Mules Ear
Mules ear is a common name for a group of plants in the sunflower family (Asteraceae) which were previously all placed in the genus ''Wyethia'', but are now classified in the following genera: *''Agnorhiza'' *''Scabrethia'' *''Wyethia ''Wyethia'' is a genus of North American flowering plants in the family Asteraceae. First published by Thomas Nuttall in J. Acad. Nat. Sci. Philadelphia vol.7 on page 39 in 1834. These plants are commonly referred to as mule's ears. They are sho ...

Asteraceae
The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae were first described in the year 1740. The number of species in Asteraceae is rivaled only by the Orchidaceae, and which is the larger family is unclear as the quantity of extant species in each family is unknown. Most species of Asteraceae are annual, biennial, or perennial herbaceous plants, but there are also shrubs, vines, and trees. The family has a widespread distribution, from subpolar to tropical regions in a wide variety of habitats. Most occur in hot desert and cold or hot semi-desert climates, and they are found on every continent but Antarctica. The primary common characteristic is the existence of sometimes hundreds of tiny individual florets which are held together by protective involucres in flower heads, or more technicall ...
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Agnorhiza
''Agnorhiza'' is a small genus of flowering plants in the family Asteraceae described as a genus in 1998. Its species had previously been considered members of either ''Wyethia'' or ''Balsamorhiza''. The plants are native to California, with the range of one species ''(A. ovata)'' extending into northern Mexico. They are perennial herbs with sunflower-like flower heads A pseudanthium (Greek for "false flower"; ) is an inflorescence that resembles a flower. The word is sometimes used for other structures that are neither a true flower nor a true inflorescence. Examples of pseudanthia include flower heads, compos ... 1 to 4 centimeters wide. ; Species * '' Agnorhiza bolanderi'' - Bolander's mule's ears * '' Agnorhiza elata'' - Hall's mule's ears * '' Agnorhiza invenusta'' - Coville's mule's ears * '' Agnorhiza ovata'' - southern mule's ears * '' Agnorhiza reticulata'' - El Dorado mule's ears References External links USDA Plants Profile for ''Agnorhiza'' Heliantheae Flora ...
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Scabrethia
''Scabrethia '' is a monotypic genus of North American flowering plants in the family Asteraceae. There is only one recognized species, ''Scabrethia scabra'', the badlands mule-ears, which is native to the western United States (Montana, Wyoming, Colorado, Utah, Arizona, New Mexico). ;Subspecies # ''Scabrethia scabra'' subsp. ''scabra '' - (Montana, Wyoming, Colorado, Utah, Arizona # ''Scabrethia scabra'' subsp. ''attenuata'' (W.A.Weber) W.A.Weber - Utah, Arizona, New Mexico # ''Scabrethia scabra'' subsp. ''canescens'' (W.A.Weber) W.A.Weber - Colorado, Utah, Arizona, New Mexico The genus was circumscribed by William Alfred Weber in Phytologia vol.85 (1) on page 20 in 1998 (published in 1999). The genus name of ''Scabrethia'' is in honour of Nathaniel Jarvis Wyeth Nathaniel Jarvis Wyeth (January 29, 1802 – August 31, 1856) was an American inventor and businessman in Boston, Massachusetts who contributed greatly to its ice industry. Due to his inventions, Boston could ...
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