Flora of North America species comparison

fibrous.

trailing, dichotomously branched, to 1 m.

prostrate to ascending.

sessile or petiolate;

petiole, ± clasping;

blade ovate to spatulate, flat, 2–20 cm, margins undulate.

basal and cauline, alternate or opposite, sessile or petiolate;

stipules absent;

blade reddish with age, flat or terete, margins often undulate.

terminal or axillary, cymes;

proximal bracts opposite, leaflike;

distal bracts alternate, reduced; flowering profusely.

terminal or axillary, flowers solitary or in cymes;

bracts absent or 1–2, sessile or pedicellate.

7–10 mm diam.;

hypanthium aging red, round;

calyx lobes 5, unequal;

petals 20–40, connate into tube, white, aging pink;

stamens 30.

showy, 4–10[–20] mm diam., tubular;

calyx lobes (4–) 5, 2 often leaflike;

petals (including petaloid staminodia) 20–40[–150], distinct or connate into short tube, free, white, pink, or yellowish, linear;

nectary glands 5;

stamens 30[–120];

pistil (4–)5-carpellate;

ovary half-inferior, (4–)5-loculed, convex;

placentation axile;

stigmas (4–)5, erect, filiform.

capsules, persistent, valves (4–)5, with expanding interior keels when moistened, forming capsule lids when dried, dehiscence loculicidal.

coarsely papillate.

200, rough with minute tubercles.

100–200, black or dark [light] reddish brown [ochre or whitish], compressed [globose], often with 1 straight edge, 1 mm, smooth to rough with minute tubercles;

arils absent.

= 18.