Flora of North America species comparison

becoming stout, woody.

filiform.

erect to ascending, often arcuately so, much-branched proximally;

main stem 0.4–1.3 mm diam. proximally.

erect to ascending or arcuate-spreading, simple or branched proximally;

main stem 0.3–1 mm diam. proximally.

stipules ± conspicuous, dull white, broadly lance-acuminate, 3–8 mm, apex mucronate;

blade filiform to linear, 1–4.2 cm, somewhat fleshy, apex apiculate or spine-tipped;

axillary leaves 2–4 per cluster.

stipules inconspicuous, dull white to tan, broadly triangular, 1–2.5 mm, apex acute to short-acuminate;

blade filiform to linear, 0.5–3.5 cm, fleshy, apex blunt to apiculate;

axillary leaf clusters absent.

spreading to reflexed in fruit.

divergently spreading to reflexed in fruit.

sepals connate 0.5–0.7 mm proximally, lobes 1- or 3-veined, lance-ovate to lanceolate, 2.5–4 mm, to 5 mm in fruit, margins 0.1–0.6 mm wide, apex acute to acuminate but often briefly rounded at tip;

petals white, ± elliptic, 0.7–0.8 times as long as sepal;

stamens 7–10;

styles 0.4–0.6 mm.

sepals connate 0.2–0.5 mm proximally, lobes ± weakly 1-veined, elliptic to ovate, 1.8–2.7 mm, to 3.5 mm in fruit, margins 0.1–0.5 mm wide, apex broadly acute to rounded;

petals white to rosy, ± ovate, 0.7–0.8 times as long as sepals;

stamens 4–8;

styles 0.4–0.8 mm.

greenish to tan, (4–)5–6.5 mm, 1.1–1.3 times as long as sepals.

greenish, 3.3–5 mm, 1–1.3 times as long as sepals.

reddish brown to dark brown, often with submarginal groove, broadly ovate, plump, 0.4–0.5 mm, smooth, often sculptured with parallel, wavy lines, papillae often present;

wing often present, white, 0.1–0.2 mm wide, margins irregular.

black, often iridescent, submarginal groove usually absent, broadly ovate, compressed, 0.6–0.8 mm, shiny, sculpturing of parallel, wavy lines, not papillate (40x);

wing absent or, rarely, incomplete, brownish, 0.1–0.2 mm, margins irregular.

simple to 3-compound.

simple to 2-compound.