North America Native Plant

Pinos Altos Fameflower

Botanical name: Phemeranthus humilis

USDA symbol: PHHU3

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Talinum humile Greene (TAHU2)   

Pinos Altos Fameflower: A Rare Southwestern Gem Worth Protecting Meet the Pinos Altos fameflower (Phemeranthus humilis), a little-known treasure of the American Southwest that’s as rare as it is intriguing. This petite perennial forb belongs to the fascinating world of fameflowers, plants that have adapted to some of our continent’s ...

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) ⚘

Pinos Altos Fameflower: A Rare Southwestern Gem Worth Protecting

Meet the Pinos Altos fameflower (Phemeranthus humilis), a little-known treasure of the American Southwest that’s as rare as it is intriguing. This petite perennial forb belongs to the fascinating world of fameflowers, plants that have adapted to some of our continent’s most challenging environments. But before you start planning where to plant one, there’s something important you need to know about this special species.

A Plant on the Edge

Here’s the thing about Pinos Altos fameflower – it’s genuinely rare in the wild. With a Global Conservation Status of S2, this species is considered Imperiled, meaning it faces real threats to its survival. Scientists estimate there are typically only 6 to 20 known populations remaining, with just 1,000 to 3,000 individual plants left in existence. That makes every single plant precious.

Where in the World?

This native beauty calls the American Southwest home, specifically Arizona and New Mexico. It’s perfectly at home in the rugged landscapes of these states, where it has evolved to thrive in conditions that would challenge most garden plants. The fact that it’s found in such a limited geographic area adds to both its rarity and its specialized growing requirements.

What Makes It Special?

As a member of the fameflower family, Pinos Altos fameflower is a herbaceous perennial forb – essentially a non-woody plant that comes back year after year. Think of it as nature’s answer to a succulent, built to handle the intense heat and sporadic rainfall of the desert Southwest. While we don’t have detailed records of its exact appearance, fameflowers typically produce delicate, ephemeral blooms that open for just part of the day – hence the fame in fameflower.

Should You Grow It?

Here’s where things get interesting. If you’re passionate about rare native plants and conservation, Pinos Altos fameflower could be a meaningful addition to your collection – but only under the right circumstances.

Grow it if you:

  • Are an experienced native plant gardener
  • Can source plants or seeds from reputable, conservation-minded suppliers
  • Live in USDA zones 7-9 (estimated based on its native range)
  • Have space for specialized rock gardens or xeriscapes
  • Want to contribute to conservation efforts

Skip it if you:

  • Are new to native plant gardening
  • Live outside the appropriate climate zones
  • Don’t have the time for specialized care
  • Can’t verify the source of your plants

Growing Conditions and Care

Given its native habitat in Arizona and New Mexico, Pinos Altos fameflower likely thrives in:

  • Extremely well-draining, rocky soils
  • Full sun exposure
  • Minimal supplemental watering once established
  • Protection from excess moisture, especially in winter

This isn’t a plant for the average perennial border. It needs the kind of specialized growing conditions you’d find in a dedicated rock garden or xeriscape designed specifically for desert plants.

The Conservation Connection

If you do decide to grow Pinos Altos fameflower, you’re not just adding an unusual plant to your garden – you’re becoming part of a conservation effort. Every responsibly cultivated plant represents a genetic backup for wild populations and helps raise awareness about our native plant heritage.

The key word here is responsibly. Never collect plants or seeds from wild populations, and always work with suppliers who can verify their plants are nursery-propagated, not wild-collected.

Pollinator and Wildlife Benefits

While specific data on Pinos Altos fameflower’s ecological relationships isn’t well-documented, fameflowers generally support small pollinators and may provide food for specialized desert wildlife. Every native plant, no matter how small, plays a role in supporting local ecosystems.

The Bottom Line

Pinos Altos fameflower isn’t for everyone, and that’s okay. Its rarity and specialized needs make it a plant for dedicated native plant enthusiasts rather than casual gardeners. But for those who appreciate the unique and want to support conservation efforts, it offers a chance to grow something truly special – a living piece of the American Southwest’s irreplaceable natural heritage.

Just remember: with great rarity comes great responsibility. If you choose to grow this remarkable little plant, make sure you’re doing it in a way that honors its conservation status and contributes to, rather than detracts from, its long-term survival in the wild.

Pinos Altos Fameflower

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

Portulacaceae Dumort. - Purslane family

Genus

Phemeranthus Raf. - flameflower

Species

Phemeranthus humilis (Greene) Kiger - Pinos Altos fameflower

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