Flora of North America species comparison

stout, woody.

threadlike.

ascending to spreading, green or often purple, 1–3 cm, glabrous, internodes of flowering stems 0.2–1 times as long as leaves.

spreading to erect, green, 1–5 cm, glabrous, internodes of all stems 2–10 times as long as leaves.

overlapping, ± tightly (vegetative), ± evenly spaced proximally (cauline), connate-perfoliate proximally, with tight, herbaceous sheath 0.2–0.3 mm;

blade upwardly curved, green or often purple, keeled, prominently 1-veined abaxially, subulate, 3-angled, 1–4 × 0.5–0.7 mm, flexuous, margins rounded, herbaceous, smooth, apex green to purple, rounded, navicular, shiny, glabrous;

axillary leaves well developed.

not overlapping, irregularly spaced, connate proximally, with loose, mostly herbaceous sheath 0.2–0.3 mm;

blade ascending to widely spreading, green, concave proximally, flat distally, obscurely 1-veined, awl-shaped to lanceolate, 1.5–5 × 0.2–1.5 mm, flexuous, margins not thickened, scarious throughout or proximally, smooth, apex green or purple, acute to obtuse, flat to navicular, often shiny, glabrous;

axillary leaves absent.

solitary flowers, axillary or terminal (rarely present);

bracts absent.

2–9-flowered, open cymes;

bracts subulate, herbaceous, margins scarious proximally.

0.1–2 cm, glabrous.

0.1–0.5 cm, glabrous.

hypanthium disc-shaped;

sepals 1-veined, oblong-ovate (herbaceous portion usually purple, oblong-ovate), 1.5–2.5 mm, not enlarging in fruit, apex often purple, obtuse to acuminate, navicular, not hooded, glabrous;

petals obovate to spatulate, 1.5–2 times as long as sepals, apex obtuse, entire.

hypanthium disc-shaped;

sepals 1-veined, or weakly 3-veined in proximal 1/5, ovate to lanceolate (herbaceous portion lanceolate to narrowly so), 1.5–3.5 mm, not enlarging in fruit, apex green or purple, acute to acuminate, not hooded, glabrous;

petals narrowly lanceolate, 0.5–1 times as long as sepals, apex narrowly acute, entire, or absent.

on stipe ca. 0.1–0.2 mm, spheric, 1.5–2.5 mm, equaling sepals.

on stipe ca. 0.1 mm, ± ovoid, ca. 3 mm, equaling or longer than sepals.

brown, suborbiculate, compression unknown, ca. 0.6 mm, obscurely reticulate.

brown or reddish, asymmetically reniform with radicle prolonged into beak, not compressed, 0.5–0.6 mm, minutely papillate.

= 58 (Russia), 60.