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rattlesnake flower

Scientific Name: Brazoria truncata var. truncata

Family: Lamiaceae

Category: Dicot

Growth: Forb/herb

Duration: Annual

Other Names:

       

Rattlesnake Master (Eryngium yuccifolium)

Considerations for Pets

  • The plant has spine-edged foliage, which may pose a minor hazard.

Considerations for Children

  • The plant has spine-edged foliage, which may pose a minor hazard.

Quirky Facts

  • The name "Rattlesnake Master" comes from the old belief that the plant could keep venomous snakes away or treat rattlesnake bites.
  • John, a prairie writer, described it as having "leaves like yucca, a head like a thistle, and second cousin to the carrot."

Taxonomy and Nomenclature

  • Scientific Name: Eryngium yuccifolium Michx.
  • Common Names: Rattlesnake Master, Button Eryngo, Button Snakeroot, Yuccaleaf Eryngo, Beargrass, Bear's Smooth
  • Family: Apiaceae (Carrot family)
  • Plant Symbol: ERYU

Distribution and Habitat

  • Native to North America.
  • Specifically mentioned as native to the tallgrass prairie and occurs in rocky woods, prairies, and glades of Mississippi.
  • Grows well on wet on dry mesic prairie soil.
  • Found in the wild in the southeastern United States.

Morphological Characteristics and Growth Habits

  • Herbaceous perennial plant.
  • Typically grows to a height of 2-6 feet (or 2-5' as stated elsewhere). Some sources mention up to 4'.
  • Has a stout, unbranched central stem.
  • Forms a low clump of grassy, yucca-like leaves.
  • Slightly spiny leaves arranged in a rosette.
  • Unique golf ball-like flower heads that are rather sculptural.
  • Small white flowers are in several dense, spherical, "bristly" heads 0.5-2 cm (0.25-0.75 in.) across. The flower heads are made up of small 5-petaled white flowers.
  • Flower heads can be white to blue.

Interactions with Other Organisms

  • Flower attracts beneficial insects.

Additional Information

  • Prefers a dry, sunny site.
  • Adaptable and easy to grow.
  • Available at Toadshade Wildflower Farm (mail order nursery in Frenchtown, NJ).
  • Elsberry Plant Materials Center (USDA NRCS) contributed to information about the plant.
  • Native American Seed sells Rattlesnake Master seeds.
  • Dave's Garden is a community that shares tips and ideas for gardens.