Flora of North America species comparison

trailing to ascending, branched, 4-angled, 10–60 cm, glabrous.

branched distally, 4-angled, 15–60 cm, glabrous or hispid-puberulent distally.

subsessile;

blade broadly elliptic to ovate, 0.4–2.6 cm × 2–15 mm, base round to cuneate, margins entire, apex acuminate, glabrous or with a few scattered cilia.

sessile;

blade narrowly lanceolate, widest near base, 4–8 cm × 2–10 mm, somewhat coriaceous, base round and clasping, margins and abaxial midrib very rough, apex narrowly and sharply acuminate, scabrid, otherwise glabrous, slightly glaucous.

with flowers solitary in leaf axils;

bracts absent.

terminal, loose, 3–31-flowered cymes;

bracts foliaceous, 5–50 mm, margins and abaxial midrib scabrid.

ascending, straight, mostly 5–30 mm, glabrous.

ascending, 1–60 mm, slender, pubescent.

4–5 mm;

sepals 5, prominently 3-veined, lanceolate, 2–4 mm, margins broadly scarious, apex acute to acuminate, glabrous;

petals usually absent, rarely 1–5 and much shorter than sepals;

stamens 10 or fewer;

styles 3, spreading to ascending, curved but not curled, ca. 1 mm.

20–30 mm diam.;

sepals 5, inconspicuously 3-veined, ovate-lanceolate, 6–8 mm, margins narrow, scarious, apex acute, glabrous;

petals 5 (rarely absent), 8–14 mm, longer than sepals, blade apex 2-fid to middle;

stamens 10, sometimes fewer by degeneration;

styles 3, ascending, ca. 4 mm.

straw colored or brownish, ovoid to ovoid-ellipsoid, 3.5–6 mm, equaling or slightly exceeding sepals, apex broadly acute, opening by 6 valves;

carpophore absent.

green, subglobose, 5–6 mm, ± equaling sepals, apex obtuse, opening by 3 valves, tardily splitting into 6;

carpophore absent.

brown, broadly elliptic, 0.7–1 mm (longest axis), distinctly rugose.

reddish brown, reniform, 2–3 mm diam., papillose.

= 26, 52.

= 26 (Europe).