Flora of North America species comparison

clustered, erect, base decumbent-ascending, solid or ± hollow in age, usually ± glaucous distally, glabrous or sparsely hirtellous, hairs short, appressed, simple.

single or in dense patches, erect, solid, hairy, hairs simple, spreading, bristly.

basal and cauline;

stipules sometimes deciduous, lanceolate to ovate, (4–)7–9(–14) × (1.2–)3–4 mm;

petioles of proximal leaves 18–37 cm, 3–5 times as long as blades, distal 5–20 cm, to 1/2–1 times as long as blades;

blades: basal reniform to rounded, unlobed and marginally deeply crenate or very shallowly palmately 5–7-lobed, 6–20 × 6–20 cm, base cordate, apex rounded;

cauline deeply 5–9-lobed, lobes linear-elliptic to oblong-elliptic, margins usually entire, sometimes toothed, surfaces finely, sparsely hairy, hairs mostly simple.

cauline, evenly arrayed on stem;

stipules asymmetric-ovate and auriculate, 10–20 × 10–20 mm, width exceeding stem diam.;

petioles of proximal leaves 7–10 cm, gradually reduced distally to 2 cm, 1–1 1/2 times blade length proximally to 1/2 blade length distally;

blade ovate to elliptic, unlobed, usually (4–)7–8 × (2.5–)4–5 cm, reduced distally, base cordate, margins crenate-serrate, apex acute to rounded, surfaces glabrous abaxially, sparsely hirsute adaxially.

erect, spiciform, proximally open, distally dense, otherwise calyces not conspicuously overlapping except sometimes in bud, branched, 20+-flowered, proximalmost flowers spaced usually to 1 cm apart, not leafy-bracted, elongate, not 1-sided, 10–20 cm;

bracts single, purple, mm, hairy;

anthers white;

stigmas (6 or)7 or 8.

erect, capitate, ± dense, calyces overlapping, unbranched, 2–10-flowered, not elongate, not 1-sided, 3–5 cm;

proximalmost bracts involucrelike, similar to stipules in size and shape, narrowed to linear distally, usually divided to base, 10–20 mm, longer than pedicels, equaling or slightly shorter than calyx.

1–2 mm;

involucellar bractlets 3, 8–12 mm, equaling or longer than calyx.

bisexual;

calyx 8 mm, sparsely to densely bristly, sometimes also stellate-hairy;

petals pink, usually pale-veined, 15 mm;

staminal column 4–6 mm, hairy;

anthers white;

stigmas 7 or 8.

1.5 mm.

1.9 mm.

4–5 mm diam.;

mericarps (6 or)7 or 8, 2 mm, roughened, sparsely glandular-puberulent apically, sides finely reticulate to faintly rugose, sometimes also on back, to nearly smooth, not pitted, mucro 0.5–1 mm.

4–5 mm diam.;

mericarps 7 or 8, 2 mm, glabrous, smooth, back with medial line, mucro absent.

= 20.