North America Non-native Plant

Manyseed Goosefoot

Botanical name: Chenopodium polyspermum var. acutifolium

USDA symbol: CHPOA

Life cycle: annual

Habit: forb

Native status: Non-native, reproduces and persists in the wild in Canada âš˜ Non-native, reproduces and persists in the wild in the lower 48 states  

Manyseed Goosefoot: A Common Weedy Annual You Probably Don’t Want in Your Garden If you’ve stumbled across the term manyseed goosefoot while researching plants for your garden, you might be wondering whether this annual herb deserves a spot in your landscape. The short answer? Probably not, unless you’re specifically interested ...

Manyseed Goosefoot: A Common Weedy Annual You Probably Don’t Want in Your Garden

If you’ve stumbled across the term manyseed goosefoot while researching plants for your garden, you might be wondering whether this annual herb deserves a spot in your landscape. The short answer? Probably not, unless you’re specifically interested in weedy species or creating habitat that mimics disturbed natural areas.

What Exactly Is Manyseed Goosefoot?

Manyseed goosefoot (Chenopodium polyspermum var. acutifolium) is an annual forb—basically a non-woody herbaceous plant that completes its entire life cycle in one growing season. As a member of the goosefoot family, it’s related to more familiar plants like spinach, beets, and quinoa, though it’s far less impressive than its cultivated cousins.

This particular variety is a non-native species that originally hails from Europe and western Asia. It has successfully established itself across North America, where it reproduces on its own and persists without any human help—a classic example of a naturalized plant.

Where You’ll Find It Growing

Manyseed goosefoot has spread across a surprising number of states and provinces, including British Columbia, Manitoba, New Brunswick, Ontario, Quebec, Saskatchewan, California, Colorado, Illinois, Iowa, Maine, Massachusetts, New York, North Carolina, Ohio, Oregon, Pennsylvania, Tennessee, Vermont, and Wisconsin.

Why Most Gardeners Skip This One

Let’s be honest—manyseed goosefoot isn’t winning any beauty contests. This annual herb produces small, inconspicuous greenish flowers that most people would barely notice. The plant itself has a weedy appearance that’s more at home in vacant lots and disturbed soil than in carefully planned garden beds.

Here’s what you can expect if this plant shows up in your yard:

  • Small, unremarkable flowers that are wind-pollinated (so limited benefits for pollinators)
  • A tendency to pop up in disturbed areas, garden edges, and anywhere soil has been turned
  • Quick growth and prolific seed production—hence the manyseed part of its name
  • An overall weedy appearance that most gardeners prefer to remove

Growing Conditions (If You’re Curious)

Should you decide you want to observe this plant or include it in a naturalized area, manyseed goosefoot is refreshingly low-maintenance. It’s adapted to poor soils and disturbed conditions, thriving in full sun to partial shade. As an annual, it can grow in most temperate USDA zones where the growing season is long enough for it to complete its life cycle.

The plant essentially takes care of itself once established, requiring no supplemental water, fertilizer, or special care. In fact, trying to pamper it would probably be counterproductive—this is a plant that’s evolved to succeed in tough conditions.

Better Native Alternatives

Instead of embracing manyseed goosefoot, consider these native alternatives that provide similar ecological functions but with greater benefits to local wildlife:

  • Wild spinach (Chenopodium album) – While also weedy, this native provides better wildlife value
  • Native lamb’s quarters species – Offer food for birds and beneficial insects
  • Wild amaranth species – Provide seeds for birds and can be quite attractive
  • Native annual wildflowers – Support pollinators while adding genuine beauty to your space

The Bottom Line

While manyseed goosefoot isn’t necessarily harmful to grow, it’s also not particularly beneficial or attractive. Most gardeners who encounter it will treat it as a weed to be removed rather than a desirable plant to cultivate. If you’re looking to support local ecosystems and create beautiful garden spaces, you’ll find much better options among native plant species that have co-evolved with local wildlife.

Save your garden space for plants that truly deserve it—your local pollinators, birds, and neighbors will thank you for the upgrade!

Manyseed Goosefoot

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

Chenopodium L. - goosefoot

Species

Chenopodium polyspermum L. - manyseed goosefoot

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