Flora of North America species comparison

profusely branched (erect or spreading and matlike); glaucous, scabrous.

sparsely branched (central stem dominant); glabrous.

stipules finely divided into crinkled threads, 2 mm;

petiole 0.1–0.3 cm;

leaflet blade linear-obovate, 0.5–1.5 × 0.1–0.3 cm, fleshy, margins entire, apex obtuse to acute, mucronate, surfaces scabrous.

stipules linear, 0.5–1 mm (scarious);

petiole 0.8–2 cm;

leaflet blade oblanceolate to oblong-lanceolate, 1.5–3 × 0.4–1 cm, thin, margins entire, apex acute to rounded or slightly emarginate, surfaces glabrous.

solitary flowers in axils of closely spaced leaves throughout;

bracts unifoliate, 8–10 mm.

racemes, terminating stems and branches, 2–12 cm (10–50 cm in fruit);

bracts unifoliate, 5–12 mm (distalmost flowers often absent).

reflexed in fruit, 1–2 mm.

ascending in fruit, 4–6 mm (5–8 mm in fruit).

sepals green, ovate, 0.8–1.2 × 0.3–0.7 mm, glabrous;

petals pale yellow, oblong, 1.5–2 × 0.5–1 mm, glabrous;

stamens yellow, 1.5–2.2 mm;

anthers 0.3–0.5 mm;

gynophore strongly reflexed, 0.5–3 mm in fruit;

ovary globose, 1–1.5 mm;

style 2–3(–5) mm.

sepals green, lanceolate, 0.9–2.2 × 0.5–0.7 mm, glabrous;

petals yellow, oblong, 6–9 × 2–4 mm, glabrous;

stamens yellow, 8–12 mm;

anthers 1.5–1.9 mm;

gynophore ascending, 6–17 mm in fruit;

ovary rhomboidal, 1–1.5 mm;

style 1–2 mm.

globose or deltoid, 2–3 × 2–3.2 mm, glabrous, (valves triangular).

rhomboidal, 4–8 × 6–10 mm, glabrous.

1–4, yellowish, globose, 1.3–1.7 mm, smooth.

6–16, dark brown, globose, 2–2.2 mm, smooth.

= 34.