Hieracium traillii
1913 illustration[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Hieracium
Species:
H. traillii
Binomial name
Hieracium traillii
Greene 1900
Synonyms[2][3][4]

Hieracium traillii is a species of hawkweed known by the common name Maryland hawkweed.[5]

Hieracium traillii grows in the eastern United States, primarily in the central Appalachian Mountains of Pennsylvania, Maryland, Virginia, and West Virginia, with some populations farther west in Ohio and Kentucky.[6]

Hieracium traillii is a small hawkweed forming a basal rosette of densely hairy gray-green leaves, each up to 8 centimeters (3.2 inches) long and some with toothed edges. It bolts a thin, hairy stem which reaches 60 centimeters (2 feet) tall. The stem bears an inflorescence of several flower heads containing yellow ray flowers but no disc flowers. The fruit is a ribbed achene about half a centimeter (0.2 inches) long with a light brown pappus.[7]

References

  1. ↑ 1913 illustration from USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 3: 332, as Hieracium greenii
  2. ↑ The Plant List, Hieracium traillii Greene
  3. ↑ Greene, Edward Lee. 1900. Pittonia 4(23): 226
  4. ↑ Porter, Thomas Conrad & Britton, Nathaniel Lord. 1893. Bulletin of the Torrey Botanical Club 20(3): 120 Hieracium greenii
  5. ↑ USDA, NRCS (n.d.). "Hieracium greenii". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 22 July 2015.
  6. ↑ Biota of North America Program 2014 county distribution map, Hieracium greenii
  7. ↑ Flora of North America, Hieracium traillii Greene, 1900.


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