Flora of North America species comparison

filiform.

filiform to somewhat thickened.

erect to ascending, green, 5–30 cm, glabrous or sometimes stipitate-glandular distally or throughout, internodes of all stems 1–7 times as long as leaves; wintering stems absent.

erect to widely spreading, green or purple, 4–30 cm, stipitate-glandular distally, internodes of all stems 1–5 times as long as leaves.

overlapping proximally, connate proximally, with loose, scarious to herbaceous sheath 0.1–0.5 mm;

blade straight to variously curved, green, flat, prominently 1-veined abaxially, linear, 2–20 × 0.5–1.5(–1.8) mm, flexuous, margins not thickened, herbaceous, smooth, apex green or purple, blunt to acute, flat, ± shiny, glabrous to stipitate-glandular;

axillary leaves absent.

sometimes overlapping proximally, ± evenly spaced, connate proximally, with loose, scarious sheath 0.3–0.7 mm;

blade straight to variously curved or coiled, green or purple, concave, 1–3 veined, linear, 5–40 × 0.2–0.4 mm, flexuous, margins not thickened, often scarious, sometimes ciliate or stipitate-glandular, apex green to purple, acute, navicular, dull, glabrous to stipitate-glandular;

axillary leaves present proximally.

5–30-flowered, open cymes;

bracts subulate to ovate, herbaceous.

7–15+-flowered, open cymes;

bracts subulate, scarious.

0.3–3 cm, stipitate-glandular.

0.2–4 cm, stipitate-glandular.

hypanthium shallowly disc-shaped;

sepals prominently (3- or) 5-veined, narrowly to broadly lanceolate (herbaceous portion narrowly to broadly lanceolate), 4–5.5 mm, not enlarging in fruit, apex green or purple, narrowly acute to acuminate, not hooded, glabrous to sparsely stipitate-glandular;

petals obovate, 1.5–2.2(–3) times as long as sepals, apex rounded, broadly notched.

hypanthium disc-shaped;

sepals 1(–3)-veined, midvein often more prominent than lateral veins, ± ovate (herbaceous portion lanceolate to oblong-lanceolate to narrowly ovate), 2.5–3.7 mm, not enlarging in fruit, apex often purple, obtuse to acute, not hooded, stipitate-glandular at least proximally;

petals ovate, (1–)1.7–2.1 times as long as sepals, apex broadly rounded, entire or irregularly dentate.

on stipe ca. 0.1 mm or shorter, narrowly ellipsoid, 3–4.2 mm, shorter than sepals.

on stipe 0.3–0.5 mm, broadly ovoid, 4 mm, longer than sepals.

reddish brown to black, suborbiculate, radicle obscure, slightly compressed, 0.5–0.6 mm, tuberculate;

tubercles low, rounded.

reddish brown, winged, orbiculate with radicle not prolonged, compressed, 1.3–2 mm, tuberculate;

tubercles low, elongate.