Flora of North America species comparison

ascending to erect, branched, without noticeable ribs, glabrous, glandular-punctate.

ascending to erect or, rarely, prostrate, usually branched, sometimes simple, unarmed.

ocrea brown, cylindric, (4–)9–18 mm, chartaceous, base inflated, margins truncate, ciliate with bristles 2–11 mm, surface glabrous or strigose, glandular-punctate;

petiole 0.1–1 cm, glandular-punctate, leaves sometimes sessile;

blade without dark triangular or lunate blotch adaxially, lanceolate to lanceolate-ovate or subrhombic, 4–10(–15) × 0.6–2.4 cm, base tapered or cuneate, margins antrorsely strigose, apex acute to acuminate, faces glabrous or scabrous along midveins, glandular-punctate.

ocrea chartaceous, rarely foliaceous distally, margins eciliate or ciliate;

petiole not winged, not auriculate;

blade sometimes with dark triangular or lunate blotch adaxially, lanceolate to narrowly elliptic, base tapered, acute, rounded, or cordate, margins entire.

mostly terminal, sometimes also axillary, erect, interrupted, 50–200 × 4–8 mm;

peduncle 30–60 mm, glabrous, glandular-punctate;

ocreolae mostly not overlapping, margins mostly ciliate with bristles to 2 mm.

terminal or terminal and axillary, spikelike, uninterrupted or interrupted.

ascending, 1–4 mm.

2–6 per ocreate fascicle, homostylous;

perianth greenish proximally, white distally, rarely tinged pink, glandular-punctate with punctae ± uniformly distributed, scarcely accrescent;

tepals 5, connate ca. 1/3 their length, obovate, 3–3.5 mm, veins prominent or not, not anchor-shaped, margins entire, apex obtuse to rounded;

stamens 6–8, included;

anthers pink or red, elliptic to ovate;

styles 2–3, connate proximally.

homostylous or heterostylous, articulation swollen or not;

perianth campanulate;

tepals 4–5, connate 1/4–2/3 their length;

stamens 5–8;

styles deciduous, 2–3, included or exserted (exserted syles and stamens in heterostylous species), spreading.

included or apex exserted, brownish black, usually 3-gonous, rarely biconvex, (1.8–)2.2–3.2 × 1.5–2.2 mm, shiny, smooth.

= 44.