Source: Wikipedia
| Hieracium scabrum | |
|---|---|
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Hieracium |
| Species: | H. scabrum
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| Binomial name | |
| Hieracium scabrum Michx. 1803 not Willd. ex Froel. 1838 nor Gaud. 1820
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Hieracium scabrum, commonly known as rough hawkweed[2] or sticky hawkweed,[3] is a North American plant species in the tribe Cichorieae within the family Asteraceae. It is native to the eastern and central United States and Canada.
Description
[edit]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.[4] Flowers bloom from July to September.[5]
Distribution and habitat
[edit]Hieracium scabrum is native to the eastern and central United States and Canada from Nova Scotia west to Ontario, Minnesota, and Kansas south as far as Georgia and Oklahoma.[6] It grows in sandy soils[4] and inhabits in a variety of habitats including anthropogenic habitats, meadows, fields and woodlands.[7]
Ecology
[edit]Little is known about floral-faunal relationships involving Hieracium scabrum, but the flower heads are likely pollinated by long-tongued bees and other insects. It is suspected that Hieracium scabrum serves as a host plant for Schinia bina. The seeds and leaves of Hieracium scabrum are known to be eaten by wild turkey and ruffed grouse. The foliage is occasionally browsed by eastern cottontails and white-tailed deer, but is not a preferred food source due to its hairiness and it containing an unpalatable bitter white latex.[8]
Ethnobotany
[edit]Hieracium scabrum was used by the Rappahannock as an antidiarrheal drug.[7]
References
[edit]- ^ NatureServe (2 February 2024). "Hieracium scabrum". NatureServe Network Biodiversity Location Data accessed through NatureServe Explorer. Arlington, Virginia: NatureServe. Retrieved 7 February 2024.
- ^ USDA, NRCS (n.d.). "Hieracium scabrum". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 23 July 2015.
- ^ "Hieracium scabrum (Sticky Hawkweed)". www.minnesotawildflowers.info. Retrieved 16 August 2024.
- ^ a b 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.
- ^ Biota of North America Program 2014 county distribution map
- ^ a b "Hieracium scabrum - rough hawkweed". Go Botany Native Plant Trust. Retrieved 16 August 2024.
- ^ "Rough Hawkweed". www.illinoiswildflowers.info. Retrieved 16 August 2024.
External links
[edit]
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
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