Hieracium traillii

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

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

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. "Hieracium greenii". Natural Resources Conservation Service PLANTS Database. USDA. 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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