Flora of North America species comparison

single or clustered, erect, base often decumbent-ascending, solid (proximally hollow on older stems), proximally densely bristly-hirsute, hairs simple or forked, 0.5–1 mm, sometimes mixed with minute, stellate hairs, sometimes glabrous and glaucous in age, hairs usually more appressed, simple, stellate, or sparse distally.

single, erect, usually branched distally with erect branches, solid, not glaucous, proximally glabrate, distally usually softly, densely bristly-hirsute, rarely glabrescent.

mostly cauline;

stipules lanceolate, 4–11 × 1–1.5 mm;

petioles of proximal leaves 15–20 cm, 2–3 times as long as blades, distal reduced to 0.5–10 cm, 1/2 times to as long as blades;

blade 10–15 × 10–15 cm, smaller distally, surfaces scabrid-hairy, hairs dense, simple or stellate, stiff, stellate hairs mostly on adaxial surfaces, proximal blades orbiculate, shallowly to deeply palmately 7–9-lobed, 5–15 × 5–15 cm, base cordate, margins coarsely crenate-serrate, lobes apically 2–5-toothed;

distal cauline leaves variable, mid blades usually palmately divided nearly to base into 5–7 cuneate lobes, 15 × 15 cm, lobes deeply cut to laciniately dissected, distal blades divided into (3–)5–7 linear, marginally subentire segments, surfaces glabrescent or with few hairs on abaxial surface veins, ciliate.

cauline;

stipules inconspicuous or deciduous, purplish, lanceolate to subulate, 3–12 × 1–2 mm;

petiole 2–7 cm, longest on proximal leaves and gradually reduced distally, proximalmost to 3 times as long as blade, reduced distally to 1/2 times or as long as blade;

blades: proximalmost early-deciduous, orbiculate, unlobed, 1–2.5 × 1–2.5 cm, base cordate, margins crenate, surfaces ± bristly, distal deeply palmately 5–7(–9)-lobed to base, 3–8 × 3–8 cm, lobes linear, margins entire, apex acute, surfaces: abaxially younger blades hirsute, older glabrous except on veins.

erect, open, spiciform, calyces not conspicuously overlapping except sometimes in bud, often branched from distal leaves, 15+-flowered, elongate, not 1-sided, 10–35 cm, proximal flowers spaced several cm apart, not leafy-bracted;

bracts linear, distal undivided or 2-fid, proximal separate to base, 4–10 mm, usually equaling or longer than pedicels.

erect, spiciform, dense, calyces usually overlapping, ca. 20–30-flowered, proximalmost 1 or 2 flowers in leaf axils, not elongate, not 1-sided, 2–5 cm, to 20 cm in fruit;

bracts inconspicuous or deciduous, often purplish, linear, 4–8 × to 2 mm, slightly longer than pedicels, usually 2-fid, sometimes undivided.

3–6(–20) mm;

involucellar bractlets absent.

2–3 mm;

involucellar bractlets absent.

bisexual or unisexual and pistillate, plants gynodioecious;

calyx 5–9 mm, pistillate 5–7 mm, bisexual 6–9 mm, 8–10 mm in fruit, uniformly, densely stellate-hairy or with coarser, longer, stellate hairs to 2 mm;

petals usually not overlapping, nearly white to pale pink or pale lavender, pistillate 9–12 mm, bisexual 13–25 mm;

staminal column 5–7 mm, hairy;

anthers white to pale pink;

stigmas (6 or)7 or 8.

bisexual, less often unisexual and pistillate and plants gynodioecious;

calyx 8–10 mm, to 10–13 mm in fruit, prominently tawny-hirsute and densely stellate-canescent;

petals pale pink to dark rose-pink or rose-purple, often with paler veins, 13–25 mm;

stamens: filaments connate to apex, funnel-like, with rim to which unstalked anthers attach;

staminal column 6–7 mm, hairy;

anthers white;

stigmas 5 or 6.

2.5 mm.

1.5–2 mm.

7–8 mm diam.;

mericarps (6 or)7 or 8, 3.5 mm, roughened, sides prominently reticulate-rugose and pitted, back less so and glandular-puberulent, mucro 0.5–1 mm.

8–9 mm diam.;

mericarps 5 or 6, 3–4 mm, back and sides reticulate-veined and pitted, wrinkled, ± stellate-puberulent, mucro 1 mm.

= 60.