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.

phyllodic;

phyllode flat, falcate, narrowly elliptic to oblanceolate, 90–150 × 10–35 mm, venation pinnate, midvein medial, minor veins not obvious, apex obtuse, apiculate, surfaces glabrous;

gland 1 (or 2), 3–45 mm distal to pulvinus;

pulvinus 4–8 mm.

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

globose heads, densely flowered, 7–10 mm diam., usually in solitary pseudoracemes of 20–30 heads in leaf axils.

0–2 mm.

2–5 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, golden yellow;

calyx 1.5–2 mm;

corolla 2.5–3 mm;

filaments 3.5–4.5 mm;

ovary glabrous.

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

flattened, linear, 50–130 × 5–7 mm, slightly constricted between seeds.

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

aril light yellow, obovate, forming cap on seed.