Flora of North America species comparison

erect from sheath, mostly longer than scapes, 4–35 cm;

sheath 1.1–7.5 cm × 0.7–1 mm, ligule not hoodlike, unlobed;

blade 0.2–5 mm wide, apex round-acute.

basal, emersed, sessile;

sheath persisting longer than blade, not leaving circular scar when shed, ligulate, auriculate with scarious lobes;

blade linear;

intravaginal squamules scales, more than 2.

scape green to brown, mostly exceeded by leaves, 4.5–21.5 cm × 0.3–1.6 mm;

racemes 0.6–20.3 × 0.4–1.3 cm;

pedicels 0.4–2.1 × 0.1–0.3 mm.

terminal or axillary, scapose spikes, spikelike racemes, rarely solitary flowers, without spathe, pedunculate;

peduncle following fertilization not elongating, not spiraling.

tepals oval to elliptic, 0.6–1 × 0.8–0.9 mm, apex obtuse;

pistils 6, 3 fertile, 3 sterile.

bisexual or unisexual, staminate and pistillate on same plant; subtending bracts absent;

perianth present, rarely absent;

tepals 1, or 6 in 1–2 series.

fruiting receptacle with wings;

schizocarps globose to broader than long, 1–2 × 1.5–2.3 mm;

mericarps obovate, strongly 3-keeled, 1–1.5 × 0.5–0.9 mm, beak reflexed, ca. 0.2 mm.

nutlets or schizocarps.

1;

embryo straight.

unavailableunknown.

and staminate flowers: stamens 1, 4, or 6, epitepalous, when 4 or 6, then in 2–3 series;

anthers distinct, dehiscing longitudinally;

pollen globose.

and bisexual flowers: pistils 1, 3, or 6, not stipitate, when 3 or 6, coherent or weakly connate;

ovules basal, anatropous.