Flora of North America species comparison

1, branched proximally and distally, usually tomentose, sometimes glabrous.

usually 1, erect or ± prostrate, usually ± branched proximally (often forming mats, usually leafy throughout), glabrous.

proximal obovate to narrowly spatulate, sometimes pinnately lobed (lobes 1–2+ pairs, subequal, apices obtuse), sometimes ± fleshy, margins usually obtuse-lobed, sometimes entire;

distal not notably reduced (similar to others).

proximal obovate to spatulate, usually pinnately lobed (lobes 1–3+ pairs, nearly equal, apices obtuse), usually fleshy, ultimate margins entire, faces glabrous;

distal not reduced (similar to others).

10–14 × 4–8+ mm.

± campanulate, 6–8 × 2–6+ mm.

not bristly.

glabrous.

47–99;

corollas medium yellow, 11–20 mm;

outer ligules exserted 5–10 mm.

18–76;

corollas medium yellow, 4–8 mm;

outer ligules exserted 1–4 mm.

16–30 in 2–3 series, (red-tinged) lanceolate or oblong to linear, hyaline margins 0.05–0.1 mm wide, faces glabrous.

13–22+ in 2–3 series, (often red-tinged) oblong to lanceolate, hyaline margins 0.05–0.2 mm wide, faces glabrous.

of 5–16+, ovate to lanceolate bractlets, hyaline margins 0.05–0.2 mm.

of 8–13+, lance-deltate to lanceolate bractlets (sometimes intergrading with phyllaries), hyaline margins 0.05–0.2 mm wide.

usually cylindro-fusiform, sometimes weakly prismatic, 1.5–2.2 mm, ribs extending to apices, ± equal;

persistent pappi 0.

± prismatic, 1.2–1.5 mm, ribs extending to apices, 5 more prominent than others;

persistent pappi 0.

70–100% 3-porate.

70–100% 3-porate.

= 14.

= 14.