OregonFlora species comparison

alternate (upper and floral leaves may be opposite or whorled), densely crowded on stem, obovate to obovate-oblong, 10–45 × 5–16 mm;

margins entire to serrulate at least in upper 25%;

tips mucronate;

surfaces glabrous, glaucous;

lower leaves alternate, sometimes appearing whorled, linear, 10–30 × 1–3 mm;

margins entire;

tips obtuse to acuminate;

surfaces glabrous, sessile; floral leaves opposite or whorled, broadly ovate, 0.4–1 cm;

margins entire to slightly crenate, sessile.

involucres cone- to bell-shaped, 1.5–3 mm;

glands shortly 2-horned.

involucres bell-shaped, 1–3 mm;

glands 2-horned.

round to oblong, 5–7mm.

oblong, 2.5–3 mm.

round to oblong, 3–4 mm; smooth or wrinkled.

ellipsoid, 1.5–2 mm; smooth.

sessile.

=20, 36, 42.