Flora of North America species comparison

erect to ascending, striate-angled, glabrous or minutely scurfy, not resinous.

erect, green, striate-angled, glabrous or slightly scurfy.

present at flowering (not in fascicles);

petioles to 7 mm;

blades obovate or elliptic to rhombic, 20–60 × 8–40 mm, leathery, bases cuneate to attenuate, margins serrate (teeth 1–3 per side distal to middles, relatively broad), apices acute, faces glabrous, abaxial black gland-dotted (distal reduced, entire), adaxial eglandular.

present at flowering; short-petiolate;

blades (1-nerved, lateral veins obscure) obovate to spatulate, 10–30 × 7–18 mm (somewhat fleshy), margins entire or occasionally with 1–2 short, broad teeth per side, bases tapering, apices broadly obtuse, submucronate or slightly retuse, faces glabrous, gland-dotted, sometimes resinous.

campanulate to obconic;

staminate 4–5 mm, pistillate 5–6 mm.

obconic;

staminate 3–4 mm, pistillate 5–7 mm.

15–25;

corollas 3–4 mm.

20–30;

corollas 4–5 mm.

20–30;

corollas 4–5 mm.

20–30;

corollas 3–4 mm.

ovate to lanceolate, 1–4 mm, margins scarious, medians green, apices rounded or obtuse (sometimes purplish).

ovate to lanceolate, 1–4 mm, margins scarious-erose, medians green, apices obtuse to acuminate.

(1–4, sessile or subsessile) in axillary glomerules scattered along branches.

(in terminal clusters) in (leafy) corymbiform or paniculiform arrays.

1.5–2 mm, 8–10-nerved, glabrous;

pappi 8–9 mm.

1–2 mm, 8–10-nerved, glabrous;

pappi 3–5 mm (scarcely elongating in fruit).