Xylorhiza confertifolia, the Henrieville woody-aster, is a rare species of flowering plant in the family Asteraceae, known only from Garfield and Kane counties in southern Utah. The common name for the species refers to the Town of Henrieville, in Garfield County. It grows on barren alkaline slopes and in open pinyon-juniper woodlands at elevations of 1,400–2,300 m (4,600–7,500 ft).[3]
| Xylorhiza confertifolia | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Xylorhiza |
| Species: | X. confertifolia
|
| Binomial name | |
| Xylorhiza confertifolia (Cronquist) T.J.Watson
| |
| Synonyms[1][2] | |
| |
Xylorhiza confertifolia is a subshrub up to 20 cm (7.9 in) tall. Leaves are very narrow and linear, generally less than 2.5 mm (0.098 in) across. Flower heads are borne singly, with white ray and yellow disc flowers.[4][5][6]
References
edit- ^ Tropicos
- ^ The Plant List
- ^ Flora of North America v 20 p 408.
- ^ Cronquist, Arthur John. 1963. Two new varieties in Machaeranthera. Leaflets of Western Botany 10(1): 11–13..
- ^ Watson, Thomas J. Brittonia 29(2): 207. 1977.
- ^ Cronquist, Arthur John. Intermountain Flora 5: 274. 1994.