Flora of North America species comparison

erect to ascending, slender, striate-angled, glabrous, scarcely resinous.

erect, green, slender and wandlike, striate-angled, glabrate proximally, hispidulous distally (near heads).

usually present at flowering;

sessile;

blades (1-nerved) linear-oblanceolate to narrowly oblong, 20–40(–80) × 4–8 mm, bases cuneate, margins evenly serrate (teeth spinulose, apices acute, faces finely gland-dotted, not resinous).

present at flowering (reduced, sparse);

sessile;

blades (1-nerved) linear to linear-lanceolate, 5–17 × 1–2 mm (reduced distally to subulate bracts), margins entire, apices acute, faces glabrous (sometimes minutely papillose).

campanulate; staminate 3–6 mm, pistillate 3–6 mm.

funnelform or campanulate; staminate 3–5.2 mm, pistillate 4–6 mm.

30;

corollas 2.2–3 mm.

8–18;

corollas 2–2.8 mm.

20–30;

corollas 3 mm.

(8–)12–18(–29);

corollas 3.3–4.2 mm.

lanceolate, 1–5 mm, margins scarious, erose-ciliate, medians green, apices acute or obtuse (erose, abaxial faces glabrous).

lanceolate, 1–4 mm, margins scarious, medians green (hispid), apices acute to acuminate.

(10–50+) in terminal, compact, rounded paniculiform arrays.

(on racemiform lateral branches) in paniculiform arrays.

1.5–2.2 mm, 5-nerved, glabrous;

pappi 4–6 mm.

1.5–2.5 mm, 5-nerved, hispid;

pappi 4.5–7 mm.

= 18.