Vernonia baldwinii

Vernonia baldwinii, the western ironweed or Baldwin's ironweed, is a perennial herb native to central North America.[1]

Vernonia baldwinii
Vernonia baldwinii inflorescence
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Vernonia
Species:
V. baldwinii
Binomial name
Vernonia baldwinii
Torr.

Description

Vernonia baldwinii is a perennial herb with rhizomes. Its stems are densely tomentose, branched, and range up to 1.2 m (3 ft 11 in) in height. Its leaves are cauline and alternate, and are about 15 cm (5.9 in) in length and 4.5 cm (1.8 in) in width.[2] It has purplish, discoid inflorescences on short, tomentose peduncles.[3]

It grows in dry soil in prairies, pastures, open grounds, and woods, ranging from Iowa to Missouri, Nebraska, Kansas, and Texas.[3][4]

Taxonomy

The genus Vernonia is named for the English botanist William Vernon, and the species baldwinii is named for William Baldwin, the American botanist and physician who collected the plant.[5]

The common name "western ironweed" is derived from the range of the plant, the western United States, and derived from the toughness of the stem and roots of the plant.[5]

References
  1. "Vernonia baldwinii". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 9 September 2018.
  2. Robert H. Mohlenbrock (2017). Flowering Plants: Asteraceae. The Illustrated Flora of Illinois. 3. SIU Press. p. 89. ISBN 9780809336067.
  3. United States Agricultural Research Service, Clyde Franklin Ree (1970). Common Weeds of the United States - Issue 366 of Agriculture handbook (illustrated, reprint, revised ed.). Courier Corporation. p. 442. ISBN 9780486205045.CS1 maint: uses authors parameter (link)
  4. Nathaniel Lord Britton, Addison Brown (1913). An Illustrated Flora of the Northern United States: Canada and the British Possessions from Newfoundland to the Parallel of the Southern Boundary of Virginia, and from the Atlantic Ocean Westward to the 102d Meridian. 3 (2 ed.). C. Scribner's Sons. p. 353.
  5. Amanda Neill, ed. (2005). A Dictionary of Common Wildflowers of Texas & the Southern Great Plains (illustrated ed.). TCU Press. p. 160. ISBN 9780875653099.


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