Flora of North America species comparison

erect, simple or sparingly branched proximally, scabrous or, sometimes, glabrous proximally.

erect, usually branched proximally and distally, sometimes simple, glabrous.

persistent;

ocrea margins ciliate;

blade linear to falcate, (10–)19–36(–50) × (0.6–)1–1.5(–3) mm, base tapered, margins not hyaline, apex acuminate, minutely scabrous.

fugaceous;

ocrea margins ciliate;

blade linear, (0.9–)4–10.5(–15) × 0.3–0.8 mm, base barely tapered, margins hyaline, apex obtuse, glabrous.

(5–)10–24(–30) mm;

ocreola encircling rachis, only the base adnate to rachis, apex acuminate.

2–6(–8) mm;

ocreola not encircling rachis, sides and bases adnate to rachis, apex acuminate.

spreading in anthesis and fruit, 0.1–0.7 mm, as long as or much longer than subtending ocreola.

spreading in anthesis, spreading to reflexed in fruit, 0.4–1.3 mm, much longer than subtending ocreola.

bisexual or some pistillate, these usually distal;

outer tepals loosely appressed in anthesis and fruit, pink with white margins, often drying orange, ovate, 1.1–2.3 mm in anthesis, margins erose;

inner and transitional tepals loosely appressed in anthesis and fruit, pink with white margins, often drying orange, oblong, 1.2–2.2 mm in anthesis, margins deeply fringed;

filaments monomorphic;

anthers pink;

styles and stigmas 0.6–1.3 mm in anthesis.

bisexual or pistillate;

outer tepals loosely appressed to spreading in fruit, white, distal portion of midrib often greenish, obovate to elliptic, 0.5–0.9 mm in anthesis, margins obscurely erose;

inner tepals loosely appressed in anthesis and fruit, white, obovate to elliptic, 0.6–1.4 mm in anthesis, margins entire to erose;

filaments dimorphic;

anthers yellow or pink;

styles and stigmas 0.1–0.3 mm in anthesis.

included or exserted, yellow-brown, 3-gonous, 1.5–2.5 × 1–1.5 mm, shiny and smooth proximally, dull to shiny and minutely roughened distally.

exserted, yellow-brown, 3-gonous, 1.7–2.1 × 1.3–1.6 mm, shiny, smooth.

= 36.