Flora of North America species comparison

erect, green-brown, simple or branched from base, not wiry, 2–5(–8) cm, glabrous.

prostrate to ascending, branching from base, not wiry, 15–40 cm.

± uniformly distributed, dense, not articulated to ocreae, basal leaves ± persistent, distal leaves gradually reduced to bracts;

ocrea 2–4(–5) mm, glabrous, proximal part cylindric, distal part deeply lacerate, disintegrating into white, curled fibers;

petiole absent;

blade 3-veined, without pleats, linear-lanceolate, subulate, 5–13(–20) × 0.4–1 mm, margins revolute, smooth, apex spine-tipped.

ocrea 4–6 mm, proximal part funnelform, distal part silvery hyaline, soon disintegrating, leaving almost no fibrous remains;

petiole 2–5 mm;

blade often reddish tinged, elliptic to obovate or oblanceolate; 20–35 × 9–16 mm, margins flat, apex rounded;

stem leaves (1.3–)2–2.6(–3.5) times as long as branch leaves;

distal leaves overtopping flowers in distal part of inflorescence.

axillary;

cymes in most axils, 1-flowered.

axillary;

cymes in most leaf axils, 1–4-flowered.

absent.

mostly exserted from ocreae, 2–4 mm.

closed;

perianth 1.5–2(–2.5) mm;

tube 6–15% of perianth length;

tepals overlapping, usually reddish with white margins, petaloid, oblong, navicular, apex acute;

midveins unbranched;

stamens 8.

semi-open;

perianth 3–3.5(–4) mm;

tube 18–25% of perianth length;

tepals overlapping, green, margins white or pink, petaloid, not keeled, broadly rounded, cucullate;

midveins unbranched;

stamens 8.

slightly exserted from perianth at maturity, dark brown, ovate, 1.2–1.6(–2) mm, faces subequal, shiny, smooth.

exserted from perianth, brown, ovate, 3-gonous, 2.8–3.4(–4) mm, faces subequal or evidently unequal, apex not beaked, edges straight, shiny, minutely roughened; late-season achenes uncommon, 4.5–5 mm.

= 60.