Wyethia arizonica

Arizona mule's ears
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Wyethia
Species:	W. angustifolia
Binomial name
	Wyethia arizonica; A. Gray

Wyethia arizonica (Arizona mule's ears) is a plant species native to Arizona, Colorado, New Mexico and Utah. It grows in meadows in coniferous forests at elevations of 600–3,000 m (2,000–9,800 ft).[1]

Wyethia arizonica is a perennial herb with a large taproot, the shoot up to 100 cm (39 in) tall. Leaves are elliptic to lanceolate, up to 30 cm (12 in) long. Flower heads are 1-4 per plant, with yellow flowers.[2][3][4]

References

Flora of North America v 21 p 103.
Gray, Asa. Notes on Compositae and characters of certain genera and species, etc. Proceedings of the American Academy of Arts and Sciences 8: 631-661. 1873.
Cronquist, A.J. 1994. Asterales. 5: 1–496. In A.J. Cronquist, A. H. Holmgren, N. H. Holmgren, J. L. Reveal & P. K. Holmgren (eds.) Intermountain Flora. Hafner Pub. Co., New York.
Weber, W. A. 1946. A taxonomic and cytological study of the genus Wyethia, family Compositae, with notes on the related genus Balsamorhiza. American Midland Naturalist 35: 400–452.

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[1] Flora of North America v 21 p 103.

[2] Gray, Asa. Notes on Compositae and characters of certain genera and species, etc. Proceedings of the American Academy of Arts and Sciences 8: 631-661. 1873.

[3] Cronquist, A.J. 1994. Asterales. 5: 1–496. In A.J. Cronquist, A. H. Holmgren, N. H. Holmgren, J. L. Reveal & P. K. Holmgren (eds.) Intermountain Flora. Hafner Pub. Co., New York.

[4] Weber, W. A. 1946. A taxonomic and cytological study of the genus Wyethia, family Compositae, with notes on the related genus Balsamorhiza. American Midland Naturalist 35: 400–452.