Flora of North America species comparison

dark purplish brown to black, slightly flexuous, ridged, puberulent.

light to dark reddish brown, slightly flexuous, ridged, glabrous.

compound, 50–140 mm;

petiole 5–30 mm, puberulent, gland present, below proximalmost pinna pair, 0.7–1.5 mm diam., puberulent;

rachis glands scattered, with some between pinna pairs (at pinna pair nodes and internodes);

pinnae 7–31 pairs, 15–70 mm, 3–7 mm between pinna pairs;

leaflets 20–70 pairs per pinna, blades linear, 1.5–3.5 × 0.5–0.8 mm, base cuneate, apex obtuse, not apiculate, surfaces puberulent.

phyllodic;

phyllode flat, slightly falcate, narrowly elliptic to oblanceolate, 40–95 × 4–15 mm, venation parallel, with 3–5 prominent veins, minor veins weakly reticulate, apex obtuse, obliquely apiculate, surfaces glabrous;

gland 0 or 1, 0–2 mm distal to pulvinus;

pulvinus 1–2 mm.

globose heads, densely flowered, 5–9 mm diam., in axillary pseudoracemes of 20–35 heads or terminal pseudopanicles of 1–10 pseudoracemes.

globose heads, densely flowered, 6–9 mm diam., in short pseudoracemes of 2 heads solitary in leaf axils.

4–9 mm.

2–10 mm.

5-merous, pale yellow to cream;

calyx 0.6–1.1 mm;

corolla 1.4–2 mm;

filaments 3.5–4.5 mm;

ovary glabrous.

5-merous, golden yellow;

calyx 0.9–1.3 mm;

corolla 1.3–2 mm;

filaments 2.5–3.5 mm;

ovary glabrous.

flattened, linear, 30–140 × 4–8 mm, slightly constricted between seeds.

elliptic in cross section, oblong, 50–130 × 9–17 mm, not constricted between seeds.

aril light yellow, obovate, 1–2 mm, forming cap on seed.

aril orange to scarlet, enlarged, encircling seed in 2 folds.

= 26.