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North America Native Plant

Hispid Starbur

Hispid Starbur: What You Need to Know About This Spreading Ground Cover If you’ve ever noticed a low-growing plant with small yellow flowers and prickly, bristly leaves taking over disturbed areas in your garden, you might have encountered hispid starbur (Acanthospermum hispidum). This little-known plant has quite the story to ...

Hispid Starbur: What You Need to Know About This Spreading Ground Cover

If you’ve ever noticed a low-growing plant with small yellow flowers and prickly, bristly leaves taking over disturbed areas in your garden, you might have encountered hispid starbur (Acanthospermum hispidum). This little-known plant has quite the story to tell, and understanding its nature can help you make informed decisions about your landscape.

Getting to Know Hispid Starbur

Hispid starbur is an annual or perennial forb that belongs to the sunflower family. The word hispid refers to its distinctly hairy, rough texture that makes the plant feel bristly to the touch. Unlike woody plants, this herbaceous species lacks significant woody tissue and keeps its growing points at or below ground level, helping it survive through various seasons.

Where You’ll Find It Growing

Here’s where things get interesting with hispid starbur’s native status. While it’s considered native to Puerto Rico and the U.S. Virgin Islands, it’s actually a non-native species that has established itself across much of the continental United States and even parts of Canada. You can find it growing in Alabama, Florida, Georgia, Hawaii, New Jersey, New York, Oregon, South Carolina, Virginia, and Ontario.

This wide distribution tells us that hispid starbur is quite the adaptable traveler, successfully establishing itself far from its original Caribbean home.

What Does It Look Like?

Hispid starbur presents itself as a low-growing, spreading plant that forms patches in open areas. Its small yellow composite flowers might remind you of tiny sunflowers, though they’re much more modest in size. The leaves have that characteristic rough, bristly texture that gives the plant its hispid name. Don’t expect this to be a showstopper in terms of ornamental value – it’s more of a practical ground cover than a garden beauty.

Growing Conditions and Care

If you’re in USDA hardiness zones 8-11, hispid starbur will likely thrive in your area. This plant is remarkably unfussy about its growing conditions:

  • Prefers full sun locations
  • Tolerates poor, disturbed soils
  • Handles drought conditions well once established
  • Spreads readily without much intervention

The reality is that hispid starbur typically doesn’t need your help to grow – it’s more likely to show up on its own in disturbed areas, vacant lots, or neglected parts of your property.

Should You Plant Hispid Starbur?

Here’s the honest truth: most gardeners won’t intentionally plant hispid starbur. While it’s not classified as invasive, its aggressive spreading habit and non-native status in most areas make it less than ideal for intentional landscaping. If you’re looking for ground cover or plants to naturalize disturbed areas, you’ll be better served by choosing native alternatives that provide similar benefits while supporting local ecosystems.

Better Native Alternatives

Instead of hispid starbur, consider these native options for your region:

  • Wild bergamot (Monarda species) for pollinator-friendly ground cover
  • Native asters for late-season color
  • Regional wildflower mixes that support local wildlife
  • Native sedges for tough, low-maintenance ground cover

The Bottom Line

Hispid starbur represents one of those plants that’s more likely to find you than the other way around. While it’s not necessarily harmful, choosing native plants for your landscape will better support local pollinators, birds, and other wildlife while creating a more regionally appropriate garden. If hispid starbur does appear in your landscape naturally, you can appreciate its resilience while making space for native species that will truly make your garden shine.

Remember, the best gardens work with nature rather than against it, and that usually means embracing the plants that evolved alongside your local ecosystem.

Hispid Starbur

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

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Acanthospermum Schrank - starbur

Species

Acanthospermum hispidum DC. - hispid starbur

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