Global InformationHieracium radyrense information
| Hieracium radyrense | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Hieracium |
| Species: | H. radyrense
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| Binomial name | |
| Hieracium radyrense (Pugsley) P.D. Sell & C. West
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Hieracium radyrense, the Radyr hawkweed, is a very rare endemic species restricted to Radyr in south Wales, UK. First identified in 1907 it was described as a variety in 1948 and a species in 1955.[1] and belongs to Hieracium section Vulgata. It has rarely been seen and surveys between 1998 and 2004 indicate that only one population of about 25 plants survives.
A polycarpic perennial, Radyr hawkweed flowers from late May to early June or July. Specimens found at Danybryn in Radyr grew on a grassy bank and lawn under the partial shade of trees and shrubs.[1]
- ^ a b Hutchinson, G; Rich, TCG (2005). "Conservation of Britain's biodiversity: Hieracium radyrense (Asteraceae), Radyr Hawkweed" (PDF). Watsonia. 25: 403–407. Archived from the original (PDF) on 26 July 2011.