Flora of North America species comparison

phyllodic;

phyllode flat, not falcate, narrowly elliptic, 50–150 × 10–25 mm, venation parallel, with 2–4 prominent veins, minor veins prominent, apex acute to obtuse, apiculate, surfaces glabrous;

gland 1, 0–7 mm distal to pulvinus;

pulvinus 2–5 mm.

compound, 10–33 mm;

petiole 0–2 mm, glabrous, gland absent;

pinnae 2–5 pairs, 10–28 mm, 4–9 mm between pinna pairs;

leaflets 8–24 pairs per pinna, blades oblong, 3.5–7.5 × 0.8–1.3 mm, base obtuse, apex obtuse to acute, not apiculate, surfaces glabrous.

cylindrical spikes, densely flowered, 20–50 × 5–8 mm, solitary or in fascicles of 2 or 3 in leaf axils.

globose heads, densely flowered, 4–8 mm diam., in axillary pseudoracemes of 8–35 heads or terminal pseudopanicles of 1–15 pseudoracemes.

0–2 mm.

2–6 mm.

4-merous, bright yellow;

calyx 0.6–0.9 mm;

corolla 1.5–2.1 mm;

filaments 2.6–3.6 mm;

ovary pubescent.

5-merous, bright yellow;

calyx 0.4–0.9 mm;

corolla 1.2–2 mm;

filaments 2.5–3.5 mm;

ovary glabrous.

elliptic in cross section, linear, 50–150 × 5–9 mm, somewhat constricted between seeds.

flattened, oblong, 30–150 × 7–13 mm, sometimes slightly constricted between some seeds.

aril light yellow, folded several times into thickened, lateral, skirtlike aril covering seed apex.

aril light yellow, obovate, 2–3 mm, forming small cap on seed.

= 26.