Hieracium traillii
| Hieracium traillii | |
|---|---|
| |
| 1913 illustration[1] | |
Scientific 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
[edit]- ^ 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
- ^ The Plant List, Hieracium traillii Greene
- ^ Greene, Edward Lee. 1900. Pittonia 4(23): 226
- ^ Porter, Thomas Conrad & Britton, Nathaniel Lord. 1893. Bulletin of the Torrey Botanical Club 20(3): 120 Hieracium greenii
- ^ NRCS. "Hieracium greenii". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 22 July 2015.
- ^ Biota of North America Program 2014 county distribution map, Hieracium greenii
- ^ Flora of North America, Hieracium traillii Greene, 1900.
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