Vernonia noveboracensis

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New York ironweed

Taxonomy

  • Kingdom: Plantae
  • Clade: Angiosperms
  • Order: Asterales
  • Family: Asteraceae
  • Genus: Vernonia
  • Species: V. noveboracensis

Common Names by Region

  • Eastern United States: New York Ironweed
  • Midwestern United States: Tall Ironweed
  • Southern United States: Bitterweed

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Description

  • Plant Type: Perennial herb
  • Height: 3 to 7 feet (0.9 to 2.1 meters)
  • Stem: Erect, robust, and unbranched
  • Leaves: Alternate, lanceolate to ovate, serrated margins, dark green
  • Flowers: Dense clusters of small, purple, tubular flowers; blooms from late summer to early fall
  • Fruit: Small, dry, and seed-like (cypsela), with tufts of hair for wind dispersal

Known Range

  • Geographical Distribution: Primarily found in the eastern United States, from New York south to Florida and west to Illinois and Texas
  • Habitats: Moist meadows, stream banks, floodplains, and open woodlands

Care Requirements

  • Sunlight: Prefers full sun to partial shade
  • Soil: Thrives in moist, well-drained soils; tolerates a range of soil types including clay, loam, and sandy soils
  • Watering: Requires consistent moisture; benefits from regular watering, especially during dry periods
  • Maintenance: Low maintenance; may require staking in windy areas due to height
  • Propagation: Primarily by seed; can also be divided in early spring or fall
  • Pests/Diseases: Generally resistant to pests and diseases, but may occasionally be affected by powdery mildew and rust

Additional Notes

  • New York Ironweed is often used in native plant gardens and naturalized areas due to its striking flowers and ability to attract butterflies and other pollinators.
  • The plant’s bitter leaves are generally unpalatable to deer and other herbivores.
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