Flora of North America species comparison

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

simple, erect or procumbent, rigid (woody proximally), herbaceous and leafy distally (dying back annually), striate-angled, glabrous, non-resinous.

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 (1-nerved) linear to narrowly lanceolate, 10–40 × 1–4 mm, bases narrowed, margins minutely undulate, apices acute, faces glabrous, gland-dotted (distal leaves reduced, scalelike).

funnelform;

staminate 3–5 mm, pistillate 3–5 mm.

campanulate;

staminate 4–7 mm, pistillate 7–9 mm.

ca. 25;

corollas 2.5 mm.

20–30;

corollas 3.5–4 mm.

15–22;

corollas 4 mm.

15–20;

corollas 4–5 mm.

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

lanceolate, 1–7 mm, margins scarious, erose-ciliate, medians green (midribs dark, keeled, dilated), apices acute to acuminate (erose-ciliate, abaxial faces glabrous, minutely papillose-gland-dotted).

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

(on short peduncles) in loose corymbiform arrays.

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

pappi 7–10 mm.

3–5 mm, prominently 6–8-nerved, glabrous;

pappi 11–14 mm.

= 18.