Flora of North America species comparison

becoming stout, woody.

slender.

erect or ascending to prostrate, usually branched proximally;

main stem 0.8–3 mm diam. proximally.

prostrate or decumbent to erect, usually branched proximally;

main stem usually 0.4–1.8 mm diam. proximally.

stipules conspicuous, dull white to tan, narrowly triangular, 4.5–11 mm, apex long-acuminate;

blade linear, (0.6–)1–5.5 cm, fleshy, apex apiculate to spine-tipped;

axillary leaves 1–2+ per cluster.

stipules inconspicuous, dull white, broadly triangular, 1–2.8 mm, apex obtuse to acute;

blade linear, 1.5–4.5 cm, fleshy, apex ± blunt;

axillary leaf clusters mostly absent.

erect, divergent, or reflexed in fruit.

reflexed in fruit.

sepals connate 0.5–1.8 mm proximally, lobes often 3-veined, ovate to lanceolate, 4.5–7 mm, to 8 mm in fruit, margins 0.3–0.7 mm wide, apex blunt to rounded;

petals white or pink to rosy, elliptic to obovate, 0.9–1.3 times as long as sepals in flower;

stamens 9–10;

styles 0.6–3 mm.

sepals connate 0.5–0.6 mm proximally, lobes weakly 1-veined, ovate to elliptic-oblong, 2.2–3.5 mm, to 4.3–4.5 mm in fruit, margins 0.2–0.5 mm wide, apex ± acute to rounded;

petals white or pink, narrowly ovate, 0.9–1 times as long as sepals;

stamens 2–4;

styles 0.3–0.7 mm.

tan, 4.6–10 mm, 0.8–1.4 times as long as sepals.

greenish, 3.5–5.3 mm, 1.2–2 times as long as sepals.

± red-brown, often with submarginal groove or depression, suborbiculate to pyriform, compressed, (0.6–)0.7–1.2 mm, smooth to faintly or prominently tuberculate or sculpturing of parallel, wavy lines or of low, rounded mounds, not papillate;

wing absent or white to reddish brown proximally, 0.1–0.3 mm wide, margins irregular.

reddish brown, submarginal groove absent, broadly ovate, compressed, 0.9–1.4 mm, shiny, ± smooth, papillate;

wing absent or often present, whitish, 0.2–0.3 mm wide, margins irregular.

simple to 3-compound or flowers solitary and axillary.

simple to 2+-compound or flowers solitary and axillary.