Flora of North America species comparison

straggling, with erect branches, smoothly 4-angled, (20–)30–60 cm, glabrous.

sessile;

blade linear-lanceolate, 1.5–5 cm × 1–4 mm, base cuneate, margins smooth, apex acute, glabrous, usually glaucous.

terminal, (1–)2–21-flowered cymes;

bracts narrowly lanceolate, 2–7 mm, herbaceous or scarious with green midrib, not ciliate.

ascending, 30–100 mm, glabrous.

12–18 mm diam.;

sepals 5, distinctly 3-veined, lanceolate, 6–8 mm, margins wide, scarious, apex acute, glabrous;

petals 5, 7–10 mm, 1.5–2 times as long as sepals;

stamens 10;

styles 3, erect, 5–7 mm;

stigmas club-shaped.

green to straw colored, ovoid-oblong, 8–10 mm, ± equaling sepals, apex acute, opening by 6 valves;

carpophore absent.

dark reddish brown, round, 1.2–1.4 mm diam., tuberculate;

tubercles shallow, round.

= 130–188 (Europe), ca. 198.