| Hieracium scabrum | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Hieracium |
| Species: | H. scabrum |
| Binomial name | |
| Hieracium scabrum Michx. 1803 not Willd. ex Froel. 1838 nor Gaud. 1820 | |
Hieracium scabrum, the rough hawkweed,[1] is a North American plant species in the tribe Cichorieae within the family Asteraceae. It is native to eastern and central Canada and the eastern and central United States from Nova Scotia west to Ontario, Minnesota, and Kansas south as far as Georgia and Oklahoma.[2]
Hieracium scabrum is an herb up to 60 cm (2.0 ft) tall with many hairs so that it feels rough to the touch. Leaves are mostly on the stem with only a few at the bottom. Leaves are up to 120 mm (4.7 in) long. One stalk can produce 5-50 flower heads in a conical or flat-topped array. Each head has 30-60 yellow ray flowers but no disc flowers.[3] Flowers bloom from July to September.[4] It grows in sandy soils, disturbed and wooded sites.[3]
References
- ↑ USDA, NRCS (n.d.). "Hieracium scabrum". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 23 July 2015.
- ↑ Biota of North America Program 2014 county distribution map
- 1 2 Flora of North America, Hieracium scabrum Michaux, 1803.
- ↑ "Lady Bird Johnson Wildflower Center - The University of Texas at Austin". www.wildflower.org. Retrieved 2022-02-22.
External links
Media related to Hieracium scabrum at Wikimedia Commons
Data related to Hieracium scabrum at Wikispecies- Photo of herbarium specimen at Missouri Botanical Garden, collected in Missouri in 1996
- Photo by Gerrit Davidse, closeup of flower heads showing hairs on foliage