North America Native Plant

Mogollon Lousewort

Botanical name: Pedicularis parryi mogollonica

USDA symbol: PEPAM4

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Pedicularis mogollonica Greene (PEMO12)  âš˜  Pedicularis parryi A. Gray var. mogollonica (Greene) Dorn (PEPAM)   

Mogollon Lousewort: A Rare Mountain Wildflower Worth the Challenge If you’re the type of gardener who loves a good challenge and has a soft spot for unusual native wildflowers, let me introduce you to Mogollon lousewort (Pedicularis parryi mogollonica). This quirky little perennial is definitely not your average garden flower, ...

Rare plant alert!

Region: Conservation status by state

Status: S5T2T4Q: Status is uncertain but is somewhere between the following rankings: Uncertain taxonomy: ⚘ Subspecies or variety is 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) ⚘ Subspecies or varieties is apparently secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the region or more than 10,000 individuals ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Mogollon Lousewort: A Rare Mountain Wildflower Worth the Challenge

If you’re the type of gardener who loves a good challenge and has a soft spot for unusual native wildflowers, let me introduce you to Mogollon lousewort (Pedicularis parryi mogollonica). This quirky little perennial is definitely not your average garden flower, but for the right gardener in the right location, it can be a truly rewarding addition.

What Makes Mogollon Lousewort Special?

Mogollon lousewort is a fascinating member of the broomrape family that produces distinctive hooded flowers in shades of purple and pink. These tubular blooms cluster together in dense spikes, creating an eye-catching display that’s unlike anything you’ll find at your typical garden center. As a forb (that’s botanist-speak for a non-woody flowering plant), it grows as a perennial, coming back year after year when conditions are right.

Don’t let the name lousewort put you off – this plant won’t attract lice to your garden! The unusual common name comes from an old folk belief that livestock grazing on these plants would develop lice, though there’s no scientific basis for this concern.

Where Does It Come From?

This native beauty calls the high-elevation regions of the American Southwest home. You’ll find it naturally growing in Arizona, Colorado, New Mexico, Utah, and Wyoming, typically in mountainous areas where the air is thin and the growing season is short.

Is It Right for Your Garden?

Here’s where things get interesting – and challenging. Mogollon lousewort isn’t your typical backyard flower. It’s what we call a specialist species, meaning it has very specific needs that can be tough to replicate in a typical garden setting.

Consider this plant if you:

  • Live in USDA hardiness zones 4-7
  • Have experience with challenging alpine or high-elevation plants
  • Enjoy rock gardens or native plant collections
  • Have well-draining soil and can provide cool growing conditions
  • Are passionate about supporting native plant conservation

Think twice if you:

  • Live in hot, humid climates
  • Prefer low-maintenance gardening
  • Have heavy, clay soils
  • Are looking for a reliable bloomer for mass plantings

A Word About Conservation

Before we dive into growing tips, there’s something important to know: Mogollon lousewort has a conservation status that suggests it may be uncommon or declining in parts of its range. This means if you’re interested in growing it, you should only source plants or seeds from reputable native plant nurseries that practice responsible collection methods. Never collect plants from the wild – this can harm already vulnerable populations.

Growing Mogollon Lousewort Successfully

If you’re up for the challenge, here’s what this mountain wildflower needs to thrive:

Location and Soil

Think high and dry. This plant evolved in mountain environments, so it needs excellent drainage and cooler temperatures than most garden plants. A rock garden or alpine garden setup works best, with gravelly, well-draining soil that mimics its natural habitat.

Light and Water

Mogollon lousewort appreciates partial shade to full sun, but in hotter climates, some afternoon shade is essential. Water sparingly – these plants are adapted to areas with limited summer rainfall and can easily rot in soggy conditions.

Planting Tips

Start with small plants from a reputable native plant nursery rather than trying to grow from seed, as germination can be tricky. Plant in early spring or fall, and be patient – establishment can take time.

Wildlife and Pollinator Benefits

Despite its challenging nature, Mogollon lousewort is worth growing for its pollinator value. The tubular flowers are particularly attractive to bees and other pollinators, providing nectar when many other flowers have finished blooming. In its native habitat, it plays an important role in supporting mountain ecosystem pollinators.

The Bottom Line

Mogollon lousewort isn’t for every gardener or every garden, but for those who appreciate rare native plants and enjoy gardening challenges, it can be incredibly rewarding. Its unique flowers, conservation value, and pollinator benefits make it a worthwhile addition to specialized native plant gardens.

Just remember: success with this plant requires patience, the right growing conditions, and most importantly, responsibly sourced plants. If you’re new to native gardening, you might want to start with some easier native alternatives and work your way up to this mountain beauty.

Have you tried growing challenging native wildflowers like Mogollon lousewort? The journey might be tough, but the reward of seeing these rare beauties thrive in your garden makes it all worthwhile!

Mogollon Lousewort

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

Scrophulariales

Family

Scrophulariaceae Juss. - Figwort family

Genus

Pedicularis L. - lousewort

Species

Pedicularis parryi A. Gray - Parry's lousewort

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