Flora of North America species comparison

petioles winged, wings merging with blades;

blades rhombic or widely elliptic, 4–10 × 2–8 cm.

petioles winged, wings merging with blades;

blades rhombic or widely elliptic, 4–10 × 2–8 cm.

30–100 cm.

30–80 cm.

18–30 mm.

15–25 mm.

20–35;

corollas light yellow, laminae 30–50 mm (1.5–2 times disc diams.).

20–35;

corollas deep yellow, laminae 12–30 mm (1–1.2 times disc diams.).

in 4–6 series, lanceolate to ovate, apices acuminate.

in 4–6 series, lanceolate to ovate, apices acuminate.

± 10 × 6.5 mm, glabrous or puberulent;

pappi of 2 awns ± 1 mm (plus minute scales).

9–13 × 4–5 mm, hirsute;

pappi usually of 2 awns 1–2 mm (plus minute scales or teeth), sometimes 0.

= 36.