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Coville's mule-ears

Agnorhiza invenusta

Also called Rayless Mule's Ears

Coville's mule-ears
Photo: Ryan Donnelly, CC BY 4.0

Coville's mule-ears (Agnorhiza invenusta) is a perennial wildflower in the daisy family, native only to the Sierra Nevada foothills of California, and it is a wild species rarely grown in gardens. It grows from a thick taproot and is best suited to dry, sunny native-plant or xeriscape settings.

Family
Asteraceae (Daisy family)
Grows as
Perennial
Light
Full sun
Water
Water sparingly once established; it tolerates long dry summers.
Soil
Well-drained, gritty or rocky soil.
Temperature
Hardy in its native foothill climate; protect from hard frost in colder regions.
How easy
Moderate
Native range
California

About

Agnorhiza invenusta (syn. Wyethia invenusta) is a species of flowering plant known by the common names Coville's mule's ears and rayless mule's ears. It is found only in California, where it grows in the Sierra Nevada foothills as in Fresno, Tulare, and Kern Counties.

Agnorhiza invenusta is a perennial herb growing from a thick taproot and caudex unit. The hairy, glandular stem grows up to a meter tall. The leaves have triangular or oval blades, up to 15 to 20 centimeters (5.9 to 7.9 in) long. The inflorescence is made up of one or more flower heads. The head has lance-shaped phyllaries which may be more than 3 centimeters (1.2 in) long.

Other Agnorhiza plants

Bolander's mule-ears · Hall's mule-ears · Southern mule-ears · El Dorado mule-ears · Mule-ears

Text excerpted from the Wikipedia article Agnorhiza invenusta by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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