Flora of North America species comparison

spreading to erect, sometimes zigzagged, purplish, simple or branched, wiry, (5–)10–35 cm, papillose-scabridulous.

prostrate, much-branched from base, not wiry, 10–40 cm, papillose-scabridulous.

evenly distributed or crowded at branch tips, articulated to ocreae, basal leaves persistent, distal leaves gradually reduced to bracts;

ocrea 3–4 mm, papillose-scabridulous, proximal part funnelform, distal part finely lacerate;

petiole 0.1–2 mm;

blade 1-veined, not pleated, linear to narrowly oblong-elliptic, 8–30 × 1–4(–7) mm, margins narrowly revolute, never touching along midrib, smooth, apex acute, mucronate, ± glaucous adaxially.

ocrea 1-veined, 2.5–3 mm, proximal part cylindric, distal part laciniate;

petiole 0–1 mm;

blade bluish green, narrowly elliptic or oblanceolate, 5–16 × 1–4 mm, margins flat, apex obtuse or acute, papillose-scabridulous;

stem leaves 1–1.5(–2) times longer than adjacent branch leaves, distal leaves overtopping flowers.

axillary and terminal, spikelike, dense;

cymes mostly congested toward tips of branches, 2–3-flowered.

axillary;

cymes uniformly distributed, 3–6-flowered.

enclosed in ocreae, erect to spreading, 2–3 mm.

exserted from ocreae, 3–5 mm.

semi-open or closed;

perianth 1.8–2.4 mm;

tube 25–33% of perianth length;

tepals overlapping, greenish, white, or pink with pink margins, petaloid, oblong, cucullate, navicular in distal 1/4, apex rounded;

midveins unbranched;

stamens 8.

closed;

perianth 1–1.5 mm;

tube 12–27% of perianth length;

tepals overlapping, green with white or pink margins, petaloid, not keeled, elliptic, cucullate;

midveins unbranched, thickened;

stamens 5.

enclosed in perianth, black, elliptic to ovate, 1.8–2.3 mm, faces subequal, shiny, smooth.

enclosed in perianth, black-brown, broadly ovate, 2–3-gonous, 1.5–2 mm, faces subequal, apex not beaked, edges concave, shiny, smooth; late-season achenes common, 2–4 mm.

= 20.