Flora of North America species comparison

greenish, hirtellous to puberulent.

ascending, green, soon becoming tan, glabrous or puberulent, sometimes resin-dotted, often resinous.

blades (ascending to spreading, lowermost sometimes deflexed) bright green (especially adaxially), 3- or 5-nerved, linear to lanceolate, 15–45 × 2–6 mm, usually not twisted or with a single twist, margins flat to ± undulate, eciliate or ciliolate, apices abruptly acute, abaxial faces usually hirsute to hirtellous, rarely glabrous, adaxial usually glabrous.

ascending, spreading, or deflexed;

sessile;

blades with evident midnerves plus sometimes 1–2 pairs of smaller, collateral nerves, linear to lanceolate, 10–75 × 0.5–10 mm, flat or sulcate, often twisted, margins often undulate, sometimes ciliate, apices acute to apiculate, faces glabrous or puberulent.

turbinate, 5–6.5 mm.

cylindric to obconic or campanulate, 4–7 × 1.5–2.5 mm.

5;

corollas 5.5–6 mm, lobes 1–1.5 mm.

(3–)4–5(–14);

corollas 3.5–6.5 mm, lobes 0.7–1.7 mm;

style branches 2.2–3.2 mm (exserted beyond spreading corolla lobes), appendages 0.8–1.5 mm (length shorter than stigmatic portion).

14–18 in 3–4 series, in spirals or vertical ranks, green subapical patches often lacking, midnerves evident distally or throughout, convex or ± keeled, oblong, unequal, margins scarious, eciliate or ciliolate, apices often rounded, apiculate, faces puberulent.

12–24 in 3–5 series, in spirals or weak vertical ranks, mostly tan, green to brown subapical patch often present, midnerves usually evident (at least distally), linear-oblong, lanceolate to elliptic or obovate to spatulate, 1–5 × 0.5–1.2 mm, unequal, chartaceous, margins scarious, eciliate or ciliolate to erose-ciliolate, flat or convex, sometimes weakly keeled, apices acute to obtuse or rounded, sometimes apiculate, flat, faces glabrous or puberulent.

in small, compact, cymiform arrays.

in dense, rounded cymiform arrays (to 7 cm wide), not overtopped by distal leaves.

tan to reddish brown, turbinate, 2.5–4.2 mm, ± 5-angled, moderately to densely hairy;

pappi tan, 3.5–6 mm.

= 18, 36.