OregonFlora species comparison

alternate (upper leaves may be opposite), obovate to spatulate, 10–30 × 5–15 mm;

margins toothed at least in upper 25%; entire below;

tips rounded;

surfaces glabrous, sessile.

lower leaves alternate, elliptic to obovate, 15–30 × 5–15 mm;

margins entire;

tips obtuse;

surfaces glabrous, petiolate; upper and floral leaves opposite or whorled; round to rhombic-ovate, 0.5–1.5 cm, sessile or with short petioles.

involucres cone- to bell-shaped, 2–3 mm;

glands not horned.

involucres bell-shaped, 1–1.5 mm;

glands 2-horned.

styles divided nearly to base.

round, 2–2.5 mm.

spherical, 1.5–3 mm.

ovoid to ellipsoid, 1–2 mm, with reticulate pitting.

oblong, 1–1.5 mm, with rows of large pits.