Flora of North America species comparison

mostly single, usually erect, sometimes branched distally, solid (sometimes hollow in older, robust plants), sometimes glaucous, proximally densely bristly-hairy, hairs reflexed, stiff, simple, sometimes also coarse, 2–3-rayed, stellate, 1–1.6(–2.5) mm, pustulate, sparser distally, with minute, stellate hairs in inflorescence.

single, scattered, erect, usually purple tinted proximally, hollow especially towards base, pithy distally, 10–14 mm diam. just distal to base, often glaucous, proximally densely retrorsely bristly-hairy and stellate-hairy, hairs pustulate, 1.5–2.5 mm, distally sometimes glabrous.

mostly basal, some cauline;

stipules usually early-deciduous, linear-lanceolate, 3–7 × 1 mm;

proximal petioles 15–18 cm, 3–4 times as long as blade, distal usually to 1/2 times to as long as blade;

blades: basal rounded, usually palmately 7-lobed, shallowly incised, 4–8 × 4–8 cm, lobes 1.5–2 cm wide, margins crenate-dentate, 3–7-toothed, apices obtuse;

distal 3–10, palmately 5-lobed, deeply incised, 2–6 × 2–6 cm, lobes narrow, linear, 2–3.5 × 2–4 mm, margins entire or 1–5-toothed, surfaces: abaxial stellate-hairy, hairs 6-rayed, 1.5 mm, adaxial hairy, hairs simple, 1.5 mm, distalmost glabrate adaxially and sometimes simple-hairy.

mostly cauline, basal usually absent;

stipules deciduous, with pink band on stem at base, narrowly lanceolate, (3.5–)5(–8) × 0.7(–1.5) mm;

petioles of proximal leaves 6–8 cm, those of midstem leaves 10–14 cm, 2 times to as long as blade, apex curved with swollen portion or pulvinus 5–6 × 1.8 mm;

blades of proximalmost cauline leaves rounded, shallowly, palmately 4- or 5-lobed, 0.5–0.7 × 0.5–0.7 cm, lobe margins irregularly, sparsely dentate, apices rounded, mid-cauline blades 5–7-lobed, 6.5–12 × 10–13 cm, wider than long, gradually reduced distally, lobes straplike, divided 3/4 to base, lobes 5.5 × 1.5–1.8 cm, margins coarsely dentate, surfaces sparsely, minutely hispid and stellate-puberulent, distal leaves deeply 5-lobed, otherwise similar in shape, leaves immediately below inflorescence greatly reduced, irregularly 2- or 3-lobed.

erect, open, calyces not conspicuously overlapping except sometimes in bud, unbranched or branched, (5–)10–12(–23)-flowered, elongate, sometimes 1-sided, 10–40 cm;

bracts lanceolate, usually undivided, 3–4 mm, shorter than pedicels and calyx.

erect, spiciform, open, calyces usually not overlapping, usually branched, branches 14–18 cm, each branch 10–20 flowered, not 1-sided, elongate, 5–20 cm;

bracts 1, usually undivided, narrowly lanceolate, often 2-fid, 2.5 mm, equaling or slightly longer than pedicel, much shorter than calyx.

(3–)5–10(–15) mm;

involucellar bractlets absent.

2–3(–5) mm;

involucellar bractlets absent.

usually bisexual, infrequently unisexual and pistillate, plants gynodioecious;

calyx (7–)9–10 mm, to 12–14 mm in fruit, densely stellate-puberulent;

petals pale pinkish lavender, often pale-veined especially when dry, pistillate 10–20 mm, bisexual 20–25(–31) mm;

staminal column 7–8(–10) mm, sparsely puberulent;

anthers white;

stigmas (6)7(8).

bisexual or unisexual and pistillate, plants gynodioecious;

calyx 5–6 mm, to 8 mm in fruit, uniformly, densely stellate-puberulent, surface obscured;

petals pale pink, pale-veined, pistillate 7–9 mm, bisexual (10–)14–20(–25) mm;

staminal column 6–8 mm, stellate-puberulent;

anthers white to cream or pale yellow;

stigmas (6)7 or 8.

2.5 mm.

1.5 mm.

6–8 mm diam.;

mericarps (6)7(8), 3–4 mm, minutely glandularpuberulent, glabrescent, margins sometimes sharpedged, roughened, strongly reticulate-veined, sides and back deeply pitted, honeycomblike, median line on back but not furrowed, mucro 1 mm.

6–7 mm diam.;

mericarps (6)7 or 8, sides 3 mm, thick, back and margins thick, rounded, reticulate-veined, pitted, back with prominent groove, top sparsely glandular-stellate-puberulent, mucro 1 mm.

= 60.