Flora of North America species comparison

erect, green, simple or branched, ± wiry, 15–60 cm, usually papillose-scabridulous.

erect, green, simple or with few branches, not wiry, 1.5–3.5 cm, papillose-scabridulous.

uniformly distributed, articulated to ocreae, basal leaves often caducous, distal leaves abruptly reduced to bracts, articulated to ocreae;

ocrea 5–12 mm, glabrous or papillose-scabridulous, proximal part cylindric, distal part lacerate or disintegrating into fibers;

petiole 0.1–2 mm;

blade 1-veined, not pleated, linear to narrowly oblong or lanceolate, 15–70 × 2–8 mm, margins revolute, papillose-denticulate, apex acute or mucronate.

uniformly distributed, articulated to ocreae, basal leaves persistent, distal leaves abruptly reduced to bracts;

ocrea 2–3.5 mm, papillose-scabridulous, proximal part funnelform, distal part hyaline, lacerate;

petiole absent;

blade 1-veined, not pleated, linear-subulate, 6–14 × 1 mm, coriaceous, margins revolute, touching along midrib, apex acute, mucronate, papillose.

axillary and terminal, spikelike, elongate;

cymes spaced along branches, 2–5-flowered.

axillary and terminal, spikelike, dense;

cymes overlapping, starting almost from stem base, 2–4-flowered.

exserted from ocreae, reflexed, 0.5–1 mm.

enclosed in ocreae, erect to spreading, 0.4–1 mm.

open or semi-open;

perianth (3.5–)4–5 mm;

tube 9–17% of perianth length;

tepals overlapping, uniformly white to pink, petaloid, oblong to oblong-obovate, cucullate, navicular in distal 1/4, apex rounded;

midveins unbranched or with short lateral branches;

stamens 8.

open;

perianth 2–2.5 mm;

tube 20–25% of perianth length;

tepals overlapping, uniformly white, petaloid, oblong to widely obovate, cucullate, navicular in distal 1/4, apex rounded;

midveins branched;

stamens 8.

enclosed in perianth, black, elliptic, 3.5–5 mm, faces subequal, shiny or dull, smooth or striate-tubercled.

enclosed in perianth, black, elliptic, 1.5–2 mm, faces subequal, shiny, smooth.