Flora of North America species comparison

decumbent, ascending, or erect, glabrous.

often reddish, branched or simple, rooting adventitiously from proximal nodes.

cauline, alternate or subopposite, petiolate;

ocrea persistent, chartaceous;

blade spatulate-ovate to orbiculate, margins entire.

ocrea brownish, broadly funnelform, 1–1.5 mm, margins oblique;

petiole (0.1–)2–10 mm;

blade 1–6.5 × 1–5 mm, base tapering to truncate, apex obtuse to acute, glabrous.

terminal, paniclelike or cymelike, not pedunculate.

absent or present.

0.1–1.5 mm or absent.

bisexual, 3–10 per ocreate fascicle, bases not stipelike;

perianth nonaccrescent, greenish, often tinged white or pink distally, narrowly campanulate, glabrous or occasionally with scattered glands;

tepals 3 [4], distinct, sepaloid, monomorphic;

stamens (1–)3[–5];

filaments distinct, free, glabrous;

anthers white or yellowish, ovate to elliptic;

styles 2(–3), erect, distinct;

stigmas capitate.

perianth 0.9–1.8 mm;

tepals ovate to elliptic, margins entire, apex obtuse;

stamens ca. 1/2 as long as tepals.

included or barely exserted, light brown or brown to black, unwinged, unevenly 2-gonous, rarely 3-gonous, glabrous.

1–1.8 × 0.7–0.8 mm, dull.

embryo curved.

= 7.

= 14 (Mongolia, Norway), 28.