Flora of North America species comparison

opposite (proximal) or alternate (distal);

petioles 1–8 mm;

blades ovate to deltate-ovate or lanceolate (distal), 2–10 × 1.3–7 cm, margins serrate or serrulate, faces strigose.

opposite or alternate;

sessile or subsessile;

blades ovate (and shallowly to deeply lobed, lobes 3–9, ± linear) or linear, 1.5–10.8 × 1–9 cm, ultimate margins entire (revolute), faces: abaxial loosely to densely strigillose (canescent) and gland-dotted, adaxial densely strigose to glabrate.

1–15 cm.

2–5 cm.

11–15 × 7–15 mm.

5–12 × 7–9 mm.

6–8;

tubes 1.5–2 mm, laminae 9–19 mm.

13–18;

tubes 0.9–1.1 mm, laminae 7–12 mm.

40+;

corollas 5.5–6.6 mm (staminal filaments glabrous).

100+;

corollas 3.3–4.2 mm.

abruptly narrowed to acuminate or spatulate (phyllary bases broad, indurate, apices herbaceous).

borne singly or 2–9 in ± corymbiform arrays.

usually borne singly.

5–6.5 mm, ± strigose;

pappi of 2 lacerate, aristate scales 5–5.5 mm plus 2–4 lacerate scales 0.5–1.3 mm.

2–3 mm, glabrous;

pappi 0.

apices gradually narrowed.

8–11 mm, apices acuminate, shortly cuspidate.

(oblong-rectangular) 4–5 mm, apices abruptly acuminate.

= 34.

= 34, 68.