Flora of North America species comparison

erect, green or gray-green, 1.5–4(–10) dm, white- to yellow-canescent.

ascending, usually dark red-purple, 4–10 dm, glabrous or stellate-canescent.

blades gray to green, ovate, unlobed or weakly 3–5-lobed, 1–5.5 cm, not rugose, base cuneate to cordate, margins entire or crenate to serrate, surfaces stellate-pubescent.

blades green, gray, or gray-green, ovate to cordate-ovate, 3- or 5-lobed, main lobe unlobed in 3-lobed leaves, cleft in 5-lobed leaves, lobes spatulate, 1.2–4 cm, not rugose, base truncate to cordate, margins entire, surfaces stellate-pubescent.

paniculate, crowded, flowers clustered with distinct internodes between clusters, tip not leafy;

involucellar bractlets usually green to tan, sometimes red-purple.

paniculate, open, 2–few-flowered per node, tip not leafy;

involucellar bractlets green.

sepals 6–9 mm, tip not forming distinct beak in bud;

petals red-orange, 8–14 mm;

anthers yellow.

sepals 5–13 mm;

petals red-orange, 15–20(–25) mm;

anthers purple or yellow.

1 per mericarp, gray or black, ± pubescent.

2 per mericarp, black, pubescent.

ellipsoid;

mericarps 12, 3.5–5.5 × 1.5–3 mm, chartaceous, nonreticulate dehiscent part 60–70% of height, with or without apical cusp, indehiscent part not wider than dehiscent part.

hemispheric;

mericarps 10–15, 4.5–5.5 × 3 mm, chartaceous, nonreticulate dehiscent part 40–50% of height, tip acutish, indehiscent part wider than dehiscent part, sides prominently reticulate.

= 10, 20.