North America Native Plant

Houndstongue Hawkweed

Botanical name: Hieracium cynoglossoides

USDA symbol: HICY

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Hieracium scouleri Hook. var. griseum (Rydb.) A. Nelson (HISCG)   

Houndstongue Hawkweed: A Lesser-Known Native Wildflower If you’re on the hunt for native plants that fly under the radar, you might have stumbled across Hieracium cynoglossoides, commonly known as houndstongue hawkweed. This perennial wildflower belongs to the diverse hawkweed family and calls the western United States home, but don’t expect ...

Houndstongue Hawkweed: A Lesser-Known Native Wildflower

If you’re on the hunt for native plants that fly under the radar, you might have stumbled across Hieracium cynoglossoides, commonly known as houndstongue hawkweed. This perennial wildflower belongs to the diverse hawkweed family and calls the western United States home, but don’t expect to find it at your local garden center just yet.

What Is Houndstongue Hawkweed?

Houndstongue hawkweed is a native perennial forb, which is just a fancy way of saying it’s a soft-stemmed herbaceous plant that comes back year after year. Unlike woody shrubs or trees, this plant lacks significant woody tissue and dies back to ground level during winter, emerging fresh each spring from buds at or below the soil surface.

You might also encounter this plant listed under its botanical synonym, Hieracium scouleri var. griseum, in older botanical references.

Where Does It Grow Naturally?

This western native has established itself across seven states in the American West: California, Idaho, Montana, Oregon, Utah, Washington, and Wyoming. It’s perfectly adapted to the unique growing conditions found throughout these diverse western landscapes.

Should You Plant Houndstongue Hawkweed?

Here’s where things get a bit tricky. While houndstongue hawkweed is undoubtedly a legitimate native plant with potential garden value, it falls into that category of botanical mystery plants – species that exist in the wild but have limited cultivation information available.

The Reality Check

If you’re hoping for detailed growing guides, specific care instructions, or nursery availability, you might be disappointed. This hawkweed species hasn’t made the leap into mainstream horticulture, which means:

  • Seeds or plants may be extremely difficult to find commercially
  • Specific growing requirements aren’t well documented
  • Garden performance and behavior are largely unknown
  • Hardiness zone information isn’t readily available

What We Do Know

Despite the limited cultivation information, we can make some educated assumptions based on its native habitat and plant family characteristics:

  • As a western native, it likely prefers well-draining soils
  • Most hawkweeds are relatively drought-tolerant once established
  • Being a perennial forb, it should return reliably each year
  • It’s adapted to the climate conditions found across its native range

Alternative Approaches

If you’re drawn to the idea of growing houndstongue hawkweed but frustrated by the lack of information, consider these options:

  • Focus on other well-documented native hawkweed species in your area
  • Choose native wildflowers with similar ecological roles but better cultivation information
  • Contact local native plant societies or botanical gardens for region-specific advice
  • Consider participating in citizen science projects that might help document this species better

The Bottom Line

Houndstongue hawkweed represents one of those fascinating native plants that exists in a botanical gray area – scientifically valid and potentially garden-worthy, but practically challenging for home gardeners. While its native status makes it an appealing choice for ecological gardening, the lack of cultivation information makes it a risky bet for most garden projects.

If you do manage to source this plant, treat it as an experimental addition and be prepared to learn through trial and observation. Sometimes the most rewarding gardening experiences come from working with plants that haven’t been thoroughly domesticated yet!

Houndstongue Hawkweed

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

Hieracium L. - hawkweed

Species

Hieracium cynoglossoides Arv.-Touv. - houndstongue hawkweed

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