North America Native Plant

Siskiyou Bedstraw

Botanical name: Galium ambiguum siskiyouense

USDA symbol: GAAMS2

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Galium ambiguum W. Wight var. siskiyouense Ferris (GAAMS)   

Siskiyou Bedstraw: A Rare Native Wildflower Worth Knowing Meet Siskiyou bedstraw (Galium ambiguum siskiyouense), a charming yet elusive native wildflower that calls the rugged landscapes of California and Oregon home. This perennial forb might not be the showiest plant in your garden, but it carries the quiet dignity of a ...

Siskiyou Bedstraw: A Rare Native Wildflower Worth Knowing

Meet Siskiyou bedstraw (Galium ambiguum siskiyouense), a charming yet elusive native wildflower that calls the rugged landscapes of California and Oregon home. This perennial forb might not be the showiest plant in your garden, but it carries the quiet dignity of a true regional native—one that’s perfectly adapted to its mountainous homeland.

What Makes Siskiyou Bedstraw Special

As a member of the bedstraw family, this plant embodies the understated beauty that makes native wildflowers so appealing to those in the know. Siskiyou bedstraw is classified as a forb—essentially a non-woody flowering plant that returns year after year from its perennial roots. Think of it as nature’s version of a reliable friend: not flashy, but dependable and perfectly suited to its environment.

Where You’ll Find This Native Beauty

This particular variety of bedstraw has a very specific address: the mountainous regions of California and Oregon, particularly the Siskiyou area that gives it its name. Its limited geographic distribution makes it a true regional specialty—like a local wine that you can only find in certain valleys.

A Word of Caution for Gardeners

Here’s where things get interesting (and a bit challenging) for native plant enthusiasts. Siskiyou bedstraw appears to be quite rare, with limited information available about its specific growing requirements and characteristics. This scarcity suggests that if you’re lucky enough to encounter this plant, you should appreciate it where it grows naturally rather than attempting to cultivate it in your garden.

The rarity of detailed information about this plant is actually telling—it likely indicates that Siskiyou bedstraw has very specific habitat requirements and may not adapt well to typical garden conditions.

For the Native Plant Enthusiast

If you’re drawn to the idea of growing bedstraws in your native garden, consider these alternatives that are better documented and more readily available:

  • Other Galium species native to your specific region
  • Well-established native forbs with similar ecological roles
  • Regional wildflower mixes that support local ecosystems

The Bottom Line

While Siskiyou bedstraw represents the fascinating diversity of our native flora, its apparent rarity and limited documentation make it more of a look but don’t touch species for most gardeners. Sometimes the best way to support a native plant is to protect its natural habitat rather than trying to bring it into cultivation.

If you’re hiking in the Siskiyou regions of California or Oregon and happen to spot this elusive bedstraw, consider yourself lucky—you’ve encountered a true local specialty. Take photos, enjoy the moment, and let it continue thriving in its natural home where it clearly knows how to make a living.

For your native garden, focus on well-documented local natives that will give you the satisfaction of successful cultivation while still supporting your regional ecosystem. After all, there are plenty of beautiful native plants that are both rare enough to be special and common enough to grow successfully!

Siskiyou Bedstraw

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

Rubiales

Family

Rubiaceae Juss. - Madder family

Genus

Galium L. - bedstraw

Species

Galium ambiguum W. Wight - yolla bolly bedstraw

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