Flora of North America species comparison

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

erect to ascending, slender, striate, glabrous, resinous.

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;

sessile;

blades (1-nerved) 20–60 × 1–2(–5) mm, ± succulent, bases narrowly attenuate, margins mostly entire, apices acute, faces glabrous, not gland-dotted.

campanulate to obconic;

staminate 4–5 mm, pistillate 5–6 mm.

campanulate;

staminate 3–4 mm, pistillate 3.5–5 mm.

15–25;

corollas 3–4 mm.

15–20;

corollas ca. 3 mm.

20–30;

corollas 4–5 mm.

15–20;

corollas 2.5 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, medians green, sometimes purplish, apices green to purplish, obtuse to acute.

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

(in groups of 3–5 near branch tips) in broad paniculiform arrays (of 100+).

1.5–2 mm, 8–10-nerved, glabrous;

pappi 8–9 mm.

1–2 mm, 10-nerved, glabrous;

pappi 6–8 mm.