Native Plants

Bracted Lousewort

Pedicularis bracteosa var. atrosanguinea

USDA symbol: PEBRA

perennial forb

Lower 48 states: native

Meet the bracted lousewort (Pedicularis bracteosa var. atrosanguinea), a fascinating native perennial that’s as unique as its quirky name suggests. While lousewort might not sound particularly appealing, don’t let the name fool you – this plant has nothing to do with lice! The unusual moniker comes from an old folk ...

Bracted Lousewort: A Rare Native Gem for Pacific Northwest Gardens

Meet the bracted lousewort (Pedicularis bracteosa var. atrosanguinea), a fascinating native perennial that’s as unique as its quirky name suggests. While lousewort might not sound particularly appealing, don’t let the name fool you – this plant has nothing to do with lice! The unusual moniker comes from an old folk belief that livestock grazing on these plants would develop lice, though there’s no scientific basis for this claim.

What Makes Bracted Lousewort Special?

This particular variety of bracted lousewort is a true Pacific Northwest native, currently documented only in Washington state. As a herbaceous perennial forb, it lacks woody stems but returns year after year from its root system. What makes this plant particularly intriguing is its status as a native species that’s perfectly adapted to local growing conditions.

Where Does It Grow?

Bracted lousewort is native to Washington state, making it a true regional specialty for Pacific Northwest gardeners. Its limited geographic distribution makes it a rare find in the gardening world.

  • Species observed
  • No observations

Should You Plant Bracted Lousewort?

Here’s where things get interesting – and a bit challenging. While this native plant would theoretically be a wonderful addition to a Pacific Northwest native garden, there are some important considerations:

  • Rarity factor: This variety appears to be quite rare, with limited distribution
  • Limited availability: You’re unlikely to find this plant at your local nursery
  • Specialized needs: Like many native plants, it likely has specific growing requirements
  • Conservation concerns: Its limited range suggests it may need protection rather than cultivation

Growing Conditions and Care

Unfortunately, specific growing information for this particular variety is limited. However, if you’re determined to grow native louseworts, here’s what we generally know about the plant family:

  • These plants are often semi-parasitic, meaning they may depend on other plants for some nutrients
  • They typically prefer cooler, moist conditions
  • Mountain and subalpine environments are their natural habitat
  • They can be challenging to establish in typical garden settings

The Responsible Gardener’s Approach

If you’re interested in adding this rare native to your garden, proceed with caution and conscience. Only source plants from reputable native plant nurseries that can verify their plants weren’t collected from wild populations. Better yet, consider supporting conservation efforts for this species instead.

For gardeners wanting to support native pollinators and wildlife with easier-to-grow alternatives, consider other Pacific Northwest natives like:

  • Native sedums
  • Western columbine
  • Pacific bleeding heart
  • Native asters and goldenrods

The Bottom Line

Bracted lousewort represents the fascinating diversity of our native plant communities, but it’s not your typical garden center find. Its rarity and specialized needs make it more of a conservation concern than a garden staple. For most gardeners, appreciating this plant in its natural habitat while choosing more readily available natives for home landscapes is the most responsible approach.

If you do encounter this plant in the wild, take a moment to appreciate its uniqueness – you’re looking at a true regional endemic that calls the Pacific Northwest home.

Pedicularis bracteosa var. atrosanguinea is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Pedicularis bracteosa var. atrosanguinea is also known as:

Pedicularis atrosanguinea Pennell & | USDA symbol: PEAT6

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Subclass: Asteridae
Order: Scrophulariales
Family: Scrophulariaceae Juss. - Figwort family
Genus: Pedicularis L. - lousewort

Species: Pedicularis bracteosa Benth. - bracted lousewort

Variety: Pedicularis bracteosa Benth. var. atrosanguinea (Pennell & J.W. Thomp.) Cronquist - bracted lousewort

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