Flora of North America species comparison

± slender.

slender to ± stout.

erect to ascending or prostrate, usually much-branched proximally;

main stem 0.6–2(–3) mm diam. proximally.

erect to ascending or prostrate, usually much-branched proximally;

main stem 0.3–0.5 mm diam. proximally.

stipules inconspicuous, dull white, broadly triangular, 1.2–3.5 mm, longer than wide, apex acute to short-acuminate;

blade linear, (0.8–)1.5–4 cm, fleshy, apex blunt to apiculate;

axillary leaf clusters usually absent.

stipules conspicuous, shiny white, lanceolate, 3.5–5 mm, apex long-acuminate;

blade filiform to linear, 0.4–1.5 cm, scarcely fleshy, apex apiculate to spine-tipped;

axillary leaves 2–4+ per cluster.

reflexed and oriented to 1 side in fruit.

ascending to reflexed.

sepals connate 0.5–1 mm proximally, lobes often 3-veined, ovate to elliptic, 2.5–4.5 mm, to 4.8 mm in fruit, margins 0.1–0.5 mm wide, apex acute to rounded;

petals white or pink to rosy, ovate to elliptic-oblong, 0.8–1 times as long as sepals;

stamens (1–)2–3(–5);

styles 0.4–0.7 mm.

sepals connate 0.5–0.7 mm proximally, lobes often 3-veined, lanceolate, (2–)2.5–3.2 mm, to 4 mm in fruit, margins 0.1–0.3 mm wide, apex obtuse to acute;

petals pink, obovate to ovate, 0.9–1 times as long as sepals;

stamens 6–10;

styles 0.6–0.8 mm.

greenish to tan, 2.8–6.4 mm, 1–1.5 times as long as sepals.

greenish to tan, 3.5–5 mm, 1–1.2 times as long as sepals.

light brown to reddish brown, with submarginal groove, broadly ovate, ± plump, 0.5–0.7(–0.8) mm, dull, ± smooth, often with gland-tipped papillae (30x);

wing usually absent or incomplete.

red-brown to dark brown, with submarginal groove, broadly ovate or ± truncate, angular at broad end, plump, 0.4–0.6 mm, sculpturing of parallel, wavy lines, margins with peglike papillae (30x);

wing absent.

simple to 3+-compound or flowers solitary and axillary.

simple to 3+-compound or flowers solitary and axillary.

= 18? (Asia), 36 (Europe).

= 18, 27, 36, 54 (all Europe).