Flora of North America species comparison

flowering apices often ascending, branched, usually 0.2–0.5 m, often rooting at nodes.

procumbent, not viscid, sometimes with few simple hairs on herbage.

stipules 3–4 × 1.5–3 mm;

petiole length 1–2 times blade;

blade 1.5–4 × 1.5–4 cm.

stipules persistent, ovate;

blade orbiculate, usually palmately 5–7- ribbed, narrowly triangular;

corolla wide-campanulate, salmon-orange, often with darker center, drying brick red;

staminal column included;

ovary 16–22-carpellate;

ovules 1 per cell;

style 16–22-branched;

stigmas capitate.

usually shorter than subtending petioles, hairy;

involucellar bractlets lanceolate, 4–5 mm.

calyx 5–7 mm, hairy, hairs simple, 1–2 mm;

corolla erect, 6–8 mm;

staminal column yellowish;

anthers crowded at apex;

stigmas equaling number of locules.

schizocarps, erect, not inflated, flattened disc indented in center, not indurate, setose;

mericarps 16–22, 2-celled, dorsally setose, laterally glabrous, with 2 apical spurs/spines, chamber divided by endoglossum or partial septum, lower cell strongly rugose, indehiscent, upper cell smoother, dehiscent.

drying black, 5–6 mm, apical spines 1.5–3 mm.

1.5 mm.

1 per cell, rounded, with proximal notch, sparsely, minutely hairy.

= 9.

= 18.