North America Native Plant

Hairy Bugseed

Botanical name: Corispermum villosum

USDA symbol: COVI5

Life cycle: annual

Habit: forb

Native status: Native to Canada âš˜ Native to the lower 48 states  

Synonyms: Corispermum emarginatum Rydb. (COEM2)  âš˜  Corispermum hyssopifolium L. var. emarginatum (Rydb.) B. Boivin (COHYE)  âš˜  Corispermum orientale Lam. var. emarginatum (Rydb.) J.F. Macbr. (COORE)   

Hairy Bugseed: The Humble Prairie Pioneer You’ve Probably Never Heard Of If you’re looking for a flashy garden showstopper, hairy bugseed (Corispermum villosum) probably isn’t going to make your wish list. But if you’re interested in native plants that play important ecological roles or you’re working on a prairie restoration ...

Hairy Bugseed: The Humble Prairie Pioneer You’ve Probably Never Heard Of

If you’re looking for a flashy garden showstopper, hairy bugseed (Corispermum villosum) probably isn’t going to make your wish list. But if you’re interested in native plants that play important ecological roles or you’re working on a prairie restoration project, this unassuming little annual might just be worth a second look.

What Exactly Is Hairy Bugseed?

Hairy bugseed is a native North American annual forb – basically a non-woody plant that completes its entire life cycle in one growing season. Don’t let the bugseed name fool you into thinking it attracts insects; this plant is actually wind-pollinated and produces small, seed-like fruits that were historically thought to resemble tiny bugs.

You might also see this plant listed under its synonyms: Corispermum emarginatum, Corispermum hyssopifolium var. emarginatum, or Corispermum orientale var. emarginatum. Botanists love to keep us on our toes with name changes!

Where Does Hairy Bugseed Call Home?

This hardy little plant is truly a child of North America, native to both Canada and the lower 48 states. You can find it growing naturally across a impressive range that includes Alberta, Manitoba, Ontario, Quebec, Saskatchewan, Northwest Territories, Colorado, Idaho, Illinois, Minnesota, Missouri, Montana, New Mexico, North Dakota, Oregon, South Dakota, Utah, Washington, Wisconsin, and Wyoming. That’s quite the travel resume!

Should You Grow Hairy Bugseed in Your Garden?

Here’s where we need to set realistic expectations. Hairy bugseed isn’t going to win any beauty contests. It produces small, inconspicuous greenish flowers and has narrow, somewhat fuzzy leaves. If you’re after stunning blooms or eye-catching foliage, you’ll want to look elsewhere.

However, there are some compelling reasons you might want to include it in your landscape:

  • It’s excellent for prairie restoration and naturalized areas
  • Acts as a pioneer species that helps establish vegetation on disturbed soils
  • Provides erosion control with its root system
  • Supports the ecological web as a native species
  • Requires virtually no maintenance once established

What Kind of Garden Does Hairy Bugseed Prefer?

This isn’t a plant for formal flower beds or manicured landscapes. Hairy bugseed thrives in:

  • Prairie gardens and meadows
  • Naturalized areas
  • Restoration projects
  • Areas with poor or disturbed soil
  • Xeriscapes and drought-tolerant landscapes

Growing Conditions and Care

The good news is that hairy bugseed is refreshingly low-maintenance. It grows well in USDA hardiness zones 3-8 and prefers:

  • Soil: Sandy, well-drained soils (though it tolerates poor conditions)
  • Sun: Full sun exposure
  • Water: Drought tolerant once established; doesn’t need regular watering
  • Maintenance: Minimal – this plant actually prefers to be left alone

Planting and Propagation Tips

Growing hairy bugseed is pretty straightforward:

  • Start from seed, as this is the most practical method
  • Direct sow in fall or early spring
  • Barely cover seeds with soil – they need light to germinate
  • Be patient – germination can be irregular
  • Once established, plants will self-seed for future years

Wildlife and Pollinator Benefits

While hairy bugseed doesn’t offer nectar to pollinators (remember, it’s wind-pollinated), it does provide seeds for birds and small mammals. It’s part of the complex prairie ecosystem that supports biodiversity in more subtle ways than showy flowering plants.

The Bottom Line

Hairy bugseed isn’t going to transform your garden into a magazine-worthy showcase, but it has its place in the native plant world. If you’re working on prairie restoration, dealing with difficult soils, or simply want to support native plant communities, this humble annual can be a valuable addition. Just don’t expect it to steal the spotlight – it’s more of a behind-the-scenes player in nature’s grand production.

For most home gardeners seeking ornamental value, you might be better served by showier native alternatives like purple coneflower or black-eyed Susan. But if you appreciate plants for their ecological roles rather than just their looks, hairy bugseed might just earn a spot in your heart – and your restoration project.

Hairy Bugseed

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Caryophyllidae

Order

Caryophyllales

Family

Chenopodiaceae Vent. - Goosefoot family

Genus

Corispermum L. - bugseed

Species

Corispermum villosum Rydb. - hairy bugseed

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