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Missouri ironweed (Vernonia missurica) blooms July–September. It is scattered in the eastern half of Missouri and is uncommon farther west. Identify it by its distinctively shaped flowerheads and flowerhead bracts.
Ironweeds may be found in nearly any habitat in Missouri, with different species more common in different habitats. Most Missouri species prefer lowland, or moist habitats, though our most common species, western ironweed (V. baldwinii), typically occurs in drier, upland sites.
Striking purple, feathered flowers about 1 inch across bloom in groups at the top of the plant throughout August. This species was sixth most attractive to natural enemies in the late season, with three times as many natural enemies as the grass control.
Vernonia missurica, commonly known as “Missouri Ironweed”. It grows 3-5′ tall in full sun and moist to medium-moist soil and is hardy to zones 6-8. Possibly the prettiest or showiest of the Ironweeds, it’s native range primarily is throughout the Mississippi River valley and adjacent areas.
Missouri Ironweed can be distinguished from other Vernonia spp. primarily by the number of disk florets in the compound flowers, and the profuse hairiness of the stems and lower sides of the leaves. It is probably the most common species of ironweed in Illinois.
Vernonia fasciculata is commonly called smooth ironweed because its leaves, stems and flower heads are distinctively glabrous. It is native from Ohio to North Dakota south to Missouri, Oklahoma and Texas.
Vernonia missurica, the Missouri ironweed, [3] is a species of magenta-flowered perennial plant from family Asteraceae native to the central and east central United States.
Western, or Baldwin's ironweed is one of five species of ironweeds in Missouri. Ironweeds are tough, grayish-green, branching perennials known for their fluffy-looking clusters of reddish-purple florets. Western ironweed is the most common and widespread of Missouri's ironweeds.
Vernonia missurica (Missouri Ironweed): A resilient native, this ironweed reaches around 3 to 5 feet in height (90-150 cm) with vivid purple to magenta flowers, thriving in medium to wet soils. Each of these varieties has its own unique characteristics, but all are known for their ability to provide late-season color and support for pollinators.
Aug 15, 2023 · MISSOURI IRONWEED (V. missurica) Missouri ironweed is similar in size and look to tall ironweed, growing to about 7 feet tall max. But the underside of its leaves are excessively pubescent with white hairs, more so than other ironweeds.
