North America Native Plant

Louisiana Broomrape

Botanical name: Orobanche ludoviciana ludoviciana

USDA symbol: ORLUL2

Life cycle: annual

Habit: forb

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

Synonyms: Aphyllon arenosum Suksd. (APAR3)  âš˜  Conopholis ludoviciana (Nutt.) Alph. Wood (COLU3)  âš˜  Myzorrhiza ludoviciana (Nutt.) Rydb. (MYLU)  âš˜  Orobanche ludoviciana Nutt. var. arenosa (Suksd.) Cronquist (ORLUA)  âš˜  Orobanche ludoviciana Nutt. var. genuina G. Beck (ORLUG)  âš˜  Orobanche multiflora Nutt. var. arenosa (Suksd.) Munz (ORMUA)   

Louisiana Broomrape: The Mysterious Parasitic Wildflower You Probably Shouldn’t Try to Grow Meet Louisiana broomrape (Orobanche ludoviciana ludoviciana), one of nature’s most unusual characters. This isn’t your typical garden flower – in fact, it’s not really a flower you can garden with at all. But before you click away, stick ...

Louisiana Broomrape: The Mysterious Parasitic Wildflower You Probably Shouldn’t Try to Grow

Meet Louisiana broomrape (Orobanche ludoviciana ludoviciana), one of nature’s most unusual characters. This isn’t your typical garden flower – in fact, it’s not really a flower you can garden with at all. But before you click away, stick around to learn about this fascinating parasitic plant that’s secretly living all around North America.

What Exactly Is Louisiana Broomrape?

Louisiana broomrape is an annual forb that’s completely given up on the whole photosynthesis thing. Instead of making its own food like most plants, it’s chosen the life of a botanical vampire, latching onto other plants and stealing their nutrients. You won’t see any green leaves on this guy – just yellowish to purplish stems topped with small, tubular flowers that emerge from the ground like tiny alien antenna.

Despite its common name, this plant isn’t limited to Louisiana at all. It’s actually native throughout much of North America and goes by several scientific aliases, including Aphyllon arenosum and Conopholis ludoviciana, among others.

Where Does Louisiana Broomrape Call Home?

This widespread native can be found across an impressive range of states and provinces. From Alberta down to Texas, and from British Columbia to Virginia, Louisiana broomrape pops up in:

  • Canadian provinces: Alberta, British Columbia, Manitoba, Saskatchewan
  • Western states: Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, North Dakota, Oregon, South Dakota, Utah, Washington, Wyoming
  • Central states: Illinois, Indiana, Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, Ohio, Oklahoma, South Dakota, Wisconsin
  • Eastern states: Kentucky, Tennessee, Virginia, West Virginia
  • Southern states: Texas

Why You Probably Don’t Want This in Your Garden

Here’s the thing about Louisiana broomrape – it’s not exactly garden-friendly material. As a parasitic plant, it can’t survive without latching onto host plants, which means you can’t just plant seeds and expect a lovely display. Plus, since it’s essentially stealing nutrients from other plants, it’s not going to win any awards for playing well with others in your flower bed.

The plant typically grows in natural prairies, grasslands, and other open areas where it can find its preferred hosts among the wild plant community. While it’s certainly interesting from a botanical perspective, it’s more of a cool thing you might spot on a nature walk rather than something for your landscape design.

What Makes This Plant Special?

Louisiana broomrape might not be garden material, but it plays an important role in natural ecosystems. Its small flowers can provide nectar for various insects, though it’s not considered a major pollinator plant. The real fascination lies in its unique lifestyle and the way it’s adapted to survive without photosynthesis.

For plant enthusiasts, spotting Louisiana broomrape in the wild can be quite exciting. Its ghostly appearance – lacking the green chlorophyll of typical plants – makes it stand out against the usual prairie backdrop.

Growing Conditions and Care (Or Lack Thereof)

If you’re still thinking about trying to grow Louisiana broomrape, here’s the reality check: you really can’t cultivate it in any traditional sense. The plant requires specific host relationships that develop naturally in wild settings. It grows across various USDA hardiness zones (roughly 3-9) depending on location, but only where suitable host plants and soil conditions already exist.

Instead of trying to grow this unusual plant, consider appreciating it in its natural habitat. If you’re interested in supporting native plant communities that might naturally include Louisiana broomrape, focus on establishing native prairie or grassland areas with appropriate host plants.

The Bottom Line

Louisiana broomrape is a fascinating example of how diverse and creative nature can be, but it’s definitely not destined for your perennial border. This native parasitic plant is best appreciated in the wild, where it can maintain its complex relationships with host plants and contribute to the intricate web of prairie ecosystems. If you encounter it on your nature adventures, take a moment to marvel at this botanical oddball – just don’t expect to take it home with you!

Louisiana Broomrape

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

Orobanchaceae Vent. - Broom-rape family

Genus

Orobanche L. - broomrape

Species

Orobanche ludoviciana Nutt. - Louisiana broomrape

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