Wyethia x cusickii
hybrid mule's ears
erect, 32–45 cm, sparsely to very sparsely villous-hirsute.
lanceolate to elliptic to ovate, 21–26 × 6.5–11.5 cm, generally < 3 × as long as wide, bases sometimes decurrent;
margins entire or with small teeth;
surfaces glabrous but generally sparsely hirsute on midribs and margins;
petioles 2–13 cm. Cauline leaves lanceolate to oblong, 6–18 × 2–6 cm;
petioles 0–4 cm.
terminal heads 1, occasionally with 1–4 reduced; axillary heads;
peduncles up to 1.5 cm.
terminal 30–45 × 13–15 mm; axillary ~12 × 10 mm.
~15, light yellow;
rays 35–45 × 8–10 mm.
linear to lanceolate, 17–28 × 3–6 mm;
surfaces ciliate.
7–11 × 1–2 mm, strigillose apically;
pappus scales lanceolate; crowns 0.3–1 mm.
Wyethia x cusickii
Open, grassy areas. Flowering May–Jun. 800–1700 m. BW, Lava. ID, WA. Native.
Wyethia × cusickii is the hybrid between W. amplexicaulis and W. helianthoides and can be expected wherever their ranges overlap. It ranges from something that looks very much like W. amplexicaulis, but with ciliate phyllaries, to something that looks much like W. helianthoides but is mostly glabrous.
Abigail (Abby) Moore
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
