Flora of North America species comparison

1–3.

erect, simple, glabrous.

ocrea brown, cylindric, 9–25(–32) mm, margins oblique, glabrous;

petiole attached to sheath 10–35(–50) mm, usually wingless, rarely winged distally, (10–)30–70(–110) mm;

blade elliptic to oblong-lanceolate or oblong-oblanceolate, (3.5–)5–22 × 0.8–4.8 cm, base tapered to rounded, rarely abruptly truncate or cuneate, often asymmetric, margins entire, sometimes wavy, apex usually acute to acuminate, rarely obtuse, abaxial face glabrous or pubescent with whitish or brownish hairs, glaucous, adaxial face glabrous, not glaucous;

cauline leaves 2–6, petiolate proximally, sessile distally, gradually reduced distally, blade elliptic or lanceolate to linear-lanceolate.

mostly basal, some cauline, alternate, petiolate or sessile;

ocrea persistent or disintegrating with age and deciduous entirely or distally, chartaceous;

blade linear or lanceolate to elliptic, oblong-ovate, or ovate, margins entire or obscurely and irregularly repand.

1(–2), short-cylindric to ovoid, (10–)20–40(–50) × (8–)12–25 mm, bulblets absent;

peduncle 1–10 cm.

terminal, spikelike.

ascending or spreading, 2–8(–11) mm.

present.

1–2 per ocreate fascicle;

perianth white or pale pink;

tepals oblong, 4–5 mm, apex obtuse to acute;

stamens exserted;

anthers yellow, elliptic.

bisexual, 1–2 per ocreate fascicle, base not stipelike;

perianth nonaccrescent, white, greenish white, pink, or purplish pink, rarely red, campanulate, glabrous;

tepals 5, connate proximally ca. 1/5 their length, petaloid, monomorphic or slightly dimorphic, outer larger than inner;

stamens 5–8, sometimes poorly developed;

filaments distinct or connate basally, outer ones sometimes adnate to perianth tube, glabrous;

anthers yellow, pink, red, purple, or blackish, ovate to elliptic;

styles 3, erect or spreading, distinct or connate proximally;

stigmas 2–3, capitate.

yellowish brown or olive-brown, 3.2–4.2 × 1.3–2 mm, shiny, smooth.

included or exserted, brown to dark brown, unwinged, 3-gonous, glabrous.

embryo curved.

= 11, 12.

= 24.