that can thrive in cultivation while leaving the rare gems like Sierra Blanca cinquefoil to the experts working on their conservation and study.

Sierra Blanca 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 sierrae-blancae Wooton & Rydb. - Sierra Blanca cinquefoil

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