Flora of North America species comparison

erect, slender, rounded, smooth, glabrous or stipitate-glandular proximal to heads.

erect, simple, slender, wandlike, striate, villous or glabrate, glandular or eglandular.

often withering and sparse by flowering;

sessile;

blades (1-nerved) filiform to linear-oblanceolate, 10–30 × 1–3 mm (slightly fleshy), bases narrowed, margins entire (revolute), apices acute (mucronate), faces glabrous, gland-dotted.

present at flowering;

sessile;

blades linear to oblong or oblanceolate, 8–55 × 1–13 mm, bases cuneate, margins sharply serrate (teeth fine, sharp, bristly), apices obtuse, faces densely villous or adaxial sometimes glabrate or glabrous.

funnelform;

staminate 3–5 mm, pistillate 3–5 mm.

campanulate;

staminate 4–6 mm, pistillate 6–8.5 mm.

ca. 25;

corollas 2.5 mm.

20–30;

corollas 3.5–5 mm.

15–22;

corollas 4 mm.

19–26;

corollas 4–7 mm.

lanceolate (not keeled), 1–4 mm, margins ciliate, chartaceous, apices acute to acuminate (abaxial faces scurfy-glandular).

lanceolate, 2–6 mm, margins scarious, medians green (villous), apices acute to acuminate, ciliate, sometimes glandular.

borne singly or in (pedunculate clusters) in loose paniculiform or racemiform arrays.

(50–100+) in compact paniculiform or corymbiform arrays.

2–3 mm, 10-nerved, glabrous or ciliate along nerves;

pappi 7–10 mm.

2.5–3.6 mm, 5-nerved, villous, viscid;

pappi 7–8.5 mm.

= 18.