North America Native Plant

Smallhead Goldenweed

Botanical name: Pyrrocoma liatriformis

USDA symbol: PYLI

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Haplopappus integrifolius Porter ex A. Gray ssp. liatriformis (Greene) H.M. Hall (HAINL)  âš˜  Haplopappus liatriformis (Greene) H. St. John (HALI2)  âš˜  Haplopappus racemosus (Nutt.) Torr. ssp. liatriformis (Greene) D.D. Keck (HARAL2)   

Smallhead Goldenweed: A Rare Pacific Northwest Treasure for Your Native Garden If you’re passionate about native gardening in the Pacific Northwest, you might want to get acquainted with smallhead goldenweed (Pyrrocoma liatriformis). This charming little perennial is like finding a hidden gem in the native plant world – beautiful, ecologically ...

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) ⚘

Smallhead Goldenweed: A Rare Pacific Northwest Treasure for Your Native Garden

If you’re passionate about native gardening in the Pacific Northwest, you might want to get acquainted with smallhead goldenweed (Pyrrocoma liatriformis). This charming little perennial is like finding a hidden gem in the native plant world – beautiful, ecologically valuable, but requiring a bit of extra care and consideration due to its rarity.

What Makes Smallhead Goldenweed Special?

Smallhead goldenweed is a true Pacific Northwest native, naturally occurring only in Idaho, Oregon, and Washington. As a member of the sunflower family, it produces cheerful yellow daisy-like flowers that brighten up the landscape during late summer and fall when many other plants are winding down for the season.

This herbaceous perennial (meaning it dies back to the ground each winter and returns in spring) grows as a low, compact forb – essentially a non-woody flowering plant. Don’t let the weed in its name fool you; this plant is anything but weedy in the garden sense.

A Word of Caution: This Plant is Rare

Important conservation note: Smallhead goldenweed has a Global Conservation Status of S2, meaning it’s considered imperiled due to extreme rarity. There are typically only 6 to 20 known occurrences in the wild, with roughly 1,000 to 3,000 individual plants remaining in nature.

If you’re interested in growing this species, please only obtain plants or seeds from reputable native plant nurseries that use responsibly sourced, legally propagated material. Never collect from wild populations – every plant in nature counts for this species’ survival.

Garden Value and Aesthetic Appeal

Despite its rarity in the wild, smallhead goldenweed can be a wonderful addition to the right garden setting. Here’s what makes it appealing:

  • Bright yellow flowers that bloom when many plants are finishing their show
  • Compact, tidy growth habit perfect for smaller spaces
  • Excellent drought tolerance once established
  • Attracts native pollinators including bees and butterflies
  • Low maintenance requirements

Where to Use Smallhead Goldenweed in Your Landscape

This versatile native works beautifully in several garden settings:

  • Rock gardens: Its compact size and drought tolerance make it perfect for rocky, well-drained spots
  • Native plant gardens: An authentic choice for Pacific Northwest native landscapes
  • Xeriscaping: Excellent for water-wise gardening approaches
  • Border edging: Creates neat, colorful edges along paths or garden beds

Growing Conditions and Care

Smallhead goldenweed is surprisingly easy to grow once you understand its preferences:

Sunlight: Provide full sun for best flowering and compact growth.

Soil: Well-drained soil is absolutely essential. This plant won’t tolerate soggy conditions, especially in winter. Sandy or rocky soils work well.

Water: Drought tolerant once established, but provide regular water the first growing season. After that, minimal supplemental watering is needed.

Climate: Hardy in USDA zones 4-8, making it suitable for most Pacific Northwest gardens.

Planting and Care Tips

Getting smallhead goldenweed established successfully:

  • Plant in spring after the last frost date
  • Ensure excellent drainage – consider raised beds or slopes if your soil is heavy
  • Space plants according to their mature size (check with your nursery for specific variety dimensions)
  • Water regularly the first year, then reduce to occasional deep watering during dry spells
  • No fertilization needed – this plant prefers lean soils
  • Cut back spent flowers to encourage continued blooming

Supporting Pollinators and Wildlife

One of the best reasons to grow smallhead goldenweed is its value to native pollinators. The late-season flowers provide crucial nectar when other food sources are becoming scarce. Native bees and butterflies particularly appreciate this reliable food source as they prepare for winter or migration.

The Bottom Line

Smallhead goldenweed deserves a place in Pacific Northwest native gardens, but with an important caveat. As a rare species, growing it comes with the responsibility to source plants ethically and to help preserve this beautiful native for future generations. If you can obtain responsibly sourced plants, you’ll be rewarded with a charming, low-maintenance perennial that supports local pollinators and adds authentic regional character to your garden.

Consider smallhead goldenweed not just as a garden plant, but as a small act of conservation – bringing a rare native species into cultivation while supporting the native plant industry that works to preserve our regional flora.

Smallhead Goldenweed

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Pyrrocoma Hook. - goldenweed

Species

Pyrrocoma liatriformis Greene - smallhead goldenweed

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