Flora of North America species comparison

erect when young, decumbent or prostrate later, moderately branched especially from base, not wiry, 50–70 cm.

erect, color unknown, simple to profusely branched from near base, not wiry, 2–5 cm, glabrous.

ocreae 5–12 mm, proximal part cylindric, distal part soon disintegrating into brown fibers;

petiole 0.3–1.5 mm;

blade light yellowish green, elliptic to obovate, 8–35 × 3–15 mm, margins flat, apex rounded;

stem leaves 1–2.1(–3) times longer than branch leaves;

distal leaves overtopping flowers.

persistence and crowded at brance tips, not articulated to ocreae;

ocrea 4–6 mm, glabrous, proximal part cylindric, distal part silvery, disintegrating nearly to base into straight fibers;

petiole absent;

blade 3-veined, without pleats, linear, 5–35 × 1–1.5 mm, margins revolute, smooth, apex acuminate.

axillary, cymes in axils of most leaves and toward tips of stems and branchs, 1–3(–5)-flowered.

axillary;

cymes insertion unknown, 1-flowered.

enclosed in ocreae, 1.3–1.8(–2) mm.

absent.

closed;

perianth 2.6–4 mm;

tube 40–55% of perianth length;

tepals incurved, yellow-green with yellow to green, rarely pinkish, margins, sepaloid, ± keeled, narrowly oblong, cucullate;

midveins unbranched, moderately to heavily thickened, tepals appearing keeled;

stamens 5–8.

closed;

perianth 2–3 mm;

tube 6–18 % of perianth length, tepals imbrication unknown, white with whitish or pink margins, petaloid, oblong, apex acute, mucronate;

midveins unbranched;

stamens 8;

anthers orange-pink.

enclosed in perianth, yellow-green to tan, ovate, 3-gonous, 2.4–3.5 mm, faces unequal, apex not beaked, edges concave or nearly straight, dull, uniformly tubercled; late-season achenes common, 3–5 mm.

enclosed in perianth, olive brown, ovate, 2–2.3 mm, faces subequal, shiny, smooth.

= 40, 60.