Flora of North America species comparison

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Wyethia ×cusickii

Wyethia angustifolia

hybrid mule's ears, mule-ears

California compass-plant, narrow leaf mule ears, narrow-leaf mule's ears, narrowleaf wyethia
Habit Plants 15–60 cm.
Basal leaves

blades (dark green) nearly deltate or broadly lanceolate to lance-linear, 15–35 cm, margins entire or irregularly serrate (sometimes undulate), sometimes strigillose, not ciliate, faces hirsute, hirtellous, scabrous, or strigillose (sometimes vernicose);

cauline leaves smaller distally (petiolate or sessile).
Involucres

± hemispheric, (15–)20–30+ mm diam.
Ray florets

(8–)12–14;

laminae 15–25 mm.
Phyllaries

26–40, subequal, ± herbaceous, margins ciliate, faces (abaxial) hispid, hispidulous, or strigillose;

outer 15–25 mm (not or little surpassing discs).
Heads

usually borne singly, sometimes 2–3+ in corymbiform arrays.
Cypselae

7–8 mm, ± strigillose.
2n

= 38.

Wyethia ×cusickii

Wyethia angustifolia
Phenology Flowering May–Jul.
Habitat Meadows, grassy slopes, chaparral, wet to dry openings in pine and pine-oak forests
Elevation 20–2100 m (100–6900 ft)
Distribution
from USDA
[BONAP county map]
from FNA
CA; OR; WA
[WildflowerSearch map]
[BONAP county map]
Discussion

Wyethia angustifolia ranges from southwestern Washington, in and west of the Columbia Gorge, through Oregon into California west of the Cascade-Sierra axis.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 21, p. 103.
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. arizonica, W. glabra, W. helenioides, W. helianthoides, W. longicaulis, W. mollis
Synonyms Alarconia angustifolia, W. angustifolia var. foliosa
Name authority (de Candolle) Nuttall: Trans. Amer. Philos. Soc., n. s. 7: 352. (1840)
Web links 
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Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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