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hybrid mule's ears, mule-ears

gray mule's ears, whitehead mule-ears, whitehead wyethia

Habit Plants (15–)25–40(–60) cm.
Basal leaves

blades (whitish to grayish) oblong-ovate to lance-elliptic, 18–38 cm, margins usually entire, sometimes serrulate or dentate (often undulate), faces densely tomentose to tomentulose (usually gland-dotted as well), glabrescent;

cauline leaves (3–6) similar, smaller.


hemispheric or broader, 35–60+ mm diam.

Ray florets


laminae 20–35(–50) mm.


16–24, unequal, herbaceous, margins not ciliolate, faces tomentose;

outer (30–)40–80+ mm (foliaceous, much surpassing the discs).


usually borne singly (–2+).


12–15 mm, distally strigillose.


= 38.

Wyethia ×cusickii

Wyethia helenioides

Phenology Flowering (Feb–)Mar–May.
Habitat Grassy slopes, openings in woodlands
Elevation 10 –1600(–2000) m (0 –5200(–6600) ft)
from USDA
[BONAP county map]
from FNA
[WildflowerSearch map]
[BONAP county map]

Wyethia helenioides grows in the Sierra Nevada foothills and west of the Central Valley, avoiding the fog belt.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 21, p. 101.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Ecliptinae > Wyethia
Sibling taxa
W. amplexicaulis, W. angustifolia, W. arizonica, W. glabra, W. helenioides, W. helianthoides, W. longicaulis, W. mollis
W. amplexicaulis, W. angustifolia, W. arizonica, W. glabra, W. helianthoides, W. longicaulis, W. mollis
Synonyms Alarconia helenioides
Name authority (de Candolle) Nuttall: Trans. Amer. Philos. Soc., n. s. 7: 353. (1840)
Web links 
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