Flora of North America species comparison

1–50+, decumbent to erect (sometimes brown or reddish brown, sometimes whitish distally, sometimes ± brittle), sparsely to densely hispido-strigose, sparsely to abundantly long-hispid, eglandular or sparsely to densely stipitate-glandular.

1–50, usually decumbent, sometimes ascending (proximal parts often buried in sand) simple, moderately to densely strigose, sparsely hispid, eglandular.

generally not crowded;

proximal cauline petiolate, blades oblanceolate, (90–)220–400(–600) × (2–)4–8(–13) mm, bases cuneate, margins flat, usually entire, rarely with 1–2 apical teeth, strigoso-ciliate, sparsely to abundantly long-hispido-strigose proximally, apices acute to obtuse, sometimes mucronate, faces sparsely to densely hispido-strigose, eglandular or sparsely to densely stipitate-glandular;

distal sessile, blades usually lanceolate or oblanceolate to oblong, rarely ovate or lanceolate-triangular, (4–)15–28(–42) × (1.5–)3.5–7(–12.5) mm, bases attenuate to convex-cuneate to rounded, margins usually flat, rarely remotely undulate, strigoso-ciliate, sparsely to abundantly long-hispido-strigose proximally, apices acute to obtuse, sometimes mucronate, faces sparsely to densely hispido-strigose, eglandular or sparsely to densely stipitate-glandular.

proximal cauline subpetiolate, blades oblanceolate, 4.8–12.5(–15) × 1.5–3 mm, bases cuneate, margins flat (often curling upon drying), entire, strigoso-ciliate, long-hispid proximally, apices acute, faces moderately to densely strigose, hispid hairs few;

distal sessile, narrowly to broadly oblanceolate, (3.5–)5–10 × 1.1–2.4(–3.2) mm, little reduced distally, faces moderately to densely hispido-strigose, eglandular.

(4–)15–41(–98) mm, sparsely to densely hispido-canescent, eglandular or sparsely to densely stipitate-glandular;

bracts 1–7+, usually linear-oblanceolate, rarely leaflike and linear-oblanceolate, usually greatly reduced, margins usually flat, rarely remotely undulate, strigoso-ciliate, sparsely to abundantly long-hispido-strigose proximally, apices acute, sometimes mucronate, faces sparsely to densely hispido-strigose, eglandular or sparsely to densely stipitate-glandular; rarely 1–2 leaflike, oblanceolate bracts subtending heads.

3–5 mm, densely strigose, hispid hairs few;

bracts leaflike, little reduced distally.

narrowly cylindric to campanulate, (5–)6–9.5(–13) mm.

cylindric to narrowly campanulate, 5–7 mm.

(5–)10–20(–38);

laminae (3.5–)6.5–11(–20) × 1–2(–3) mm.

7–11;

laminae 6–8.5 × 0.6–1.6 mm.

(10–)20–50(–85);

corollas barely ampliate, (4–)5–6(–8) mm, glabrous or glabrate (few, minute hairs), lobes 0.4–0.75(–1) mm, glabrous or glabrate (hairs 0.1–0.35 mm).

10–21;

corollas ± ampliate, 3.5–4.8 mm, throats glabrous, lobes (0.3–)0.5–1 mm, sparsely pilose (hairs 0.1–0.3 mm).

in 4–5 series, lanceolate to linear-lanceolate or triangular-lancelate, unequal (outer 1/5–1/3 length of inner), margins scarious, sometimes reddish purple distally, ciliate distally or apically, faces sparsely to densely strigose, eglandular or sparsely to moderately stipitate-glandular.

in 4–5 series, unequal (outer 1/5–1/4 length of inner), mid lanceolate, mid to distal margins anthocyanotic, moderately strigose, eglandular.

1–16(–42), in usually open, corymbiform, rarely paniculiform arrays.

borne singly.

monomorphic, obconic, compressed, 1.7–2.7(–3.4) mm, ribs 4–8(–10) (rarely brownish), faces sparsely to moderately strigose;

pappi off-white, outer of linear scales 0.25–1 mm, inner of 30–45 bristle (4–)5–6.5(–8.5) mm, longest weakly clavate (usually equaling or longer than corollas).

monocarpic, obconic, compressed, 1–2.5 mm, ribs 7–10 (often brownish), faces moderately strigose;

pappi off-white, outer of linear scales 0.25–0.5 mm, inner of 25–35 bristles 3.9–6.5 mm, longest weakly clavate.

= 18, 36.

= 18.